datetime If the header value can be recognized as a valid date of one form or another, this attribute will contain a datetime instance representing that date. If the timezone of the input date is specified as -0000 (indicating it is in UTC but contains no information about the source timezone), then datetime will be a naive datetime. If a specific timezone offset is found (including +0000), then datetime will contain an aware datetime that uses datetime.timezone to record the timezone offset

class email.headerregistry.DateHeader RFC 5322 specifies a very specific format for dates within email headers. The DateHeader parser recognizes that date format, as well as recognizing a number of variant forms that are sometimes found “in the wild”. This header type provides the following additional attributes: datetime If the header value can be recognized as a valid date of one form or another, this attribute will contain a datetime instance representing that date. If the timezone of

token.ISEOF(x) Return true if x is the marker indicating the end of input.

abstractmethod select(timeout=None) Wait until some registered file objects become ready, or the timeout expires. If timeout > 0, this specifies the maximum wait time, in seconds. If timeout <= 0, the call won’t block, and will report the currently ready file objects. If timeout is None, the call will block until a monitored file object becomes ready. This returns a list of (key, events) tuples, one for each ready file object. key is the SelectorKey instance corresponding to a ready fi

exception email.errors.MultipartConversionError Raised when a payload is added to a Message object using add_payload(), but the payload is already a scalar and the message’s Content-Type main type is not either multipart or missing. MultipartConversionError multiply inherits from MessageError and the built-in TypeError. Since Message.add_payload() is deprecated, this exception is rarely raised in practice. However the exception may also be raised if the attach() method is called on an instan

turtle.onscreenclick(fun, btn=1, add=None) Parameters: fun – a function with two arguments which will be called with the coordinates of the clicked point on the canvas num – number of the mouse-button, defaults to 1 (left mouse button) add – True or False – if True, a new binding will be added, otherwise it will replace a former binding Bind fun to mouse-click events on this screen. If fun is None, existing bindings are removed. Example for a TurtleScreen instance named screen and a T

turtle.home() Move turtle to the origin – coordinates (0,0) – and set its heading to its start-orientation (which depends on the mode, see mode()). >>> turtle.heading() 90.0 >>> turtle.position() (0.00,-10.00) >>> turtle.home() >>> turtle.position() (0.00,0.00) >>> turtle.heading() 0.0

winreg.QueryValueEx(key, value_name) Retrieves the type and data for a specified value name associated with an open registry key. key is an already open key, or one of the predefined HKEY_* constants. value_name is a string indicating the value to query. The result is a tuple of 2 items: Index Meaning 0 The value of the registry item. 1 An integer giving the registry type for this value (see table in docs for SetValueEx())

exception BlockingIOError Raised when an operation would block on an object (e.g. socket) set for non-blocking operation. Corresponds to errno EAGAIN, EALREADY, EWOULDBLOCK and EINPROGRESS. In addition to those of OSError, BlockingIOError can have one more attribute: characters_written An integer containing the number of characters written to the stream before it blocked. This attribute is available when using the buffered I/O classes from the io module.

str.translate(table) Return a copy of the string in which each character has been mapped through the given translation table. The table must be an object that implements indexing via __getitem__(), typically a mapping or sequence. When indexed by a Unicode ordinal (an integer), the table object can do any of the following: return a Unicode ordinal or a string, to map the character to one or more other characters; return None, to delete the character from the return string; or raise a LookupE