linecache.clearcache() Clear the cache. Use this function if you no longer need lines from files previously read using getline().

failfast If set to true stop() will be called on the first failure or error, halting the test run. New in version 3.2.

run() Method representing the process’s activity. You may override this method in a subclass. The standard run() method invokes the callable object passed to the object’s constructor as the target argument, if any, with sequential and keyword arguments taken from the args and kwargs arguments, respectively.

ctypes.string_at(address, size=-1) This function returns the C string starting at memory address address as a bytes object. If size is specified, it is used as size, otherwise the string is assumed to be zero-terminated.

cmath.acos(x) Return the arc cosine of x. There are two branch cuts: One extends right from 1 along the real axis to ∞, continuous from below. The other extends left from -1 along the real axis to -∞, continuous from above.

persistent_load(pid) Raise an UnpicklingError by default. If defined, persistent_load() should return the object specified by the persistent ID pid. If an invalid persistent ID is encountered, an UnpicklingError should be raised. See Persistence of External Objects for details and examples of uses.

csvreader.line_num The number of lines read from the source iterator. This is not the same as the number of records returned, as records can span multiple lines.

itertools.chain(*iterables) Make an iterator that returns elements from the first iterable until it is exhausted, then proceeds to the next iterable, until all of the iterables are exhausted. Used for treating consecutive sequences as a single sequence. Roughly equivalent to: def chain(*iterables): # chain('ABC', 'DEF') --> A B C D E F for it in iterables: for element in it: yield element

Logger.handle(record) Handles a record by passing it to all handlers associated with this logger and its ancestors (until a false value of propagate is found). This method is used for unpickled records received from a socket, as well as those created locally. Logger-level filtering is applied using filter().

class smtpd.SMTPServer(localaddr, remoteaddr, data_size_limit=33554432, map=None, enable_SMTPUTF8=False, decode_data=True) Create a new SMTPServer object, which binds to local address localaddr. It will treat remoteaddr as an upstream SMTP relayer. It inherits from asyncore.dispatcher, and so will insert itself into asyncore‘s event loop on instantiation. data_size_limit specifies the maximum number of bytes that will be accepted in a DATA command. A value of None or 0 means no limit. map is