os.getppid() Return the parent’s process id. When the parent process has exited, on Unix the id returned is the one of the init process (1), on Windows it is still the same id, which may be already reused by another process. Availability: Unix, Windows. Changed in version 3.2: Added support for Windows.

report() Print a report to standard output that lists the modules imported by the script and their paths, as well as modules that are missing or seem to be missing.

class io.FileIO(name, mode='r', closefd=True, opener=None) FileIO represents an OS-level file containing bytes data. It implements the RawIOBase interface (and therefore the IOBase interface, too). The name can be one of two things: a character string or bytes object representing the path to the file which will be opened. In this case closefd must be True (the default) otherwise an error will be raised. an integer representing the number of an existing OS-level file descriptor to which the r

Path.rglob(pattern) This is like calling glob() with “**” added in front of the given pattern: >>> sorted(Path().rglob("*.py")) [PosixPath('build/lib/pathlib.py'), PosixPath('docs/conf.py'), PosixPath('pathlib.py'), PosixPath('setup.py'), PosixPath('test_pathlib.py')]

class decimal.BasicContext This is a standard context defined by the General Decimal Arithmetic Specification. Precision is set to nine. Rounding is set to ROUND_HALF_UP. All flags are cleared. All traps are enabled (treated as exceptions) except Inexact, Rounded, and Subnormal. Because many of the traps are enabled, this context is useful for debugging.

set_output_charset(charset) Change the “protected” _output_charset variable, which defines the encoding used to return translated messages.

class trace.Trace(count=1, trace=1, countfuncs=0, countcallers=0, ignoremods=(), ignoredirs=(), infile=None, outfile=None, timing=False) Create an object to trace execution of a single statement or expression. All parameters are optional. count enables counting of line numbers. trace enables line execution tracing. countfuncs enables listing of the functions called during the run. countcallers enables call relationship tracking. ignoremods is a list of modules or packages to ignore. ignoredi

CookieJar.clear_session_cookies() Discard all session cookies. Discards all contained cookies that have a true discard attribute (usually because they had either no max-age or expires cookie-attribute, or an explicit discard cookie-attribute). For interactive browsers, the end of a session usually corresponds to closing the browser window. Note that the save() method won’t save session cookies anyway, unless you ask otherwise by passing a true ignore_discard argument.

asyncio.new_event_loop() Equivalent to calling get_event_loop_policy().new_event_loop().

get_request() Must accept a request from the socket, and return a 2-tuple containing the new socket object to be used to communicate with the client, and the client’s address.