57     def abspath(self, path):  argument
58         return os.path.abspath(path)
60     def basename(self, path):  argument
62         return os.path.basename(path)
64     def chdir(self, path):  argument
66         return os.chdir(path)
73     def dirname(self, path):  argument
75         return os.path.dirname(path)
77     def exists(self, path):  argument
79         return os.path.exists(path)
81     def files_under(self, path, dirs_to_skip=[], file_filter=None):  argument
97         if self.isfile(path):
98             if file_filter(self, self.dirname(path), self.basename(path)):
99                 files.append(path)
102         if self.basename(path) in dirs_to_skip:
105         for (dirpath, dirnames, filenames) in os.walk(path):
119     def glob(self, path):  argument
121         return glob.glob(path)
123     def isabs(self, path):  argument
125         return os.path.isabs(path)
127     def isfile(self, path):  argument
129         return os.path.isfile(path)
131     def isdir(self, path):  argument
133         return os.path.isdir(path)
137         return os.path.join(*comps)
139     def listdir(self, path):  argument
141         return os.listdir(path)
170                 if os.path.exists(self._directory_path):
175     def maybe_make_directory(self, *path):  argument
178             os.makedirs(self.join(*path))
186     def mtime(self, path):  argument
187         return os.stat(path).st_mtime
189     def normpath(self, path):  argument
191         return os.path.normpath(path)
199     def open_text_file_for_writing(self, path, append=False):  argument
204         return codecs.open(path, mode, 'utf8')
206     def open_binary_file_for_reading(self, path):  argument
207         return codecs.open(path, 'rb')
209     def read_binary_file(self, path):  argument
211         with file(path, 'rb') as f:
214     def read_text_file(self, path):  argument
218         with codecs.open(path, 'r', 'utf8') as f:
221     def relpath(self, path, start='.'):  argument
222         return ospath.relpath(path, start)
228     def remove(self, path, osremove=os.remove):  argument
242                 osremove(path)
250     def rmtree(self, path):  argument
252         shutil.rmtree(path, ignore_errors=True)
254     def read_binary_file(self, path):  argument
256         with file(path, 'rb') as f:
259     def read_text_file(self, path):  argument
263         with codecs.open(path, 'r', 'utf8') as f:
266     def splitext(self, path):  argument
268         return os.path.splitext(path)
270     def write_binary_file(self, path, contents):  argument
272         with file(path, 'wb') as f:
275     def write_text_file(self, path, contents):  argument
279         with codecs.open(path, 'w', 'utf8') as f: