struct.calcsize(fmt) Return the size of the struct (and hence of the bytes object produced by pack(fmt, ...)) corresponding

codecs.getincrementalencoder(encoding) Look up the codec for the given encoding and return its incremental encoder class or

codecs.register_error(name, error_handler) Register the error handling function error_handler under the name name

codecs.namereplace_errors(exception) Implements the 'namereplace' error handling (for encoding with

reset() Flushes and resets the codec buffers used for keeping state. Calling this method should

readline([size[, keepends]]) Read one line from the input stream and return the decoded data. size

struct.iter_unpack(fmt, buffer) Iteratively unpack from the buffer buffer according to the format string fmt

IncrementalEncoder.getstate() Return the current state of the encoder which must be an integer. The implementation should make

codecs.iterdecode(iterator, encoding, errors='strict', **kwargs) Uses an incremental decoder to iteratively decode the input

codecs.open(filename, mode='r', encoding=None, errors='strict', buffering=1) Open an encoded file using the given mode