pylint: upgrade to 1.4.0

third_party/logilab/common/optparser.py

 # -*- coding: utf-8 -*-
 # copyright 2003-2011 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
 # contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
 #
 # This file is part of logilab-common.
 #
 # logilab-common is free software: you can redistribute it and/or modify it under
 # the terms of the GNU Lesser General Public License as published by the Free
 # Software Foundation, either version 2.1 of the License, or (at your option) any
 # later version.
@@ skipping 11 matching lines @@
 
 >>> parser = OptionParser()
 >>> parser.usage = '%prog COMMAND [options] <arg> ...'
 >>> parser.add_command('build', 'mymod.build')
 >>> parser.add_command('clean', run_clean, add_opt_clean)
 >>> run, options, args = parser.parse_command(sys.argv[1:])
 >>> return run(options, args[1:])
 
 With mymod.build that defines two functions run and add_options
 """
+from __future__ import print_function
+
 __docformat__ = "restructuredtext en"
 
 from warnings import warn
 warn('lgc.optparser module is deprecated, use lgc.clcommands instead', DeprecationWarning,
      stacklevel=2)
 
 import sys
 import optparse
 
 class OptionParser(optparse.OptionParser):
 
     def __init__(self, *args, **kwargs):
         optparse.OptionParser.__init__(self, *args, **kwargs)
         self._commands = {}
         self.min_args, self.max_args = 0, 1
 
     def add_command(self, name, mod_or_funcs, help=''):
         """name of the command, name of module or tuple of functions
         (run, add_options)
         """
         assert isinstance(mod_or_funcs, str) or isinstance(mod_or_funcs, tuple), \
             "mod_or_funcs has to be a module name or a tuple of functions"
         self._commands[name] = (mod_or_funcs, help)
 
     def print_main_help(self):
         optparse.OptionParser.print_help(self)
-        print '\ncommands:'
+        print('\ncommands:')
         for cmdname, (_, help) in self._commands.items():
-            print '% 10s - %s' % (cmdname, help)
+            print('% 10s - %s' % (cmdname, help))
 
     def parse_command(self, args):
         if len(args) == 0:
             self.print_main_help()
             sys.exit(1)
         cmd = args[0]
         args = args[1:]
         if cmd not in self._commands:
             if cmd in ('-h', '--help'):
                 self.print_main_help()
                 sys.exit(0)
             elif self.version is not None and cmd == "--version":
                 self.print_version()
                 sys.exit(0)
             self.error('unknown command')
         self.prog = '%s %s' % (self.prog, cmd)
         mod_or_f, help = self._commands[cmd]
         # optparse inserts self.description between usage and options help
         self.description = help
         if isinstance(mod_or_f, str):
-            exec 'from %s import run, add_options' % mod_or_f
+            exec('from %s import run, add_options' % mod_or_f)
         else:
             run, add_options = mod_or_f
         add_options(self)
         (options, args) = self.parse_args(args)
         if not (self.min_args <= len(args) <= self.max_args):
             self.error('incorrect number of arguments')
         return run, options, args