datetime.utcoffset() If tzinfo is None, returns None, else returns self.tzinfo.utcoffset(self), and raises an exception if the latter doesn’t return None, or a timedelta object representing a whole number of minutes with magnitude less than one day.

shlex.quote(s) Return a shell-escaped version of the string s. The returned value is a string that can safely be used as one token in a shell command line, for cases where you cannot use a list. This idiom would be unsafe: >>> filename = 'somefile; rm -rf ~' >>> command = 'ls -l {}'.format(filename) >>> print(command) # executed by a shell: boom! ls -l somefile; rm -rf ~ quote() lets you plug the security hole: >>> command = 'ls -l {}'.format(quote(filen

wave.openfp(file, mode) A synonym for open(), maintained for backwards compatibility.

POP3.capa() Query the server’s capabilities as specified in RFC 2449. Returns a dictionary in the form {'name': ['param'...]}. New in version 3.4.

re.split(pattern, string, maxsplit=0, flags=0) Split string by the occurrences of pattern. If capturing parentheses are used in pattern, then the text of all groups in the pattern are also returned as part of the resulting list. If maxsplit is nonzero, at most maxsplit splits occur, and the remainder of the string is returned as the final element of the list. >>> re.split('\W+', 'Words, words, words.') ['Words', 'words', 'words', ''] >>> re.split('(\W+)', 'Words, words, wor

exception EnvironmentError

POP3.retr(which) Retrieve whole message number which, and set its seen flag. Result is in form (response, ['line', ...], octets).

tracemalloc.start(nframe: int=1) Start tracing Python memory allocations: install hooks on Python memory allocators. Collected tracebacks of traces will be limited to nframe frames. By default, a trace of a memory block only stores the most recent frame: the limit is 1. nframe must be greater or equal to 1. Storing more than 1 frame is only useful to compute statistics grouped by 'traceback' or to compute cumulative statistics: see the Snapshot.compare_to() and Snapshot.statistics() methods.

shutil.move(src, dst, copy_function=copy2) Recursively move a file or directory (src) to another location (dst) and return the destination. If the destination is an existing directory, then src is moved inside that directory. If the destination already exists but is not a directory, it may be overwritten depending on os.rename() semantics. If the destination is on the current filesystem, then os.rename() is used. Otherwise, src is copied to dst using copy_function and then removed. In case o

Decompress.flush([length]) All pending input is processed, and a bytes object containing the remaining uncompressed output is returned. After calling flush(), the decompress() method cannot be called again; the only realistic action is to delete the object. The optional parameter length sets the initial size of the output buffer.