Support building with py2 or py3

PATCH In review Daniel P. Berrange 6 participants 30 messages Jan 16, 2018 – Jun 1, 2018 Kbuild

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Daniel P. Berrange

author

2018-01-16 13:42 UTC #0 lore raw

v5 cover Support building with py2 or py3

This is an update for my previously posted series:

v2: https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg06528.html
v3: https://lists.gnu.org/archive/html/qemu-devel/2018-01/msg02978.html
v4: https://lists.gnu.org/archive/html/qemu-devel/2018-01/msg03150.html

This series enables some level of CI testing for py3 so that our CI jobs will get coverage of both py2 and py3 builds to avoid bitrot.

I did a test travis build with py 3.0 and py 3.6 and got success:

https://travis-ci.org/berrange/qemu/builds/328223261

The goal was to achieve the following

  ./configure --python=/usr/bin/python3
  make
  make check

This still requires passing python path to configure explicitly. A further improvement would be for configure to automatically detect a pythjon 3 binary and use it preferentially to python 2.

I have not attempted to fix/validate the block I/O tests. I would expect them to be broken, but easily fixable with the similar kind of scope changes as seen here. I felt it better to tackle that separately to avoid this initial series getting too large.

Although the Python 2 EOL date is 2020, we already have distros which are not shipping Python 2 by default (Fedora >= 26 has dropped Py2 from the default install). Any new releases of long life and/or enterprise distros may well not ship Python 2 given that it would go EOL long before the EOL of the distro itself. IOW QEMU does have a fairly pressing need to be able to support Python 3 for building.

A request for py3 is tracked here:

https://bugs.launchpad.net/qemu/+bug/1708462

If, rather than supporting py2+py3 in parallel, we wish to entirely drop py2 support, this series would not change significantly

- The "from __future__ import print_function" line can be removed from patch 1.
- The code in patches 2, 3, 4 to deal with changed module names for a few functions can be simpified to only try the py3 location
- The travis + docker jobs would be fully updated to install py3, or delete jobs which can't support py3

Given how little code is removed should we drop py2 support, I don't believe it is in our immediate interests to do this. It would create extra pain for consumers of QEMU, with little benefit to QEMU code maintainance. The key thing is ensuring our travis+docker jobs provide satisfactory automated test coverage for the variety of python versions in the distros we care about targetting.

NB, Patch 11 here is not related to python 3 work - it was just a temporary pre-requisite of pulling in the keycodemapdb update.

Changes since v4:

- Fix broken rebase which accidentally squashed first two patches together
- Unset LC_ALL, and set LANG + LC_CTYPE, instead of only LANG (Eric)

Changes since v3:

- Remove space before '(' in print() function calls (Phillippe)
- Force use of en_US.UTF-8 for QAPI code generation (Patchew)

Changes since v2:

- Pull in fix for keycodemapdb
- Enable testing with Travis
- Enable testing with Fedora Docker images
- Fix for sort ordering to fix 'make check-qapi-schema'
- Fix for signrom data

Daniel P. Berrange (13):
qapi: convert to use python print function instead of statement
qapi: use items()/values() intead of iteritems()/itervalues()
qapi: Use OrderedDict from standard library if available
qapi: adapt to moved location of StringIO module in py3
qapi: Adapt to moved location of 'maketrans' function in py3
qapi: remove '-q' arg to diff when comparing QAPI output
qapi: ensure stable sort ordering when checking QAPI entities
qapi: force a UTF-8 locale for running Python
scripts: ensure signrom treats data as bytes
configure: allow use of python 3
ui: update keycodemapdb to get py3 fixes
travis: improve python version test coverage
docker: change Fedora images to run with python3

Miika S (1):
input: add missing JIS keys to virtio input

 .travis.yml                            | 14 +++++++----
 Makefile                               | 22 +++++++++--------
 configure                              |  5 ++--
 hw/input/virtio-input-hid.c            |  7 ++++++
 qapi/ui.json                           |  5 +++-
 scripts/qapi.py                        | 43 ++++++++++++++++++++--------------
 scripts/qapi2texi.py                   | 11 +++++----
 scripts/signrom.py                     |  4 ++--
 tests/Makefile.include                 |  6 ++---
 tests/docker/dockerfiles/fedora.docker |  3 ++-
 tests/qapi-schema/test-qapi.py         | 43 +++++++++++++++++-----------------
 ui/keycodemapdb                        |  2 +-
 12 files changed, 96 insertions(+), 69 deletions(-)

Signature · 1 line

2.14.3

Daniel P. Berrange

author

2018-01-16 13:43 UTC #1 lore raw

PATCH v5 1/14 qapi: convert to use python print function instead of statement

Python 3 no longer supports the bare "print" statement, it must be called as a normal function with round brackets. It is possible to opt-in to this new syntax with Python 2.6 onwards by importing the "print_function" from the "__future__" module, making it easy to support Python 2 and 3 in parallel.

Reviewed-by Philippe Mathieu-Daudé <[email protected]>

Signed-off-by Daniel P. Berrange <[email protected]>

---
 scripts/qapi.py                | 12 ++++++------
 scripts/qapi2texi.py           |  9 +++++----
 tests/qapi-schema/test-qapi.py | 41 +++++++++++++++++++++--------------------
 3 files changed, 32 insertions(+), 30 deletions(-)

scripts/qapi.py +6 -6

index 43a54bf40f..64fde4b6c5 100644
@@ -11,6 +11,7 @@
 # This work is licensed under the terms of the GNU GPL, version 2.
 # See the COPYING file in the top-level directory.
 
+from __future__ import print_function
 import errno
 import getopt
 import os

@@ -1467,7 +1468,7 @@ class QAPISchema(object):
             self._def_exprs()
             self.check()
         except QAPIError as err:
-            print >>sys.stderr, err
+            print(err, file=sys.stderr)
             exit(1)
 
     def _def_entity(self, ent):

@@ -1931,7 +1932,7 @@ def parse_command_line(extra_options='', extra_long_options=[]):
                                        ['source', 'header', 'prefix=',
                                         'output-dir='] + extra_long_options)
     except getopt.GetoptError as err:
-        print >>sys.stderr, "%s: %s" % (sys.argv[0], str(err))
+        print("%s: %s" % (sys.argv[0], str(err)), file=sys.stderr)
         sys.exit(1)
 
     output_dir = ''

@@ -1945,9 +1946,8 @@ def parse_command_line(extra_options='', extra_long_options=[]):
         if o in ('-p', '--prefix'):
             match = re.match(r'([A-Za-z_.-][A-Za-z0-9_.-]*)?', a)
             if match.end() != len(a):
-                print >>sys.stderr, \
-                    "%s: 'funny character '%s' in argument of --prefix" \
-                    % (sys.argv[0], a[match.end()])
+                print("%s: 'funny character '%s' in argument of --prefix" \
+                      % (sys.argv[0], a[match.end()]), file=sys.stderr)
                 sys.exit(1)
             prefix = a
         elif o in ('-o', '--output-dir'):

@@ -1964,7 +1964,7 @@ def parse_command_line(extra_options='', extra_long_options=[]):
         do_h = True
 
     if len(args) != 1:
-        print >>sys.stderr, "%s: need exactly one argument" % sys.argv[0]
+        print("%s: need exactly one argument" % sys.argv[0], file=sys.stderr)
         sys.exit(1)
     fname = args[0]

scripts/qapi2texi.py +5 -4

index 92e2af2cd6..70e1fe76ef 100755
@@ -4,6 +4,7 @@
 # This work is licensed under the terms of the GNU LGPL, version 2+.
 # See the COPYING file in the top-level directory.
 """This script produces the documentation of a qapi schema in texinfo format"""
+from __future__ import print_function
 import re
 import sys

@@ -274,15 +275,15 @@ def texi_schema(schema):
 def main(argv):
     """Takes schema argument, prints result to stdout"""
     if len(argv) != 2:
-        print >>sys.stderr, "%s: need exactly 1 argument: SCHEMA" % argv[0]
+        print("%s: need exactly 1 argument: SCHEMA" % argv[0], file=sys.stderr)
         sys.exit(1)
 
     schema = qapi.QAPISchema(argv[1])
     if not qapi.doc_required:
-        print >>sys.stderr, ("%s: need pragma 'doc-required' "
-                             "to generate documentation" % argv[0])
+        print("%s: need pragma 'doc-required' "
+               "to generate documentation" % argv[0], file=sys.stderr)
         sys.exit(1)
-    print texi_schema(schema)
+    print(texi_schema(schema))
 
 
 if __name__ == '__main__':

tests/qapi-schema/test-qapi.py +21 ~~-20~~

78 lines not on this page · raw message

Signature · 1 line

2.14.3

Daniel P. Berrange

author

2018-01-16 13:43 UTC #2 lore raw

PATCH v5 2/14 qapi: use items()/values() intead of iteritems()/itervalues()

In reply to Daniel P. Berrange

The iteritems()/itervalues() methods are gone in py3, but the items()/values() methods are still around. The latter are less efficient than the former in py2, but this has unmeasurably small impact on QEMU build time, so taking portability over efficiency is a net win.

Reviewed-by Philippe Mathieu-Daudé <[email protected]>

Signed-off-by Daniel P. Berrange <[email protected]>

---
 scripts/qapi.py                | 12 ++++++------
 scripts/qapi2texi.py           |  2 +-
 tests/qapi-schema/test-qapi.py |  2 +-
 3 files changed, 8 insertions(+), 8 deletions(-)

scripts/qapi.py +6 -6

index 64fde4b6c5..98d7123d27 100644
@@ -245,7 +245,7 @@ class QAPIDoc(object):
                                "'Returns:' is only valid for commands")
 
     def check(self):
-        bogus = [name for name, section in self.args.iteritems()
+        bogus = [name for name, section in self.args.items()
                  if not section.member]
         if bogus:
             raise QAPISemError(

@@ -300,7 +300,7 @@ class QAPISchemaParser(object):
                 if not isinstance(pragma, dict):
                     raise QAPISemError(
                         info, "Value of 'pragma' must be a dictionary")
-                for name, value in pragma.iteritems():
+                for name, value in pragma.items():
                     self._pragma(name, value, info)
             else:
                 expr_elem = {'expr': expr,

@@ -1566,7 +1566,7 @@ class QAPISchema(object):
 
     def _make_members(self, data, info):
         return [self._make_member(key, value, info)
-                for (key, value) in data.iteritems()]
+                for (key, value) in data.items()]
 
     def _def_struct_type(self, expr, info, doc):
         name = expr['struct']

@@ -1598,11 +1598,11 @@ class QAPISchema(object):
                 name, info, doc, 'base', self._make_members(base, info)))
         if tag_name:
             variants = [self._make_variant(key, value)
-                        for (key, value) in data.iteritems()]
+                        for (key, value) in data.items()]
             members = []
         else:
             variants = [self._make_simple_variant(key, value, info)
-                        for (key, value) in data.iteritems()]
+                        for (key, value) in data.items()]
             typ = self._make_implicit_enum_type(name, info,
                                                 [v.name for v in variants])
             tag_member = QAPISchemaObjectTypeMember('type', typ, False)

@@ -1617,7 +1617,7 @@ class QAPISchema(object):
         name = expr['alternate']
         data = expr['data']
         variants = [self._make_variant(key, value)
-                    for (key, value) in data.iteritems()]
+                    for (key, value) in data.items()]
         tag_member = QAPISchemaObjectTypeMember('type', 'QType', False)
         self._def_entity(
             QAPISchemaAlternateType(name, info, doc,

scripts/qapi2texi.py +1 -1

index 70e1fe76ef..bf1c57b2e2 100755
@@ -146,7 +146,7 @@ def texi_member(member, suffix=''):
 def texi_members(doc, what, base, variants, member_func):
     """Format the table of members"""
     items = ''
-    for section in doc.args.itervalues():
+    for section in doc.args.values():
         # TODO Drop fallbacks when undocumented members are outlawed
         if section.text:
             desc = texi_format(section.text)

tests/qapi-schema/test-qapi.py +1 -1

index a43fa873e1..ac43d3458e 100644
@@ -63,7 +63,7 @@ for doc in schema.docs:
     else:
         print('doc freeform')
     print('    body=\n%s' % doc.body.text)
-    for arg, section in doc.args.iteritems():
+    for arg, section in doc.args.items():
         print('    arg=%s\n%s' % (arg, section.text))
     for section in doc.sections:
         print('    section=%s\n%s' % (section.name, section.text))

Signature · 1 line

2.14.3

Daniel P. Berrange

author

2018-01-16 13:44 UTC #3 lore raw

PATCH v5 3/14 qapi: Use OrderedDict from standard library if available

In reply to Daniel P. Berrange

The OrderedDict class appeared in the 'collections' module from python 2.7 onwards, so use that in preference to our local backport if available.

Reviewed-by Philippe Mathieu-Daudé <[email protected]>

Signed-off-by Daniel P. Berrange <[email protected]>

---
 scripts/qapi.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

scripts/qapi.py +4 -1

index 98d7123d27..514b7bb5a4 100644
@@ -18,7 +18,10 @@ import os
 import re
 import string
 import sys
-from ordereddict import OrderedDict
+try:
+    from collections import OrderedDict
+except:
+    from ordereddict import OrderedDict
 
 builtin_types = {
     'null':     'QTYPE_QNULL',

Signature · 1 line

2.14.3

Daniel P. Berrange

author

2018-01-16 13:44 UTC #4 lore raw

PATCH v5 4/14 qapi: adapt to moved location of StringIO module in py3

In reply to Daniel P. Berrange

Reviewed-by Philippe Mathieu-Daudé <[email protected]>

Signed-off-by Daniel P. Berrange <[email protected]>

---
 scripts/qapi.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

scripts/qapi.py +5 -2

index 514b7bb5a4..514cca44bf 100644
@@ -22,6 +22,10 @@ try:
     from collections import OrderedDict
 except:
     from ordereddict import OrderedDict
+try:
+    from StringIO import StringIO
+except ImportError:
+    from io import StringIO
 
 builtin_types = {
     'null':     'QTYPE_QNULL',

@@ -1995,8 +1999,7 @@ def open_output(output_dir, do_c, do_h, prefix, c_file, h_file,
         if really:
             return open(name, opt)
         else:
-            import StringIO
-            return StringIO.StringIO()
+            return StringIO()
 
     fdef = maybe_open(do_c, c_file, 'w')
     fdecl = maybe_open(do_h, h_file, 'w')

Signature · 1 line

2.14.3

Daniel P. Berrange

author

2018-01-16 13:44 UTC #5 lore raw

PATCH v5 5/14 qapi: Adapt to moved location of 'maketrans' function in py3

In reply to Daniel P. Berrange

Reviewed-by Eric Blake <[email protected]>

Signed-off-by Daniel P. Berrange <[email protected]>

---
 scripts/qapi.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

scripts/qapi.py +4 -1

index 514cca44bf..1fdd189c0d 100644
@@ -1734,7 +1734,10 @@ def c_enum_const(type_name, const_name, prefix=None):
         type_name = prefix
     return camel_to_upper(type_name) + '_' + c_name(const_name, False).upper()
 
-c_name_trans = string.maketrans('.-', '__')
+if hasattr(str, 'maketrans'):
+    c_name_trans = str.maketrans('.-', '__')
+else:
+    c_name_trans = string.maketrans('.-', '__')
 
 
 # Map @name to a valid C identifier.

Signature · 1 line

2.14.3

Daniel P. Berrange

author

2018-01-16 13:44 UTC #6 lore raw

PATCH v5 6/14 qapi: remove '-q' arg to diff when comparing QAPI output

In reply to Daniel P. Berrange

When the qapi schema tests fail they merely print that the expected output didn't match the actual output. This is largely useless when trying diagnose what went wrong. Removing the '-q' arg to diff means that it is still silent on successful tests, but when it fails we'll see details of the incorrect output.

Reviewed-by Eric Blake <[email protected]>

Signed-off-by Daniel P. Berrange <[email protected]>

---
 tests/Makefile.include | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

tests/Makefile.include +3 -3

index 39a4b5359d..d65fb4e1b3 100644
@@ -908,10 +908,10 @@ $(patsubst %, check-%, $(check-qapi-schema-y)): check-%.json: $(SRC_PATH)/%.json
 		$^ >$*.test.out 2>$*.test.err; \
 		echo $$? >$*.test.exit, \
 		"TEST","$*.out")
-	@diff -q $(SRC_PATH)/$*.out $*.test.out
+	@diff $(SRC_PATH)/$*.out $*.test.out
 	@# Sanitize error messages (make them independent of build directory)
-	@perl -p -e 's|\Q$(SRC_PATH)\E/||g' $*.test.err | diff -q $(SRC_PATH)/$*.err -
-	@diff -q $(SRC_PATH)/$*.exit $*.test.exit
+	@perl -p -e 's|\Q$(SRC_PATH)\E/||g' $*.test.err | diff $(SRC_PATH)/$*.err -
+	@diff $(SRC_PATH)/$*.exit $*.test.exit
 
 .PHONY: check-tests/qapi-schema/doc-good.texi
 check-tests/qapi-schema/doc-good.texi: tests/qapi-schema/doc-good.test.texi

Signature · 1 line

2.14.3

Eric Blake

2018-02-09 23:40 UTC #7 lore raw

Re: [Qemu-devel] [PATCH v5 06/14] qapi: remove '-q' arg to diff when comparing QAPI output

Quoted 17 lines · Daniel P. Berrange

When the qapi schema tests fail they merely print that the expected output didn't match the actual output. This is largely useless when trying diagnose what went wrong. Removing the '-q' arg to diff means that it is still silent on successful tests, but when it fails we'll see details of the incorrect output.
Reviewed-by Eric Blake <[email protected]>
Signed-off-by Daniel P. Berrange <[email protected]>
---
  tests/Makefile.include | 6 +++---
  1 file changed, 3 insertions(+), 3 deletions(-)
tests/Makefile.include +0 -0
index 39a4b5359d..d65fb4e1b3 100644

tests/Makefile.include $(patsubst %, check-%, $(check-qapi-schema-y)): check-%.json: $(SRC_PATH)/%.json · line 911

Quoted 5 lines

tests/Makefile.include +1 -1

@@ -908,10 +908,10 @@ $(patsubst %, check-%, $(check-qapi-schema-y)): check-%.json: $(SRC_PATH)/%.json
  		$^ >$*.test.out 2>$*.test.err; \
  		echo $$? >$*.test.exit, \
  		"TEST","$*.out")
-	@diff -q $(SRC_PATH)/$*.out $*.test.out
+	@diff $(SRC_PATH)/$*.out $*.test.out

And just now I'm noticing that this produces an ed-script diff (which is useless), instead of a context diff. We want -c. I guess I'll be submitting the obvious followup patch.

Signature · 3 lines

Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

Markus Armbruster

2018-02-10 06:27 UTC #8 lore raw

Re: [Qemu-devel] [PATCH v5 06/14] qapi: remove '-q' arg to diff when comparing QAPI output

Quoted 13 lines · Eric Blake

Quoted 12 lines · Daniel P. Berrange
When the qapi schema tests fail they merely print that the expected output didn't match the actual output. This is largely useless when trying diagnose what went wrong. Removing the '-q' arg to diff means that it is still silent on successful tests, but when it fails we'll see details of the incorrect output.
Reviewed-by Eric Blake <[email protected]>
Signed-off-by Daniel P. Berrange <[email protected]>
---
  tests/Makefile.include | 6 +++---
  1 file changed, 3 insertions(+), 3 deletions(-)

Quoted 14 lines

tests/Makefile.include $(patsubst %, check-%, $(check-qapi-schema-y)): check-%.json: $(SRC_PATH)/%.json · line 911
Quoted 10 lines
tests/Makefile.include +1 -1
index 39a4b5359d..d65fb4e1b3 100644
@@ -908,10 +908,10 @@ $(patsubst %, check-%, $(check-qapi-schema-y)): check-%.json: $(SRC_PATH)/%.json
  		$^ >$*.test.out 2>$*.test.err; \
  		echo $$? >$*.test.exit, \
  		"TEST","$*.out")
-	@diff -q $(SRC_PATH)/$*.out $*.test.out
+	@diff $(SRC_PATH)/$*.out $*.test.out
And just now I'm noticing that this produces an ed-script diff (which is useless), instead of a context diff. We want -c. I guess I'll be submitting the obvious followup patch.

I'd very much prefer -u.

There's a diff -q left a few lines down.

Daniel P. Berrangé

author

2018-02-12 16:46 UTC #9 lore raw

Re: [Qemu-devel] [PATCH v5 06/14] qapi: remove '-q' arg to diff when comparing QAPI output

In reply to Eric Blake

Quoted 13 lines · Eric Blake

Quoted 12 lines · Daniel P. Berrange
When the qapi schema tests fail they merely print that the expected output didn't match the actual output. This is largely useless when trying diagnose what went wrong. Removing the '-q' arg to diff means that it is still silent on successful tests, but when it fails we'll see details of the incorrect output.
Reviewed-by Eric Blake <[email protected]>
Signed-off-by Daniel P. Berrange <[email protected]>
---
  tests/Makefile.include | 6 +++---
  1 file changed, 3 insertions(+), 3 deletions(-)

Quoted 14 lines

tests/Makefile.include $(patsubst %, check-%, $(check-qapi-schema-y)): check-%.json: $(SRC_PATH)/%.json · line 911
Quoted 10 lines
tests/Makefile.include +1 -1
index 39a4b5359d..d65fb4e1b3 100644
@@ -908,10 +908,10 @@ $(patsubst %, check-%, $(check-qapi-schema-y)): check-%.json: $(SRC_PATH)/%.json
  		$^ >$*.test.out 2>$*.test.err; \
  		echo $$? >$*.test.exit, \
  		"TEST","$*.out")
-	@diff -q $(SRC_PATH)/$*.out $*.test.out
+	@diff $(SRC_PATH)/$*.out $*.test.out
And just now I'm noticing that this produces an ed-script diff (which is useless), instead of a context diff. We want -c. I guess I'll be submitting the obvious followup patch.

Well not entirely useless - it showed me the problems that we happening with the py3 port, but yeah, a saner diff format would be nice :-)

Regards,
Daniel

Signature · 3 lines

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Daniel P. Berrange

author

2018-01-16 13:44 UTC #10 lore raw

PATCH v5 7/14 qapi: ensure stable sort ordering when checking QAPI entities

In reply to Daniel P. Berrange

Some early python 3.x versions will have different default ordering when calling the 'values()' method on a dict, compared to python 2.x and later 3.x versions. Explicitly sort the items to get a stable ordering.

Reviewed-by Philippe Mathieu-Daudé <[email protected]>

Signed-off-by Daniel P. Berrange <[email protected]>

---
 scripts/qapi.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

scripts/qapi.py +1 -1

index 1fdd189c0d..58f995b07f 100644
@@ -1678,7 +1678,7 @@ class QAPISchema(object):
                 assert False
 
     def check(self):
-        for ent in self._entity_dict.values():
+        for (name, ent) in sorted(self._entity_dict.items()):
             ent.check(self)
 
     def visit(self, visitor):

Signature · 1 line

2.14.3

Daniel P. Berrange

author

2018-01-16 13:44 UTC #11 lore raw

PATCH v5 8/14 qapi: force a UTF-8 locale for running Python

In reply to Daniel P. Berrange

Python2 did not validate locale correctness when reading input data, so would happily read UTF-8 data in non-UTF-8 locales. Python3 is strict so if you try to read UTF-8 data in the C locale, it will raise an error for any UTF-8 bytes that aren't representable in 7-bit ascii encoding. e.g.

UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 54: ordinal not in range(128) Traceback (most recent call last):
File "/tmp/qemu-test/src/scripts/qapi-commands.py", line 317, in <module>
schema = QAPISchema(input_file)
File "/tmp/qemu-test/src/scripts/qapi.py", line 1468, in __init__
parser = QAPISchemaParser(open(fname, 'r'))
File "/tmp/qemu-test/src/scripts/qapi.py", line 301, in __init__
previously_included)
File "/tmp/qemu-test/src/scripts/qapi.py", line 348, in _include
exprs_include = QAPISchemaParser(fobj, previously_included, info)
File "/tmp/qemu-test/src/scripts/qapi.py", line 271, in __init__
self.src = fp.read()
File "/usr/lib64/python3.5/encodings/ascii.py", line 26, in decode
return codecs.ascii_decode(input, self.errors)[0]

More background on this can be seen in

https://www.python.org/dev/peps/pep-0538/

Many distros support a new C.UTF-8 locale that is like the C locale, but with UTF-8 instead of 7-bit ASCII. That is not entirely portable though. This patch thus sets the LANG to "C", but overrides LC_CTYPE to be en_US.UTF-8 locale. This gets us pretty close to C.UTF-8, but in a way that should be portable to everywhere QEMU builds.

This patch only forces UTF-8 for QAPI scripts, since that is the one showing the immediate error under Python3 with C locale, but potentially we ought to force this for all python scripts used in the build process.

Signed-off-by Daniel P. Berrange <[email protected]>

---
 Makefile | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

Makefile +12 ~~-10~~

index d86ecd2dd4..63767bb11f 100644
@@ -17,6 +17,8 @@ ifneq ($(wildcard config-host.mak),)
 all:
 include config-host.mak
 
+PYTHON_UTF8 = LC_ALL= LANG=C LC_CTYPE=en_US.UTF-8 $(PYTHON)
+
 git-submodule-update:
 
 .PHONY: git-submodule-update

@@ -471,17 +473,17 @@ qapi-py = $(SRC_PATH)/scripts/qapi.py $(SRC_PATH)/scripts/ordereddict.py
 
 qga/qapi-generated/qga-qapi-types.c qga/qapi-generated/qga-qapi-types.h :\
 $(SRC_PATH)/qga/qapi-schema.json $(SRC_PATH)/scripts/qapi-types.py $(qapi-py)
-	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py \
+	$(call quiet-command,$(PYTHON_UTF8) $(SRC_PATH)/scripts/qapi-types.py \
 		$(gen-out-type) -o qga/qapi-generated -p "qga-" $<, \
 		"GEN","$@")
 qga/qapi-generated/qga-qapi-visit.c qga/qapi-generated/qga-qapi-visit.h :\
 $(SRC_PATH)/qga/qapi-schema.json $(SRC_PATH)/scripts/qapi-visit.py $(qapi-py)
-	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py \
+	$(call quiet-command,$(PYTHON_UTF8) $(SRC_PATH)/scripts/qapi-visit.py \
 		$(gen-out-type) -o qga/qapi-generated -p "qga-" $<, \
 		"GEN","$@")
 qga/qapi-generated/qga-qmp-commands.h qga/qapi-generated/qga-qmp-marshal.c :\
 $(SRC_PATH)/qga/qapi-schema.json $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py)
-	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py \
+	$(call quiet-command,$(PYTHON_UTF8) $(SRC_PATH)/scripts/qapi-commands.py \
 		$(gen-out-type) -o qga/qapi-generated -p "qga-" $<, \
 		"GEN","$@")

@@ -502,27 +504,27 @@ qapi-modules = $(SRC_PATH)/qapi-schema.json $(SRC_PATH)/qapi/common.json \
 
 qapi-types.c qapi-types.h :\
 $(qapi-modules) $(SRC_PATH)/scripts/qapi-types.py $(qapi-py)
-	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py \
+	$(call quiet-command,$(PYTHON_UTF8) $(SRC_PATH)/scripts/qapi-types.py \
 		$(gen-out-type) -o "." -b $<, \
 		"GEN","$@")
 qapi-visit.c qapi-visit.h :\
 $(qapi-modules) $(SRC_PATH)/scripts/qapi-visit.py $(qapi-py)
-	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-visit.py \
+	$(call quiet-command,$(PYTHON_UTF8) $(SRC_PATH)/scripts/qapi-visit.py \
 		$(gen-out-type) -o "." -b $<, \
 		"GEN","$@")
 qapi-event.c qapi-event.h :\
 $(qapi-modules) $(SRC_PATH)/scripts/qapi-event.py $(qapi-py)
-	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-event.py \
+	$(call quiet-command,$(PYTHON_UTF8) $(SRC_PATH)/scripts/qapi-event.py \
 		$(gen-out-type) -o "." $<, \
 		"GEN","$@")
 qmp-commands.h qmp-marshal.c :\
 $(qapi-modules) $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py)
-	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py \
+	$(call quiet-command,$(PYTHON_UTF8) $(SRC_PATH)/scripts/qapi-commands.py \
 		$(gen-out-type) -o "." $<, \
 		"GEN","$@")
 qmp-introspect.h qmp-introspect.c :\
 $(qapi-modules) $(SRC_PATH)/scripts/qapi-introspect.py $(qapi-py)
-	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-introspect.py \
+	$(call quiet-command,$(PYTHON_UTF8) $(SRC_PATH)/scripts/qapi-introspect.py \
 		$(gen-out-type) -o "." $<, \
 		"GEN","$@")

@@ -792,10 +794,10 @@ qemu-img-cmds.texi: $(SRC_PATH)/qemu-img-cmds.hx $(SRC_PATH)/scripts/hxtool
 docs/interop/qemu-qmp-qapi.texi docs/interop/qemu-ga-qapi.texi: $(SRC_PATH)/scripts/qapi2texi.py $(qapi-py)
 
 docs/interop/qemu-qmp-qapi.texi: $(qapi-modules)
-	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi2texi.py $< > $@,"GEN","$@")
+	$(call quiet-command,$(PYTHON_UTF8) $(SRC_PATH)/scripts/qapi2texi.py $< > $@,"GEN","$@")
 
 docs/interop/qemu-ga-qapi.texi: $(SRC_PATH)/qga/qapi-schema.json
-	$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi2texi.py $< > $@,"GEN","$@")
+	$(call quiet-command,$(PYTHON_UTF8) $(SRC_PATH)/scripts/qapi2texi.py $< > $@,"GEN","$@")
 
 qemu.1: qemu-doc.texi qemu-options.texi qemu-monitor.texi qemu-monitor-info.texi
 qemu.1: qemu-option-trace.texi

Signature · 1 line

2.14.3

Eric Blake

Reviewed-by on v5 8/14

2018-01-16 14:45 UTC #12 lore raw

Re: [Qemu-devel] [PATCH v5 08/14] qapi: force a UTF-8 locale for running Python

Quoted 14 lines · Daniel P. Berrange

Python2 did not validate locale correctness when reading input data, so would happily read UTF-8 data in non-UTF-8 locales. Python3 is strict so if you try to read UTF-8 data in the C locale, it will raise an error for any UTF-8 bytes that aren't representable in 7-bit ascii encoding. e.g.
Many distros support a new C.UTF-8 locale that is like the C locale, but with UTF-8 instead of 7-bit ASCII. That is not entirely portable though. This patch thus sets the LANG to "C", but overrides LC_CTYPE to be en_US.UTF-8 locale. This gets us pretty close to C.UTF-8, but in a way that should be portable to everywhere QEMU builds.

Quoted 8 lines

This patch only forces UTF-8 for QAPI scripts, since that is the one showing the immediate error under Python3 with C locale, but potentially we ought to force this for all python scripts used in the build process.
Signed-off-by Daniel P. Berrange <[email protected]>
---
 Makefile | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

Reviewed-by Eric Blake <[email protected]>

Signature · 3 lines

Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

Daniel P. Berrange

author

2018-01-16 13:44 UTC #13 lore raw

PATCH v5 9/14 scripts: ensure signrom treats data as bytes

In reply to Daniel P. Berrange

Reviewed-by Philippe Mathieu-Daudé <[email protected]>

Signed-off-by Daniel P. Berrange <[email protected]>

---
 scripts/signrom.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

scripts/signrom.py +2 -2

index d1dabe0240..0497a1c32e 100644
@@ -18,7 +18,7 @@ fin = open(sys.argv[1], 'rb')
 fout = open(sys.argv[2], 'wb')
 
 magic = fin.read(2)
-if magic != '\x55\xaa':
+if magic != b'\x55\xaa':
     sys.exit("%s: option ROM does not begin with magic 55 aa" % sys.argv[1])
 
 size_byte = ord(fin.read(1))

@@ -33,7 +33,7 @@ elif len(data) < size:
     # Add padding if necessary, rounding the whole input to a multiple of
     # 512 bytes according to the third byte of the input.
     # size-1 because a final byte is added below to store the checksum.
-    data = data.ljust(size-1, '\0')
+    data = data.ljust(size-1, b'\0')
 else:
     if ord(data[-1:]) != 0:
         sys.stderr.write('WARNING: ROM includes nonzero checksum\n')

Signature · 1 line

2.14.3

Daniel P. Berrange

author

2018-01-16 13:44 UTC #14 lore raw

PATCH v5 10/14 configure: allow use of python 3

In reply to Daniel P. Berrange

Signed-off-by Daniel P. Berrange <[email protected]>

---
 configure | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

configure +2 -3

index b272a0336b..60b99f45f6 100755
@@ -1598,9 +1598,8 @@ fi
 
 # Note that if the Python conditional here evaluates True we will exit
 # with status 1 which is a shell 'false' value.
-if ! $python -c 'import sys; sys.exit(sys.version_info < (2,6) or sys.version_info >= (3,))'; then
-  error_exit "Cannot use '$python', Python 2.6 or later is required." \
-      "Note that Python 3 or later is not yet supported." \
+if ! $python -c 'import sys; sys.exit(sys.version_info < (2,6))'; then
+  error_exit "Cannot use '$python', Python 2 >= 2.6 or Python 3 is required." \
       "Use --python=/path/to/python to specify a supported Python."
 fi

Signature · 1 line

2.14.3

Eric Blake

Reviewed-by on v5 10/14

2018-01-16 14:52 UTC #15 lore raw

Re: [Qemu-devel] [PATCH v5 10/14] configure: allow use of python 3

Quoted 5 lines · Daniel P. Berrange

Signed-off-by Daniel P. Berrange <[email protected]>
---
 configure | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

Reviewed-by Eric Blake <[email protected]>

Presumably, you tested with this patch first in the series to come up with patches 1-9 ;)

Quoted 17 lines

configure +2 -3

index b272a0336b..60b99f45f6 100755
@@ -1598,9 +1598,8 @@ fi
 
 # Note that if the Python conditional here evaluates True we will exit
 # with status 1 which is a shell 'false' value.
-if ! $python -c 'import sys; sys.exit(sys.version_info < (2,6) or sys.version_info >= (3,))'; then
-  error_exit "Cannot use '$python', Python 2.6 or later is required." \
-      "Note that Python 3 or later is not yet supported." \
+if ! $python -c 'import sys; sys.exit(sys.version_info < (2,6))'; then
+  error_exit "Cannot use '$python', Python 2 >= 2.6 or Python 3 is required." \
       "Use --python=/path/to/python to specify a supported Python."
 fi

Signature · 3 lines

Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

Daniel P. Berrange

author

2018-01-16 13:44 UTC #16 lore raw

PATCH v5 11/14 input: add missing JIS keys to virtio input

In reply to Daniel P. Berrange

From: Miika S <[email protected]>

keycodemapdb updated to add the QKeyCodes muhenkan and katakanahiragana

Signed-off-by Miika S <[email protected]>

---
 hw/input/virtio-input-hid.c | 7 +++++++
 qapi/ui.json                | 5 ++++-
 ui/keycodemapdb             | 2 +-
 3 files changed, 12 insertions(+), 2 deletions(-)

hw/input/virtio-input-hid.c +7 -0

index e78faec0b1..9628d289f9 100644
@@ -139,6 +139,13 @@ static const unsigned int keymap_qcode[Q_KEY_CODE__MAX] = {
     [Q_KEY_CODE_META_L]              = KEY_LEFTMETA,
     [Q_KEY_CODE_META_R]              = KEY_RIGHTMETA,
     [Q_KEY_CODE_MENU]                = KEY_MENU,
+
+    [Q_KEY_CODE_MUHENKAN]            = KEY_MUHENKAN,
+    [Q_KEY_CODE_HENKAN]              = KEY_HENKAN,
+    [Q_KEY_CODE_KATAKANAHIRAGANA]    = KEY_KATAKANAHIRAGANA,
+    [Q_KEY_CODE_COMPOSE]             = KEY_COMPOSE,
+    [Q_KEY_CODE_RO]                  = KEY_RO,
+    [Q_KEY_CODE_YEN]                 = KEY_YEN,
 };
 
 static const unsigned int keymap_button[INPUT_BUTTON__MAX] = {

qapi/ui.json +4 -1

index 07b468f625..d6679aa8f5 100644
@@ -748,6 +748,9 @@
 # @ac_bookmarks: since 2.10
 # altgr, altgr_r: dropped in 2.10
 #
+# @muhenkan: since 2.12
+# @katakanahiragana: since 2.12
+#
 # 'sysrq' was mistakenly added to hack around the fact that
 # the ps2 driver was not generating correct scancodes sequences
 # when 'alt+print' was pressed. This flaw is now fixed and the

@@ -775,7 +778,7 @@
             'left', 'up', 'down', 'right', 'insert', 'delete', 'stop', 'again',
             'props', 'undo', 'front', 'copy', 'open', 'paste', 'find', 'cut',
             'lf', 'help', 'meta_l', 'meta_r', 'compose', 'pause',
-            'ro', 'hiragana', 'henkan', 'yen',
+            'ro', 'hiragana', 'henkan', 'yen', 'muhenkan', 'katakanahiragana',
             'kp_comma', 'kp_equals', 'power', 'sleep', 'wake',
             'audionext', 'audioprev', 'audiostop', 'audioplay', 'audiomute',
             'volumeup', 'volumedown', 'mediaselect',

ui/keycodemapdb +1 -1

index 10739aa260..05dad417e9 160000
@@ -1 +1 @@
-Subproject commit 10739aa26051a5d49d88132604539d3ed085e72e
+Subproject commit 05dad417e9d0b37ee1fba33056d91a6b734b3357

Signature · 1 line

2.14.3

Eric Blake

Reviewed-by on v5 11/14

2018-01-16 14:55 UTC #17 lore raw

Re: [Qemu-devel] [PATCH v5 11/14] input: add missing JIS keys to virtio input

Quoted 5 lines · Daniel P. Berrange

From: Miika S <[email protected]>
keycodemapdb updated to add the QKeyCodes muhenkan and katakanahiragana
Signed-off-by Miika S <[email protected]>

Not a typical legal name (since a Signed-off-by is a legal statement for tracing copyright restrictions, using an actual name instead of a pseudonym is preferable; however, we have examples of commits in the past that did not do so, so I'm not going to insist on this one).

Quoted 6 lines

---
 hw/input/virtio-input-hid.c | 7 +++++++
 qapi/ui.json                | 5 ++++-
 ui/keycodemapdb             | 2 +-
 3 files changed, 12 insertions(+), 2 deletions(-)

Reviewed-by Eric Blake <[email protected]>

Signature · 3 lines

Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

Eduardo Habkost

2018-02-01 20:52 UTC #18 lore raw

Re: [Qemu-devel] [PATCH v5 11/14] input: add missing JIS keys to virtio input

In reply to Daniel P. Berrange

Quoted 5 lines · Daniel P. Berrange

From: Miika S <[email protected]>
keycodemapdb updated to add the QKeyCodes muhenkan and katakanahiragana
Signed-off-by Miika S <[email protected]>

Oops, this conflicts with:

commit ae6b06ab655b21c19b234ce3422f694d11a013e0

Author: Daniel P. Berrange <[email protected]>
Date:   Wed Jan 17 16:41:18 2018 +0000

hw: convert virtio-input-hid device to keycodemapdb

[...]

Patch 11/14 and 12/14 need to be redone. I'm removing patches 11-14 from python-next until this is sorted out.

Signature · 1 line

Eduardo

Daniel P. Berrangé

author

2018-02-02 16:54 UTC #19 lore raw

Re: [Qemu-devel] [PATCH v5 11/14] input: add missing JIS keys to virtio input

Quoted 13 lines · Eduardo Habkost

Quoted 5 lines · Daniel P. Berrange
From: Miika S <[email protected]>
keycodemapdb updated to add the QKeyCodes muhenkan and katakanahiragana
Signed-off-by Miika S <[email protected]>
Oops, this conflicts with:
commit ae6b06ab655b21c19b234ce3422f694d11a013e0
Author: Daniel P. Berrange <[email protected]>
Date:   Wed Jan 17 16:41:18 2018 +0000

Quoted 6 lines

hw: convert virtio-input-hid device to keycodemapdb
[...]
Patch 11/14 and 12/14 need to be redone. I'm removing patches 11-14 from python-next until this is sorted out.

You can literally just drop the patch chunk which touches the hw/input/virtio-input-hid.c file entirely, as that table is now auto-generated. I can resend the series with that if you prefer though ?

Regards,
Daniel

Signature · 3 lines

|: https://berrange.com      -o-    https://www.flickr.com/photos/dberrange :|
|: https://libvirt.org         -o-            https://fstop138.berrange.com :|
|: https://entangle-photo.org    -o-    https://www.instagram.com/dberrange :|

Eduardo Habkost

2018-02-02 14:52 UTC #20 lore raw

Re: [Qemu-devel] [PATCH v5 11/14] input: add missing JIS keys to virtio input

Quoted 18 lines · Daniel P. Berrangé

Quoted 17 lines · Eduardo Habkost
Quoted 5 lines · Daniel P. Berrange
From: Miika S <[email protected]>
keycodemapdb updated to add the QKeyCodes muhenkan and katakanahiragana
Signed-off-by Miika S <[email protected]>
Oops, this conflicts with:
commit ae6b06ab655b21c19b234ce3422f694d11a013e0
Author: Daniel P. Berrange <[email protected]>
Date:   Wed Jan 17 16:41:18 2018 +0000
hw: convert virtio-input-hid device to keycodemapdb
[...]

Quoted 7 lines

Quoted 2 lines
Patch 11/14 and 12/14 need to be redone. I'm removing patches 11-14 from python-next until this is sorted out.
You can literally just drop the patch chunk which touches the hw/input/virtio-input-hid.c file entirely, as that table is now auto-generated. I can resend the series with that if you prefer though ?

I will do that when applying the patch. Thanks!

Signature · 1 line

Eduardo

Daniel P. Berrange

author

2018-01-16 13:44 UTC #21 lore raw

PATCH v5 12/14 ui: update keycodemapdb to get py3 fixes

In reply to Daniel P. Berrange

Signed-off-by Daniel P. Berrange <[email protected]>

---
 ui/keycodemapdb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

ui/keycodemapdb +1 -1

index 05dad417e9..6b3d716e2b 160000
@@ -1 +1 @@
-Subproject commit 05dad417e9d0b37ee1fba33056d91a6b734b3357
+Subproject commit 6b3d716e2b6472eb7189d3220552280ef3d832ce

Signature · 1 line

2.14.3

Eric Blake

Reviewed-by on v5 12/14

2018-01-16 14:57 UTC #22 lore raw

Re: [Qemu-devel] [PATCH v5 12/14] ui: update keycodemapdb to get py3 fixes

Quoted 5 lines · Daniel P. Berrange

Signed-off-by Daniel P. Berrange <[email protected]>
---
 ui/keycodemapdb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

When posting submodule diffs, you can do:

$ git submodule summary ui/keycodemapdb HEAD^

to come up with what the change actually represents. (It's annoying that git submodules aren't more user-friendly)

ui/keycodemapdb line 1

Quoted 8 lines

ui/keycodemapdb +1 -1

index 05dad417e9..6b3d716e2b 160000
@@ -1 +1 @@
-Subproject commit 05dad417e9d0b37ee1fba33056d91a6b734b3357
+Subproject commit 6b3d716e2b6472eb7189d3220552280ef3d832ce

* ui/keycodemapdb 05dad41...6b3d716 (1):

Quoted 1 line

Fix compat with py3 dict keys/values data types

Reviewed-by Eric Blake <[email protected]>

Signature · 3 lines

Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

Daniel P. Berrange

author

2018-01-16 13:44 UTC #23 lore raw

PATCH v5 13/14 travis: improve python version test coverage

In reply to Daniel P. Berrange

Currently travis declares ancient python 2.4 is desired. Update that to 2.6 which is the oldest version any targetted distros still needs. If we just list a python 3 version at the top level this will double the number of travis jobs we run which is unreasonable.

So arbitrarily pick the clang test matrix entries to build with python 3.0 and 3.6, to extend coverage of python versions, without increasing job count or build time.

Signed-off-by Daniel P. Berrange <[email protected]>

---
 .travis.yml | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

.travis.yml +9 -5

index f583839755..708c886017 100644
@@ -1,7 +1,7 @@
 sudo: false
 language: c
 python:
-  - "2.4"
+  - "2.6"
 compiler:
   - gcc
 cache: ccache

@@ -115,15 +115,17 @@ matrix:
         - sudo apt-get build-dep -qq qemu
         - wget -O - http://people.linaro.org/~alex.bennee/qemu-submodule-git-seed.tar.xz | tar -xvJ
         - git submodule update --init --recursive
-    # Trusty System build with latest stable clang
+    # Trusty System build with latest stable clang & python 3.0
     - sudo: required
       addons:
       dist: trusty
       language: generic
       compiler: none
+      python:
+        - "3.0"
       env:
         - COMPILER_NAME=clang CXX=clang++-3.9 CC=clang-3.9
-        - CONFIG="--disable-linux-user --cc=clang-3.9 --cxx=clang++-3.9"
+        - CONFIG="--disable-linux-user --cc=clang-3.9 --cxx=clang++-3.9 --python=/usr/bin/python3"
       before_install:
         - wget -nv -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -
         - sudo apt-add-repository -y 'deb http://llvm.org/apt/trusty llvm-toolchain-trusty-3.9 main'

@@ -134,15 +136,17 @@ matrix:
         - git submodule update --init --recursive
       before_script:
         - ./configure ${CONFIG} || cat config.log
-    # Trusty Linux User build with latest stable clang
+    # Trusty Linux User build with latest stable clang & python 3.6
     - sudo: required
       addons:
       dist: trusty
       language: generic
       compiler: none
+      python:
+        - "3.6"
       env:
         - COMPILER_NAME=clang CXX=clang++-3.9 CC=clang-3.9
-        - CONFIG="--disable-system --cc=clang-3.9 --cxx=clang++-3.9"
+        - CONFIG="--disable-system --cc=clang-3.9 --cxx=clang++-3.9 --python=/usr/bin/python3"
       before_install:
         - wget -nv -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -
         - sudo apt-add-repository -y 'deb http://llvm.org/apt/trusty llvm-toolchain-trusty-3.9 main'

Signature · 1 line

2.14.3

Philippe Mathieu-Daudé

2018-05-31 16:09 UTC #24 lore raw

Re: [Qemu-devel] [PATCH v5 13/14] travis: improve python version test coverage

Hi Daniel,

Quoted 8 lines · Daniel P. Berrange

Currently travis declares ancient python 2.4 is desired. Update that to 2.6 which is the oldest version any targetted distros still needs. If we just list a python 3 version at the top level this will double the number of travis jobs we run which is unreasonable.
So arbitrarily pick the clang test matrix entries to build with python 3.0 and 3.6, to extend coverage of python versions, without increasing job count or build time.

I'm seeing 3.0 builds taking the double time than 3.6 builds (and triggering the 50min timeout), any idea what could cause this huge difference?

Quoted 60 lines

Signed-off-by Daniel P. Berrange <[email protected]>

---
 .travis.yml | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

.travis.yml +9 -5

index f583839755..708c886017 100644
@@ -1,7 +1,7 @@
 sudo: false
 language: c
 python:
-  - "2.4"
+  - "2.6"
 compiler:
   - gcc
 cache: ccache

@@ -115,15 +115,17 @@ matrix:
         - sudo apt-get build-dep -qq qemu
         - wget -O - http://people.linaro.org/~alex.bennee/qemu-submodule-git-seed.tar.xz | tar -xvJ
         - git submodule update --init --recursive
-    # Trusty System build with latest stable clang
+    # Trusty System build with latest stable clang & python 3.0
     - sudo: required
       addons:
       dist: trusty
       language: generic
       compiler: none
+      python:
+        - "3.0"
       env:
         - COMPILER_NAME=clang CXX=clang++-3.9 CC=clang-3.9
-        - CONFIG="--disable-linux-user --cc=clang-3.9 --cxx=clang++-3.9"
+        - CONFIG="--disable-linux-user --cc=clang-3.9 --cxx=clang++-3.9 --python=/usr/bin/python3"
       before_install:
         - wget -nv -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -
         - sudo apt-add-repository -y 'deb http://llvm.org/apt/trusty llvm-toolchain-trusty-3.9 main'

@@ -134,15 +136,17 @@ matrix:
         - git submodule update --init --recursive
       before_script:
         - ./configure ${CONFIG} || cat config.log
-    # Trusty Linux User build with latest stable clang
+    # Trusty Linux User build with latest stable clang & python 3.6
     - sudo: required
       addons:
       dist: trusty
       language: generic
       compiler: none
+      python:
+        - "3.6"
       env:
         - COMPILER_NAME=clang CXX=clang++-3.9 CC=clang-3.9
-        - CONFIG="--disable-system --cc=clang-3.9 --cxx=clang++-3.9"
+        - CONFIG="--disable-system --cc=clang-3.9 --cxx=clang++-3.9 --python=/usr/bin/python3"
       before_install:
         - wget -nv -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -
         - sudo apt-add-repository -y 'deb http://llvm.org/apt/trusty llvm-toolchain-trusty-3.9 main'

Daniel P. Berrangé

author

2018-06-01 11:47 UTC #25 lore raw

Re: [Qemu-devel] [PATCH v5 13/14] travis: improve python version test coverage

Quoted 8 lines · Philippe Mathieu-Daudé

Hi Daniel,
Quoted 5 lines · Daniel P. Berrange
Currently travis declares ancient python 2.4 is desired. Update that to 2.6 which is the oldest version any targetted distros still needs. If we just list a python 3 version at the top level this will double the number of travis jobs we run which is unreasonable.

Quoted 7 lines

Quoted 3 lines
So arbitrarily pick the clang test matrix entries to build with python 3.0 and 3.6, to extend coverage of python versions, without increasing job count or build time.
I'm seeing 3.0 builds taking the double time than 3.6 builds (and triggering the 50min timeout), any idea what could cause this huge difference?

Ouch, that's real bad. I don't have any bright ideas, other than fact that its a .0 release, so perhaps it was just really bad.

Wonder at which 3.x release it got "fast"

Quoted 53 lines

Signed-off-by Daniel P. Berrange <[email protected]>

---
 .travis.yml | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

.travis.yml +8 -4

index f583839755..708c886017 100644
@@ -1,7 +1,7 @@
 sudo: false
 language: c
 python:
-  - "2.4"
+  - "2.6"
 compiler:
   - gcc
 cache: ccache

@@ -115,15 +115,17 @@ matrix:
         - sudo apt-get build-dep -qq qemu
         - wget -O - http://people.linaro.org/~alex.bennee/qemu-submodule-git-seed.tar.xz | tar -xvJ
         - git submodule update --init --recursive
-    # Trusty System build with latest stable clang
+    # Trusty System build with latest stable clang & python 3.0
     - sudo: required
       addons:
       dist: trusty
       language: generic
       compiler: none
+      python:
+        - "3.0"
       env:
         - COMPILER_NAME=clang CXX=clang++-3.9 CC=clang-3.9
-        - CONFIG="--disable-linux-user --cc=clang-3.9 --cxx=clang++-3.9"
+        - CONFIG="--disable-linux-user --cc=clang-3.9 --cxx=clang++-3.9 --python=/usr/bin/python3"
       before_install:
         - wget -nv -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -
         - sudo apt-add-repository -y 'deb http://llvm.org/apt/trusty llvm-toolchain-trusty-3.9 main'

@@ -134,15 +136,17 @@ matrix:
         - git submodule update --init --recursive
       before_script:
         - ./configure ${CONFIG} || cat config.log
-    # Trusty Linux User build with latest stable clang
+    # Trusty Linux User build with latest stable clang & python 3.6
     - sudo: required
       addons:
       dist: trusty
       language: generic
       compiler: none
+      python:
+        - "3.6"

Quoted 8 lines

.travis.yml matrix: · line 152

Quoted 8 lines

.travis.yml +1 -1

       env:
         - COMPILER_NAME=clang CXX=clang++-3.9 CC=clang-3.9
-        - CONFIG="--disable-system --cc=clang-3.9 --cxx=clang++-3.9"
+        - CONFIG="--disable-system --cc=clang-3.9 --cxx=clang++-3.9 --python=/usr/bin/python3"
       before_install:
         - wget -nv -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -
         - sudo apt-add-repository -y 'deb http://llvm.org/apt/trusty llvm-toolchain-trusty-3.9 main'

Regards,
Daniel

Signature · 3 lines

|: https://berrange.com      -o-    https://www.flickr.com/photos/dberrange :|
|: https://libvirt.org         -o-            https://fstop138.berrange.com :|
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Alex Bennée

2018-05-31 20:17 UTC #26 lore raw

Re: [Qemu-devel] [PATCH v5 13/14] travis: improve python version test coverage

In reply to Daniel P. Berrange

Quoted 8 lines · Daniel P. Berrange

Currently travis declares ancient python 2.4 is desired. Update that to 2.6 which is the oldest version any targetted distros still needs. If we just list a python 3 version at the top level this will double the number of travis jobs we run which is unreasonable.
So arbitrarily pick the clang test matrix entries to build with python 3.0 and 3.6, to extend coverage of python versions, without increasing job count or build time.

I'm sorry I didn't get to this when you posted it. However I'd like to know what the minimum build configuration we can get which will still ensure that the python is exercised? Would a TARGET_LIST="x86-64-softmmu" be good enough?

Quoted 49 lines

Signed-off-by Daniel P. Berrange <[email protected]>

---
 .travis.yml | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

.travis.yml +6 -4

index f583839755..708c886017 100644
@@ -1,7 +1,7 @@
 sudo: false
 language: c
 python:
-  - "2.4"
+  - "2.6"
 compiler:
   - gcc
 cache: ccache

@@ -115,15 +115,17 @@ matrix:
         - sudo apt-get build-dep -qq qemu
         - wget -O - http://people.linaro.org/~alex.bennee/qemu-submodule-git-seed.tar.xz | tar -xvJ
         - git submodule update --init --recursive
-    # Trusty System build with latest stable clang
+    # Trusty System build with latest stable clang & python 3.0
     - sudo: required
       addons:
       dist: trusty
       language: generic
       compiler: none
+      python:
+        - "3.0"
       env:
         - COMPILER_NAME=clang CXX=clang++-3.9 CC=clang-3.9
-        - CONFIG="--disable-linux-user --cc=clang-3.9 --cxx=clang++-3.9"
+        - CONFIG="--disable-linux-user --cc=clang-3.9 --cxx=clang++-3.9 --python=/usr/bin/python3"
       before_install:
         - wget -nv -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -
         - sudo apt-add-repository -y 'deb http://llvm.org/apt/trusty llvm-toolchain-trusty-3.9 main'

@@ -134,15 +136,17 @@ matrix:
         - git submodule update --init --recursive
       before_script:
         - ./configure ${CONFIG} || cat config.log
-    # Trusty Linux User build with latest stable clang
+    # Trusty Linux User build with latest stable clang & python 3.6
     - sudo: required
       addons:
       dist: trusty
       language: generic

.travis.yml matrix: · line 152

Quoted 10 lines

.travis.yml +3 -1

       compiler: none
+      python:
+        - "3.6"
       env:
         - COMPILER_NAME=clang CXX=clang++-3.9 CC=clang-3.9
-        - CONFIG="--disable-system --cc=clang-3.9 --cxx=clang++-3.9"
+        - CONFIG="--disable-system --cc=clang-3.9 --cxx=clang++-3.9 --python=/usr/bin/python3"
       before_install:
         - wget -nv -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -
         - sudo apt-add-repository -y 'deb http://llvm.org/apt/trusty llvm-toolchain-trusty-3.9 main'

--
Alex Bennée

Daniel P. Berrangé

author

2018-06-01 11:48 UTC #27 lore raw

Re: [Qemu-devel] [PATCH v5 13/14] travis: improve python version test coverage

Quoted 8 lines · Alex Bennée

Quoted 5 lines · Daniel P. Berrange
Currently travis declares ancient python 2.4 is desired. Update that to 2.6 which is the oldest version any targetted distros still needs. If we just list a python 3 version at the top level this will double the number of travis jobs we run which is unreasonable.

Quoted 8 lines

Quoted 3 lines
So arbitrarily pick the clang test matrix entries to build with python 3.0 and 3.6, to extend coverage of python versions, without increasing job count or build time.
I'm sorry I didn't get to this when you posted it. However I'd like to know what the minimum build configuration we can get which will still ensure that the python is exercised? Would a TARGET_LIST="x86-64-softmmu" be good enough?

Most important stuff to exercise is the QAPI code generator and the trace tool backends, as those the main python pieces users will hit during build. So yes, it is sufficient to just have 1 target arch

Regards,
Daniel

Signature · 3 lines

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|: https://libvirt.org         -o-            https://fstop138.berrange.com :|
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Daniel P. Berrange

author

2018-01-16 13:44 UTC #28 lore raw

PATCH v5 14/14 docker: change Fedora images to run with python3

In reply to Daniel P. Berrange

Fedora has switched to Python 3 by default, so it makes sense to use that for testing QEMU builds, so we get testing of Python 3 compatibility.

Signed-off-by Daniel P. Berrange <[email protected]>

---
 tests/docker/dockerfiles/fedora.docker | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

tests/docker/dockerfiles/fedora.docker +2 -1

index 4b26c3aded..a22fe16157 100644
@@ -1,6 +1,6 @@
 FROM fedora:latest
 ENV PACKAGES \
-    ccache gettext git tar PyYAML sparse flex bison python2 bzip2 hostname \
+    ccache gettext git tar PyYAML sparse flex bison python3 bzip2 hostname \
     glib2-devel pixman-devel zlib-devel SDL-devel libfdt-devel \
     gcc gcc-c++ clang make perl which bc findutils libaio-devel \
     nettle-devel \

@@ -12,6 +12,7 @@ ENV PACKAGES \
     mingw64-gtk2 mingw64-gtk3 mingw64-gnutls mingw64-nettle mingw64-libtasn1 \
     mingw64-libjpeg-turbo mingw64-libpng mingw64-curl mingw64-libssh2 \
     mingw64-bzip2
+ENV QEMU_CONFIGURE_OPTS --python=/usr/bin/python3
 
 RUN dnf install -y $PACKAGES
 RUN rpm -q $PACKAGES | sort > /packages.txt

Signature · 1 line

2.14.3

Eduardo Habkost

2018-01-19 17:10 UTC #29 lore raw

In reply to Daniel P. Berrange

Quoted 9 lines · Daniel P. Berrange

This is an update for my previously posted series:
v2: https://lists.gnu.org/archive/html/qemu-devel/2017-08/msg06528.html
v3: https://lists.gnu.org/archive/html/qemu-devel/2018-01/msg02978.html
v4: https://lists.gnu.org/archive/html/qemu-devel/2018-01/msg03150.html
This series enables some level of CI testing for py3 so that our CI jobs will get coverage of both py2 and py3 builds to avoid bitrot.

I'm queueing this on python-next. Thanks!

Quoted 105 lines

I did a test travis build with py 3.0 and py 3.6 and got success:
https://travis-ci.org/berrange/qemu/builds/328223261
The goal was to achieve the following
  ./configure --python=/usr/bin/python3
  make
  make check
This still requires passing python path to configure explicitly. A further improvement would be for configure to automatically detect a pythjon 3 binary and use it preferentially to python 2.
I have not attempted to fix/validate the block I/O tests. I would expect them to be broken, but easily fixable with the similar kind of scope changes as seen here. I felt it better to tackle that separately to avoid this initial series getting too large.
Although the Python 2 EOL date is 2020, we already have distros which are not shipping Python 2 by default (Fedora >= 26 has dropped Py2 from the default install). Any new releases of long life and/or enterprise distros may well not ship Python 2 given that it would go EOL long before the EOL of the distro itself. IOW QEMU does have a fairly pressing need to be able to support Python 3 for building.
A request for py3 is tracked here:
   https://bugs.launchpad.net/qemu/+bug/1708462
If, rather than supporting py2+py3 in parallel, we wish to entirely drop py2 support, this series would not change significantly
- The "from __future__ import print_function" line can be removed from patch 1.
- The code in patches 2, 3, 4 to deal with changed module names for a few functions can be simpified to only try the py3 location
- The travis + docker jobs would be fully updated to install py3, or delete jobs which can't support py3
Given how little code is removed should we drop py2 support, I don't believe it is in our immediate interests to do this. It would create extra pain for consumers of QEMU, with little benefit to QEMU code maintainance. The key thing is ensuring our travis+docker jobs provide satisfactory automated test coverage for the variety of python versions in the distros we care about targetting.
NB, Patch 11 here is not related to python 3 work - it was just a temporary pre-requisite of pulling in the keycodemapdb update.
Changes since v4:
- Fix broken rebase which accidentally squashed first two patches together
- Unset LC_ALL, and set LANG + LC_CTYPE, instead of only LANG (Eric)
Changes since v3:
- Remove space before '(' in print() function calls (Phillippe)
- Force use of en_US.UTF-8 for QAPI code generation (Patchew)
Changes since v2:
- Pull in fix for keycodemapdb
- Enable testing with Travis
- Enable testing with Fedora Docker images
- Fix for sort ordering to fix 'make check-qapi-schema'
- Fix for signrom data
Daniel P. Berrange (13):
qapi: convert to use python print function instead of statement
qapi: use items()/values() intead of iteritems()/itervalues()
qapi: Use OrderedDict from standard library if available
qapi: adapt to moved location of StringIO module in py3
qapi: Adapt to moved location of 'maketrans' function in py3
qapi: remove '-q' arg to diff when comparing QAPI output
qapi: ensure stable sort ordering when checking QAPI entities
qapi: force a UTF-8 locale for running Python
scripts: ensure signrom treats data as bytes
configure: allow use of python 3
ui: update keycodemapdb to get py3 fixes
travis: improve python version test coverage
docker: change Fedora images to run with python3
Miika S (1):
input: add missing JIS keys to virtio input
 .travis.yml                            | 14 +++++++----
 Makefile                               | 22 +++++++++--------
 configure                              |  5 ++--
 hw/input/virtio-input-hid.c            |  7 ++++++
 qapi/ui.json                           |  5 +++-
 scripts/qapi.py                        | 43 ++++++++++++++++++++--------------
 scripts/qapi2texi.py                   | 11 +++++----
 scripts/signrom.py                     |  4 ++--
 tests/Makefile.include                 |  6 ++---
 tests/docker/dockerfiles/fedora.docker |  3 ++-
 tests/qapi-schema/test-qapi.py         | 43 +++++++++++++++++-----------------
 ui/keycodemapdb                        |  2 +-
 12 files changed, 96 insertions(+), 69 deletions(-)
Signature · 1 line
2.14.3

Signature · 1 line

Eduardo