getpass.getuser() Return the “login name” of the user. This function checks the environment variables LOGNAME, USER, LNAME and USERNAME, in order, and returns the value of the first one which is set to a non-empty string. If none are set, the login name from the password database is returned on systems which support the pwd module, otherwise, an exception is raised.

in_transaction True if a transaction is active (there are uncommitted changes), False otherwise. Read-only attribute. New in version 3.2.

ratio() Return a measure of the sequences’ similarity as a float in the range [0, 1]. Where T is the total number of elements in both sequences, and M is the number of matches, this is 2.0*M / T. Note that this is 1.0 if the sequences are identical, and 0.0 if they have nothing in common. This is expensive to compute if get_matching_blocks() or get_opcodes() hasn’t already been called, in which case you may want to try quick_ratio() or real_quick_ratio() first to get an upper bound.

window.getparyx() Return the beginning coordinates of this window relative to its parent window into two integer variables y and x. Return -1, -1 if this window has no parent.

process_message(peer, mailfrom, rcpttos, data, **kwargs) Raise a NotImplementedError exception. Override this in subclasses to do something useful with this message. Whatever was passed in the constructor as remoteaddr will be available as the _remoteaddr attribute. peer is the remote host’s address, mailfrom is the envelope originator, rcpttos are the envelope recipients and data is a string containing the contents of the e-mail (which should be in RFC 5321 format). If the decode_data const

class fractions.Fraction(numerator=0, denominator=1) class fractions.Fraction(other_fraction) class fractions.Fraction(float) class fractions.Fraction(decimal) class fractions.Fraction(string) The first version requires that numerator and denominator are instances of numbers.Rational and returns a new Fraction instance with value numerator/denominator. If denominator is 0, it raises a ZeroDivisionError. The second version requires that other_fraction is an instance of numbers.Rational and ret

bdb.set_trace() Start debugging with a Bdb instance from caller’s frame.

find_spec(fullname, target=None) Attempt to find the spec to handle fullname within path. New in version 3.4.

Codec.decode(input[, errors]) Decodes the object input and returns a tuple (output object, length consumed). For instance, for a text encoding, decoding converts a bytes object encoded using a particular character set encoding to a string object. For text encodings and bytes-to-bytes codecs, input must be a bytes object or one which provides the read-only buffer interface – for example, buffer objects and memory mapped files. The errors argument defines the error handling to apply. It defaul

Element.hasAttributeNS(namespaceURI, localName) Returns true if the element has an attribute named by namespaceURI and localName.