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Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
__init__.py	5.11 KB	-rw-r--r--
fix_UserDict.py	3.75 KB	-rw-r--r--
fix_absolute_import.py	3.07 KB	-rw-r--r--
fix_add__future__imports_excep...	662 B	-rw-r--r--
fix_basestring.py	394 B	-rw-r--r--
fix_bytes.py	685 B	-rw-r--r--
fix_cmp.py	701 B	-rw-r--r--
fix_division.py	228 B	-rw-r--r--
fix_division_safe.py	3.55 KB	-rw-r--r--
fix_execfile.py	921 B	-rw-r--r--
fix_future_builtins.py	1.98 KB	-rw-r--r--
fix_future_standard_library.py	733 B	-rw-r--r--
fix_future_standard_library_ur...	1001 B	-rw-r--r--
fix_input.py	687 B	-rw-r--r--
fix_metaclass.py	9.34 KB	-rw-r--r--
fix_next_call.py	3.08 KB	-rw-r--r--
fix_object.py	407 B	-rw-r--r--
fix_oldstr_wrap.py	1.19 KB	-rw-r--r--
fix_order___future__imports.py	829 B	-rw-r--r--
fix_print.py	3.79 KB	-rw-r--r--
fix_print_with_import.py	735 B	-rw-r--r--
fix_raise.py	3.81 KB	-rw-r--r--
fix_remove_old__future__import...	851 B	-rw-r--r--
fix_unicode_keep_u.py	779 B	-rw-r--r--
fix_unicode_literals_import.py	367 B	-rw-r--r--
fix_xrange_with_import.py	479 B	-rw-r--r--

Code Editor : fix_UserDict.py

"""Fix UserDict.

Incomplete!

TODO: base this on fix_urllib perhaps?
"""

# Local imports
from lib2to3 import fixer_base
from lib2to3.fixer_util import Name, attr_chain
from lib2to3.fixes.fix_imports import alternates, build_pattern, FixImports

MAPPING = {'UserDict':  'collections',
}

# def alternates(members):
#     return "(" + "|".join(map(repr, members)) + ")"
#
#
# def build_pattern(mapping=MAPPING):
#     mod_list = ' | '.join(["module_name='%s'" % key for key in mapping])
#     bare_names = alternates(mapping.keys())
#
#     yield """name_import=import_name< 'import' ((%s) |
#                multiple_imports=dotted_as_names< any* (%s) any* >) >
#           """ % (mod_list, mod_list)
#     yield """import_from< 'from' (%s) 'import' ['(']
#               ( any | import_as_name< any 'as' any > |
#                 import_as_names< any* >)  [')'] >
#           """ % mod_list
#     yield """import_name< 'import' (dotted_as_name< (%s) 'as' any > |
#                multiple_imports=dotted_as_names<
#                  any* dotted_as_name< (%s) 'as' any > any* >) >
#           """ % (mod_list, mod_list)
#
#     # Find usages of module members in code e.g. thread.foo(bar)
#     yield "power< bare_with_attr=(%s) trailer<'.' any > any* >" % bare_names

# class FixUserDict(fixer_base.BaseFix):
class FixUserdict(FixImports):

BM_compatible = True
    keep_line_order = True
    # This is overridden in fix_imports2.
    mapping = MAPPING

# We want to run this fixer late, so fix_import doesn't try to make stdlib
    # renames into relative imports.
    run_order = 6

def build_pattern(self):
        return "|".join(build_pattern(self.mapping))

def compile_pattern(self):
        # We override this, so MAPPING can be pragmatically altered and the
        # changes will be reflected in PATTERN.
        self.PATTERN = self.build_pattern()
        super(FixImports, self).compile_pattern()

# Don't match the node if it's within another match.
    def match(self, node):
        match = super(FixImports, self).match
        results = match(node)
        if results:
            # Module usage could be in the trailer of an attribute lookup, so we
            # might have nested matches when "bare_with_attr" is present.
            if "bare_with_attr" not in results and \
                    any(match(obj) for obj in attr_chain(node, "parent")):
                return False
            return results
        return False

def start_tree(self, tree, filename):
        super(FixImports, self).start_tree(tree, filename)
        self.replace = {}

def transform(self, node, results):
        import_mod = results.get("module_name")
        if import_mod:
            mod_name = import_mod.value
            new_name = unicode(self.mapping[mod_name])
            import_mod.replace(Name(new_name, prefix=import_mod.prefix))
            if "name_import" in results:
                # If it's not a "from x import x, y" or "import x as y" import,
                # marked its usage to be replaced.
                self.replace[mod_name] = new_name
            if "multiple_imports" in results:
                # This is a nasty hack to fix multiple imports on a line (e.g.,
                # "import StringIO, urlparse"). The problem is that I can't
                # figure out an easy way to make a pattern recognize the keys of
                # MAPPING randomly sprinkled in an import statement.
                results = self.match(node)
                if results:
                    self.transform(node, results)
        else:
            # Replace usage of the module.
            bare_name = results["bare_with_attr"][0]
            new_name = self.replace.get(bare_name.value)
            if new_name:
                bare_name.replace(Name(new_name, prefix=bare_name.prefix))

${this.title}

Code Editor : fix_UserDict.py