annotate roundup/anypy/random_.py @ 7971:fe0348bbe45b

issue2551353 - Add roundup-classhelper for 2.4.0 release Changes to the classic template are not done yet. Still testing. This commit has document updates and changes to rest.py. rest.py: add /rest/data/user/role endpoint to core so the user doesn't have to add the /rest/roles endpoint via interfaces.py. It will only send roles for a user with Admin role and there is no way to override this currently. acknowledgements.txt: Added members of team3 to other contributors. Specified for all other contributes what they worked on. upgrading.txt: added classhelper section and basic template change directions. Linked to admin_guide for full directions. admin_guide.txt: documented install, translation, troubleshooting, config etc. user_guide.txt: added section on using the classhelper. Added reference to section earlier in the doc. Added image for section.
author John Rouillard <rouilj@ieee.org>
date Tue, 21 May 2024 01:17:28 -0400
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1 # ruff: noqa: ARG001
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2 try:
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3 from secrets import choice, randbelow, token_bytes
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4
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5 def seed(v=None):
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6 pass
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7
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8 is_weak = False
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9 except ImportError:
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10 import os as _os
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11 import random as _random
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12
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13 # prefer to use SystemRandom if it is available
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14 if hasattr(_random, 'SystemRandom'):
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15 def seed(v=None):
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16 pass
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17
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18 _r = _random.SystemRandom()
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19 is_weak = False
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20 else:
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21 # don't completely throw away the existing state, but add some
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22 # more random state to the existing state
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23 def seed(v=None):
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24 # ruff: noqa: PLC0415
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25 import os
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26 import time
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27 _r.seed((_r.getstate(),
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28 v,
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29 hasattr(os, 'getpid') and os.getpid(),
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30 time.time()))
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31
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32 # create our own instance so we don't mess with the global
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33 # random number generator
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34 _r = _random.Random()
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35 seed()
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36 is_weak = True
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37
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38 choice = _r.choice
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39
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40 def randbelow(i):
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41 return _r.randint(0, i - 1)
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42
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43 if hasattr(_os, 'urandom'):
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44 def token_bytes(size):
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45 return _os.urandom(size)
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46 else:
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47 def token_bytes(size):
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48 _bchr = chr if str is bytes else lambda x: bytes((x,))
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49 return b''.join([_bchr(_r.getrandbits(8)) for i in range(size)])

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