Support Python 2.3.

1 files changed, 39 insertions, 21 deletions

diff --git a/argparse.py b/argparse.py
index 5ffcd42..bc640a2 100644
--- a/argparse.py
+++ b/argparse.py
@@ -82,10 +82,27 @@ import textwrap as _textwrap
 from gettext import gettext as _

 

 try:

+    set

+except NameError:

+    from sets import Set as set

+

+try:

     basestring

 except NameError:

     basestring = str

 

+try:

+    sorted

+except NameError:

+

+    def sorted(iterable, reverse=False):

+        result = list(iterable)

+        result.sort()

+        if reverse:

+            result.reverse()

+        return result

+

+

 SUPPRESS = '==SUPPRESS=='

 

 OPTIONAL = '?'

@@ -190,7 +207,7 @@ class HelpFormatter(object):
             join = self.formatter._join_parts

             for func, args in self.items:

                 func(*args)

-            item_help = join(func(*args) for func, args in self.items)

+            item_help = join([func(*args) for func, args in self.items])

             if self.parent is not None:

                 self.formatter._dedent()

 

@@ -243,7 +260,7 @@ class HelpFormatter(object):
                 invocations.append(get_invocation(subaction))

 

             # update the maximum item length

-            invocation_length = max(len(s) for s in invocations)

+            invocation_length = max([len(s) for s in invocations])

             action_length = invocation_length + self._current_indent

             self._action_max_length = max(self._action_max_length,

                                           action_length)

@@ -266,9 +283,9 @@ class HelpFormatter(object):
         return help

 

     def _join_parts(self, part_strings):

-        return ''.join(part

-                       for part in part_strings

-                       if part and part is not SUPPRESS)

+        return ''.join([part

+                        for part in part_strings

+                        if part and part is not SUPPRESS])

 

     def _format_usage(self, usage, actions, groups, prefix):

         if prefix is None:

@@ -409,7 +426,7 @@ class HelpFormatter(object):
             parts[i:i] = [inserts[i]]

 

         # join all the action items with spaces

-        text = ' '.join(item for item in parts if item is not None)

+        text = ' '.join([item for item in parts if item is not None])

 

         # clean up separators for mutually exclusive groups

         open = r'[\[(]'

@@ -501,7 +518,7 @@ class HelpFormatter(object):
         if action.metavar is not None:

             name = action.metavar

         elif action.choices is not None:

-            choice_strs = (str(choice) for choice in action.choices)

+            choice_strs = [str(choice) for choice in action.choices]

             name = '{%s}' % ','.join(choice_strs)

         else:

             name = default_metavar

@@ -529,7 +546,7 @@ class HelpFormatter(object):
             if params[name] is SUPPRESS:

                 del params[name]

         if params.get('choices') is not None:

-            choices_str = ', '.join(str(c) for c in params['choices'])

+            choices_str = ', '.join([str(c) for c in params['choices']])

             params['choices'] = choices_str

         return action.help % params

 

@@ -557,7 +574,7 @@ class HelpFormatter(object):
 class RawDescriptionHelpFormatter(HelpFormatter):

 

     def _fill_text(self, text, width, indent):

-        return ''.join(indent + line for line in text.splitlines(True))

+        return ''.join([indent + line for line in text.splitlines(True)])

 

 

 class RawTextHelpFormatter(RawDescriptionHelpFormatter):

@@ -1010,7 +1027,7 @@ class FileType(object):
 

     def __repr__(self):

         args = [self._mode, self._bufsize]

-        args_str = ', '.join(repr(arg) for arg in args if arg is not None)

+        args_str = ', '.join([repr(arg) for arg in args if arg is not None])

         return '%s(%s)' % (type(self).__name__, args_str)

 

 # ===========================

@@ -1288,9 +1305,9 @@ class _ActionsContainer(object):
 

     def _handle_conflict_error(self, action, conflicting_actions):

         message = _('conflicting option string(s): %s')

-        conflict_string = ', '.join(option_string

-                                    for option_string, action

-                                    in conflicting_actions)

+        conflict_string = ', '.join([option_string

+                                     for option_string, action

+                                     in conflicting_actions])

         raise ArgumentError(action, message % conflict_string)

 

     def _handle_conflict_resolve(self, action, conflicting_actions):

@@ -1687,10 +1704,10 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
         while start_index <= max_option_string_index:

 

             # consume any Positionals preceding the next option

-            next_option_string_index = min(

+            next_option_string_index = min([

                 index

                 for index in option_string_indices

-                if index >= start_index)

+                if index >= start_index])

             if start_index != next_option_string_index:

                 positionals_end_index = consume_positionals(start_index)

 

@@ -1777,11 +1794,11 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
         result = []

         for i in range(len(actions), 0, -1):

             actions_slice = actions[:i]

-            pattern = ''.join(self._get_nargs_pattern(action)

-                              for action in actions_slice)

+            pattern = ''.join([self._get_nargs_pattern(action)

+                               for action in actions_slice])

             match = _re.match(pattern, arg_strings_pattern)

             if match is not None:

-                result.extend(len(string) for string in match.groups())

+                result.extend([len(string) for string in match.groups()])

                 break

 

         # return the list of arg string counts

@@ -1815,7 +1832,8 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
 

         # if multiple actions match, the option string was ambiguous

         if len(option_tuples) > 1:

-            options = ', '.join(opt_str for _, opt_str, _ in option_tuples)

+            options = ', '.join([option_string

+                for action, option_string, explicit_arg in option_tuples])

             tup = arg_string, options

             self.error(_('ambiguous option: %s could match %s') % tup)

 

@@ -1953,12 +1971,12 @@ class ArgumentParser(_AttributeHolder, _ActionsContainer):
 

         # PARSER arguments convert all values, but check only the first

         elif action.nargs is PARSER:

-            value = list(self._get_value(action, v) for v in arg_strings)

+            value = [self._get_value(action, v) for v in arg_strings]

             self._check_value(action, value[0])

 

         # all other types of nargs produce a list

         else:

-            value = list(self._get_value(action, v) for v in arg_strings)

+            value = [self._get_value(action, v) for v in arg_strings]

             for v in value:

                 self._check_value(action, v)