add_header(_name, _value, **_params) Extended header setting. This method is similar to __setitem__() except that additional header parameters can be provided as keyword arguments. _name is the header field to add and _value is the primary value for the header. For each item in the keyword argument dictionary _params, the key is taken as the parameter name, with underscores converted to dashes (since dashes are illegal in Python identifiers). Normally, the parameter will be added as key="val

ensurepip.bootstrap(root=None, upgrade=False, user=False, altinstall=False, default_pip=False, verbosity=0) Bootstraps pip into the current or designated environment. root specifies an alternative root directory to install relative to. If root is None, then installation uses the default install location for the current environment. upgrade indicates whether or not to upgrade an existing installation of an earlier version of pip to the bundled version. user indicates whether to use the user s

multiprocessing.get_start_method(allow_none=False) Return the name of start method used for starting processes. If the start method has not been fixed and allow_none is false, then the start method is fixed to the default and the name is returned. If the start method has not been fixed and allow_none is true then None is returned. The return value can be 'fork', 'spawn', 'forkserver' or None. 'fork' is the default on Unix, while 'spawn' is the default on Windows. New in version 3.4.

fileno() This returns the file descriptor used by the underlying select.epoll() object.

yeardatescalendar(year, width=3) Return the data for the specified year ready for formatting. The return value is a list of month rows. Each month row contains up to width months (defaulting to 3). Each month contains between 4 and 6 weeks and each week contains 1–7 days. Days are datetime.date objects.

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.

SMTP.auth(mechanism, authobject, *, initial_response_ok=True) Issue an SMTP AUTH command for the specified authentication mechanism, and handle the challenge response via authobject. mechanism specifies which authentication mechanism is to be used as argument to the AUTH command; the valid values are those listed in the auth element of esmtp_features. authobject must be a callable object taking an optional single argument: data = authobject(challenge=None) If optional keyword argument ini

turtle.seth(to_angle) Parameters: to_angle – a number (integer or float) Set the orientation of the turtle to to_angle. Here are some common directions in degrees: standard mode logo mode 0 - east 0 - north 90 - north 90 - east 180 - west 180 - south 270 - south 270 - west >>> turtle.setheading(90) >>> turtle.heading() 90.0

turtle.setundobuffer(size) Parameters: size – an integer or None Set or disable undobuffer. If size is an integer an empty undobuffer of given size is installed. size gives the maximum number of turtle actions that can be undone by the undo() method/function. If size is None, the undobuffer is disabled. >>> turtle.setundobuffer(42)

class imaplib.IMAP4_stream(command) This is a subclass derived from IMAP4 that connects to the stdin/stdout file descriptors created by passing command to subprocess.Popen().