Pytools are a few interesting things that are missing from the Python 3
Standard Library.
Small tool functions such as:
* len_iterable
* argmin
* tuple generation
* permutation generation
* ASCII table pretty printing
* GvR's mokeypatch_xxx() hack
* The elusive flatten, and much more.
* Michele Simionato's decorator module
* A time-series logging module, pytools.log.
* Batch job submission, pytools.batchjob.
* A lexer, pytools.lex.
