itertools.dropwhile(predicate, iterable) Make an iterator that drops elements from the iterable as long as the predicate is true; afterwards, returns every element. Note, the iterator does not produce any output until the predicate first becomes false, so it may have a lengthy start-up time. Roughly equivalent to: def dropwhile(predicate, iterable): # dropwhile(lambda x: x<5, [1,4,6,4,1]) --> 6 4 1 iterable = iter(iterable) for x in iterable: if not predicate(x):

divmod(a, b) Take two (non complex) numbers as arguments and return a pair of numbers consisting of their quotient and remainder when using integer division. With mixed operand types, the rules for binary arithmetic operators apply. For integers, the result is the same as (a // b, a % b). For floating point numbers the result is (q, a % b), where q is usually math.floor(a / b) but may be 1 less than that. In any case q * b + a % b is very close to a, if a % b is non-zero it has the same sign

traces Traces of all memory blocks allocated by Python: sequence of Trace instances. The sequence has an undefined order. Use the Snapshot.statistics() method to get a sorted list of statistics.

wait(timeout=None) Wait until notified or until a timeout occurs. If the calling thread has not acquired the lock when this method is called, a RuntimeError is raised. This method releases the underlying lock, and then blocks until it is awakened by a notify() or notify_all() call for the same condition variable in another thread, or until the optional timeout occurs. Once awakened or timed out, it re-acquires the lock and returns. When the timeout argument is present and not None, it should

ast.get_docstring(node, clean=True) Return the docstring of the given node (which must be a FunctionDef, ClassDef or Module node), or None if it has no docstring. If clean is true, clean up the docstring’s indentation with inspect.cleandoc().

exception() Get the exception.

fnmatch.translate(pattern) Return the shell-style pattern converted to a regular expression. Example: >>> import fnmatch, re >>> >>> regex = fnmatch.translate('*.txt') >>> regex '.*\\.txt\\Z(?ms)' >>> reobj = re.compile(regex) >>> reobj.match('foobar.txt') <_sre.SRE_Match object; span=(0, 10), match='foobar.txt'>

_flush() Force buffered data to be transmitted to the client. It’s okay if this method is a no-op (i.e., if _write() actually sends the data).

class socketserver.TCPServer(server_address, RequestHandlerClass, bind_and_activate=True) This uses the Internet TCP protocol, which provides for continuous streams of data between the client and server. If bind_and_activate is true, the constructor automatically attempts to invoke server_bind() and server_activate(). The other parameters are passed to the BaseServer base class.

socket.dup() Duplicate the socket. The newly created socket is non-inheritable. Changed in version 3.4: The socket is now non-inheritable.