Mercurial > p > roundup > code
view roundup/anypy/random_.py @ 7819:0fe2b9f6e19f
issue2551212 - enable wsgi cache_tracker by default
Switch the code so the wsgi cache_tracker optimization is enabled by
default. Leave the unoptimized/uncached code path available in case it
breaks something. The feature flag can be set to False to disable
caching.
Updated tests to test the disabled (non-cache) code path.
Updated upgrading.txt with info on how to disable caching.
| author | John Rouillard <rouilj@ieee.org> |
|---|---|
| date | Wed, 20 Mar 2024 17:13:30 -0400 |
| parents | f002747b6773 |
| children |
line wrap: on
line source
# ruff: noqa: ARG001 try: from secrets import choice, randbelow, token_bytes def seed(v=None): pass is_weak = False except ImportError: import os as _os import random as _random # prefer to use SystemRandom if it is available if hasattr(_random, 'SystemRandom'): def seed(v=None): pass _r = _random.SystemRandom() is_weak = False else: # don't completely throw away the existing state, but add some # more random state to the existing state def seed(v=None): # ruff: noqa: PLC0415 import os import time _r.seed((_r.getstate(), v, hasattr(os, 'getpid') and os.getpid(), time.time())) # create our own instance so we don't mess with the global # random number generator _r = _random.Random() seed() is_weak = True choice = _r.choice def randbelow(i): return _r.randint(0, i - 1) if hasattr(_os, 'urandom'): def token_bytes(size): return _os.urandom(size) else: def token_bytes(size): _bchr = chr if str is bytes else lambda x: bytes((x,)) return b''.join([_bchr(_r.getrandbits(8)) for i in range(size)])
