New: python-flask, python-flask. No module named zlib

https://bugs.busybox.net/show_bug.cgi?id=7971

Summary: python-flask, python-flask. No module named zlib
Product: buildroot
Version: 2015.02
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P5
Component: Other
AssignedTo: unassigned at buildroot.uclibc.org
ReportedBy: nikita_23k at mail.ru
CC: buildroot at uclibc.org
Estimated Hours: 0.0

Target: raspberry pi 1
Host: Linux Mint 17.1

I'm trying to run a web-server using python-flask. A similar problem with
http://git.buildroot.net/buildroot/commit/?id=82e23f15a11c2cd66d0f6c6397906663c9c9e1d7

My steps:
1. cd /home/n1/test
2. download buildroot
3. cd buildroot
4. make nconfig # add nano, python (2.*), python-flask (zlib added auto) ,wchar, etc (for rpi)
6. make
7. upload to sd card

When I run the project (python-flask) on rpi:

from flask import Flask
app = Flask(__name__)
@app.route("/")
def hello():
return "Hello World!"
app.run()

I get an error:
traceback (most recent call last):
File "test.py", line 1 in, in <module>
from flask import Flask
File
"home/n1/test/buildroot/output/target/usr/lib/python2.7/site-packeges/flask/__init__.py, line 17, in <module>
File
"home/n1/test/buildroot/output/target/usr/lib/python2.7/site-packeges/werkzeug/__init__.py, line 154, in <module>
...
ImportError: No module named zlib

I tried to compile with the help of https://github.com/gamaral/rpi-buildroot , but got the same error. My bug report:
https://github.com/gamaral/rpi-buildroot/issues/34

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https://bugs.busybox.net/show_bug.cgi?id=7971

Nikita <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------

           Priority|P5                          |P2
           Severity|normal                      |major

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https://bugs.busybox.net/show_bug.cgi?id=7971

Nikita <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------

            Summary|python-flask, python-flask. |python-flask,
                   |No module named zlib        |python-werkzeug. No module
                   |                            |named zlib

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https://bugs.busybox.net/show_bug.cgi?id=7971

Peter Korsgaard <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------

             Status|NEW                         |RESOLVED
         Resolution|                            |WORKSFORME

--- Comment #1 from Peter Korsgaard <[email protected]> 2015-04-10 21:16:09 UTC --- Are you sure you have done a clean rebuild after adding flask? The symptoms sounds as if you have first built python (without zlib support) and then afterwards added flask.

I did a test here, and it works:

# python
Python 2.7.9 (default, Apr 10 2015, 23:10:24) 
[GCC 4.8.3 20140320 (prerelease)] on linux2
Type "help", "copyright", "credits" or "license" for more information.

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https://bugs.busybox.net/show_bug.cgi?id=7971

--- Comment #2 from Nikita <[email protected]> 2015-04-19 12:53:42 UTC --- (In reply to comment #1)

Yes. The problem occurs when the language is not en_US. When I do

all is well. My var is LANG=ru_RU.UTF-8

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Nikita <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------

             Status|RESOLVED                    |REOPENED
         Resolution|WORKSFORME                  |

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--- Comment #3 from Thomas Petazzoni <[email protected]> 2015-04-20 22:00:15 UTC --- I am using a fr_FR.UTF-8 system. I've built the following defconfig:

BR2_arm=y
BR2_TOOLCHAIN_EXTERNAL=y
BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y BR2_TOOLCHAIN_EXTERNAL_URL="http://autobuild.buildroot.org/toolchains/tarballs/br-arm-full-2015.02.tar.bz2" BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_18=y
BR2_TOOLCHAIN_EXTERNAL_INET_IPV6=y
BR2_TOOLCHAIN_EXTERNAL_LOCALE=y
# BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG is not set
BR2_TOOLCHAIN_EXTERNAL_INET_RPC=y
BR2_TOOLCHAIN_EXTERNAL_CXX=y
BR2_PACKAGE_PYTHON=y
BR2_PACKAGE_PYTHON_FLASK=y

And Flask can be imported just fine:

Welcome to Buildroot
buildroot login: root

# python

So I cannot reproduce the bug reported by Nikita.

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Thomas Petazzoni <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------

             Status|REOPENED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #4 from Thomas Petazzoni <[email protected]> 2015-06-03 01:09:24 UTC --- Fixed by
http://git.buildroot.net/buildroot/commit/package/python?id=238bf198cf4f31a3301b81a924d5e22044945955

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