insert(i, x) Insert x into the deque at position i. If the insertion would cause a bounded deque to grow beyond maxlen, an IndexError is raised. New in version 3.5.

socket.ntohl(x) Convert 32-bit positive integers from network to host byte order. On machines where the host byte order is the same as network byte order, this is a no-op; otherwise, it performs a 4-byte swap operation.

Class.name The name of the class.

pattern The regular expression pattern.

tokenize.untokenize(iterable) Converts tokens back into Python source code. The iterable must return sequences with at least two elements, the token type and the token string. Any additional sequence elements are ignored. The reconstructed script is returned as a single string. The result is guaranteed to tokenize back to match the input so that the conversion is lossless and round-trips are assured. The guarantee applies only to the token type and token string as the spacing between tokens

unittest.mock.sentinel The sentinel object provides a convenient way of providing unique objects for your tests. Attributes are created on demand when you access them by name. Accessing the same attribute will always return the same object. The objects returned have a sensible repr so that test failure messages are readable.

name The name of the encoding.

exception select.error A deprecated alias of OSError. Changed in version 3.3: Following PEP 3151, this class was made an alias of OSError.

Logger.filter(record) Applies this logger’s filters to the record and returns a true value if the record is to be processed. The filters are consulted in turn, until one of them returns a false value. If none of them return a false value, the record will be processed (passed to handlers). If one returns a false value, no further processing of the record occurs.

socket.proto The socket protocol.