Mercurial > p > roundup > code
annotate roundup/anypy/random_.py @ 5814:bd6d41f21a5a
More extensive EditCSV testing.
Uses test object to cover all types defined by database.
Also check for an error with a row that's too short.
CSV starts with blank line to verify that it recognises header line.
Changes password, date, int, link and other fields.
Deletes row and verified that it is retired.
Make actions.py properly handle emptying of password field.
| author | John Rouillard <rouilj@ieee.org> |
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| date | Fri, 14 Jun 2019 21:26:19 -0400 |
| parents | 52cb53eedf77 |
| children | adf54478cdaf |
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1 try: |
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2 from secrets import choice, randbelow, token_bytes |
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3 def seed(v = None): |
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4 pass |
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5 |
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6 is_weak = False |
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7 except ImportError: |
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8 import os as _os |
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9 import random as _random |
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10 |
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11 # prefer to use SystemRandom if it is available |
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12 if hasattr(_random, 'SystemRandom'): |
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13 def seed(v = None): |
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14 pass |
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15 |
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16 _r = _random.SystemRandom() |
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17 is_weak = False |
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18 else: |
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19 # don't completely throw away the existing state, but add some |
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20 # more random state to the existing state |
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21 def seed(v = None): |
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22 import os, time |
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23 _r.seed((_r.getstate(), |
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24 v, |
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25 hasattr(os, 'getpid') and os.getpid(), |
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26 time.time())) |
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27 |
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28 # create our own instance so we don't mess with the global |
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29 # random number generator |
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30 _r = _random.Random() |
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31 seed() |
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32 is_weak = True |
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33 |
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34 choice = _r.choice |
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35 |
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36 def randbelow(i): |
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37 return _r.randint(0, i - 1) |
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38 |
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39 if hasattr(_os, 'urandom'): |
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40 def token_bytes(l): |
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41 return _os.urandom(l) |
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42 else: |
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43 def token_bytes(l): |
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44 _bchr = chr if str == bytes else lambda x: bytes((x,)) |
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45 return b''.join([_bchr(_r.getrandbits(8)) for i in range(l)]) |
