readline.get_completer_delims() Set or get the word delimiters for completion. These determine the start of the word to be considered for completion (the completion scope). These functions access the rl_completer_word_break_characters variable in the underlying library.

readline.get_completer() Get the completer function, or None if no completer function has been set.

readline.get_begidx() readline.get_endidx() Get the beginning or ending index of the completion scope. These indexes are the start and end arguments passed to the rl_attempted_completion_function callback of the underlying library.

readline.clear_history() Clear the current history. This calls clear_history() in the underlying library. The Python function only exists if Python was compiled for a version of the library that supports it.

readline.append_history_file(nelements[, filename]) Append the last nelements items of history to a file. The default filename is ~/.history. The file must already exist. This calls append_history() in the underlying library. This function only exists if Python was compiled for a version of the library that supports it. New in version 3.5.

readline.add_history(line) Append line to the history buffer, as if it was the last line typed. This calls add_history() in the underlying library.

re.subn(pattern, repl, string, count=0, flags=0) Perform the same operation as sub(), but return a tuple (new_string, number_of_subs_made). Changed in version 3.1: Added the optional flags argument. Changed in version 3.5: Unmatched groups are replaced with an empty string.

re.sub(pattern, repl, string, count=0, flags=0) Return the string obtained by replacing the leftmost non-overlapping occurrences of pattern in string by the replacement repl. If the pattern isn’t found, string is returned unchanged. repl can be a string or a function; if it is a string, any backslash escapes in it are processed. That is, \n is converted to a single newline character, \r is converted to a carriage return, and so forth. Unknown escapes such as \& are left alone. Backrefere

re.split(pattern, string, maxsplit=0, flags=0) Split string by the occurrences of pattern. If capturing parentheses are used in pattern, then the text of all groups in the pattern are also returned as part of the resulting list. If maxsplit is nonzero, at most maxsplit splits occur, and the remainder of the string is returned as the final element of the list. >>> re.split('\W+', 'Words, words, words.') ['Words', 'words', 'words', ''] >>> re.split('(\W+)', 'Words, words, wor

re.search(pattern, string, flags=0) Scan through string looking for the first location where the regular expression pattern produces a match, and return a corresponding match object. Return None if no position in the string matches the pattern; note that this is different from finding a zero-length match at some point in the string.