virtualEnvironment/lib/python2.7/site-packages/coverage/files.py
def canonical_filename(self, filename):
        """Return a canonical filename for `filename`.

        An absolute path with no redundant components and normalized case.

        """
        if filename not in self.canonical_filename_cache:
            if not os.path.isabs(filename):
                for path in [os.curdir] + sys.path:
                    if path is None:
                        continue
                    f = os.path.join(path, filename)
                    if os.path.exists(f):
                        filename = f
                        break
            cf = abs_file(filename)
            self.canonical_filename_cache[filename] = cf
        return self.canonical_filename_cache[filename]
def canonical_filename(self, filename):
        if filename not in self.canonical_filename_cache:
            if not os.path.isabs(filename):
                for path in [os.curdir] + sys.path:
                    if path is None:
                        continue
                    f = os.path.join(path, filename)
                    if os.path.exists(f):
                        filename = f
                        break
            cf = abs_file(filename)
            self.canonical_filename_cache[filename] = cf
        return self.canonical_filename_cache[filename]
def canonical_filename ( self , filename ) : if filename not in self . canonical_filename_cache : if not os . path . isabs ( filename ) : for path in [ os . curdir ] + sys . path : if path is None : continue f = os . path . join ( path , filename ) if os . path . exists ( f ) : filename = f break cf = abs_file ( filename ) self . canonical_filename_cache [ filename ] = cf return self . canonical_filename_cache [ filename ]
Return a canonical filename for `filename`.

        An absolute path with no redundant components and normalized case.
Return a canonical filename for filename .