class asyncio.BaseTransport Base class for transports. close(self) Close the transport. If the transport has a buffer for outgoing data, buffered data will be flushed asynchronously. No more data will be received. After all buffered data is flushed, the protocol’s connection_lost() method will be called with None as its argument. is_closing(self) Return True if the transport is closing or is closed. New in version 3.5.1. get_extra_info(name, default=None) Return optional tra

close(self) Close the transport. If the transport has a buffer for outgoing data, buffered data will be flushed asynchronously. No more data will be received. After all buffered data is flushed, the protocol’s connection_lost() method will be called with None as its argument.

add_done_callback(fn) Add a callback to be run when the future becomes done. The callback is called with a single argument - the future object. If the future is already done when this is called, the callback is scheduled with call_soon(). Use functools.partial to pass parameters to the callback. For example, fut.add_done_callback(functools.partial(print, "Future:", flush=True)) will call print("Future:", fut, flush=True).

os.fsencode(filename) Encode filename to the filesystem encoding with 'surrogateescape' error handler, or 'strict' on Windows; return bytes unchanged. fsdecode() is the reverse function. New in version 3.2.

FTP.retrbinary(cmd, callback, blocksize=8192, rest=None) Retrieve a file in binary transfer mode. cmd should be an appropriate RETR command: 'RETR filename'. The callback function is called for each block of data received, with a single string argument giving the data block. The optional blocksize argument specifies the maximum chunk size to read on the low-level socket object created to do the actual transfer (which will also be the largest size of the data blocks passed to callback). A rea

close() At this point, you can remove the application name from the registry as a source of event log entries. However, if you do this, you will not be able to see the events as you intended in the Event Log Viewer - it needs to be able to access the registry to get the .dll name. The current version does not do this.

class wsgiref.handlers.IISCGIHandler A specialized alternative to CGIHandler, for use when deploying on Microsoft’s IIS web server, without having set the config allowPathInfo option (IIS>=7) or metabase allowPathInfoForScriptMappings (IIS<7). By default, IIS gives a PATH_INFO that duplicates the SCRIPT_NAME at the front, causing problems for WSGI applications that wish to implement routing. This handler strips any such duplicated path. IIS can be configured to pass the correct PATH_IN

random.seed(a=None, version=2) Initialize the random number generator. If a is omitted or None, the current system time is used. If randomness sources are provided by the operating system, they are used instead of the system time (see the os.urandom() function for details on availability). If a is an int, it is used directly. With version 2 (the default), a str, bytes, or bytearray object gets converted to an int and all of its bits are used. With version 1, the hash() of a is used instead.

subTest(msg=None, **params) Return a context manager which executes the enclosed code block as a subtest. msg and params are optional, arbitrary values which are displayed whenever a subtest fails, allowing you to identify them clearly. A test case can contain any number of subtest declarations, and they can be arbitrarily nested. See Distinguishing test iterations using subtests for more information. New in version 3.4.

os.setxattr(path, attribute, value, flags=0, *, follow_symlinks=True) Set the extended filesystem attribute attribute on path to value. attribute must be a bytes or str with no embedded NULs. If it is a str, it is encoded with the filesystem encoding. flags may be XATTR_REPLACE or XATTR_CREATE. If XATTR_REPLACE is given and the attribute does not exist, EEXISTS will be raised. If XATTR_CREATE is given and the attribute already exists, the attribute will not be created and ENODATA will be rai