code cleanup: Fix warnings according to pylint

index 9805036..cccaeb6 100644
@@ -50,8 +50,6 @@ def get_outlets_status(conn, options):
 
 # Main agent method
 def main():
-	global port_oid
-
 	device_opt = [ "ipaddr", "login", "passwd", "passwd_script",
 		       "test", "port", "separator", "no_login", "no_password",
 		       "snmp_version", "community", "snmp_auth_prot", "snmp_sec_level",

index f478c53..e4c4636 100644
@@ -26,8 +26,8 @@ class FencingSnmp:
 		if self.options["log"] >= LOG_MODE_VERBOSE:
 			self.options["debug_fh"].write(message+"\n")
 
-	def quote_for_run(self, str):
-		return ''.join(map(lambda x:x==r"'" and "'\\''" or x, str))
+	def quote_for_run(self, string):
+		return ''.join(map(lambda x:x==r"'" and "'\\''" or x, string))
 
 	def complete_missed_params(self):
 		mapping = [

@@ -112,14 +112,14 @@ class FencingSnmp:
 	def set(self, oid, value, additional_timemout=0):
 		mapping = ((int, 'i'), (str, 's'))
 
-		type = ''
+		type_of_value = ''
 
 		for item in mapping:
 			if (isinstance(value, item[0])):
-				type = item[1]
+				type_of_value = item[1]
 				break
 
-		cmd = "%s '%s' %s '%s'"% (self.prepare_cmd("snmpset"), self.quote_for_run(oid), type, self.quote_for_run(str(value)))
+		cmd = "%s '%s' %s '%s'"% (self.prepare_cmd("snmpset"), self.quote_for_run(oid), type_of_value, self.quote_for_run(str(value)))
 
 		self.run_command(cmd, additional_timemout)
 

index 41da8c0..2710603 100644
@@ -139,7 +139,6 @@ def get_power_status(conn, options):
 				return "on"
 			else:
 				return "off"
-			return status
 		except KeyError, ex:
 			fail(EC_STATUS)
 

index 555fb98..1f353be 100644
@@ -47,7 +47,12 @@ def get_power_status(conn, options):
 		fail(EC_TIMED_OUT)
 	
 	plug_section = 0
+	plug_index = -1
+	name_index = -1
+	status_index = -1
+	plug_header = list()
 	outlets = {}
+	
 	for line in listing.splitlines():
 		if (plug_section == 2) and line.find("|") >= 0 and line.startswith("PLUG") == False:
 			plug_line = [x.strip().lower() for x in line.split("|")]

index f583ea5..599f7a5 100644
@@ -78,10 +78,6 @@ def get_power_fn(session, options):
 # Set the state of the port given in the -U flag of options.
 def set_power_fn(session, options):
 	action = options["-o"].lower()
-	if options.has_key("-v"):
-		verbose = True
-	else:
-		verbose = False
 	
 	try:
 		# Get a reference to the vm specified in the UUID or vm_name/port parameter