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[3.6] pythoninfo: ignore OSError(ENOSYS) on getrandom() (GH-3655) #3657

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Merged
vstinner merged 1 commit into from
Sep 19, 2017
Merged

[3.6] pythoninfo: ignore OSError(ENOSYS) on getrandom() (GH-3655) #3657

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17 changes: 12 additions & 5 deletions Lib/test/pythoninfo.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@
Collect various informations about Python to help debugging test failures.
"""
from __future__ import print_function
import errno
import re
import sys
import traceback
Expand Down Expand Up @@ -223,11 +224,17 @@ def format_attr(attr, value):
if hasattr(os, 'getrandom'):
# PEP 524: Check if system urandom is initialized
try:
os.getrandom(1, os.GRND_NONBLOCK)
state = 'ready (initialized)'
except BlockingIOError as exc:
state = 'not seeded yet (%s)' % exc
info_add('os.getrandom', state)
try:
os.getrandom(1, os.GRND_NONBLOCK)
state = 'ready (initialized)'
except BlockingIOError as exc:
state = 'not seeded yet (%s)' % exc
info_add('os.getrandom', state)
except OSError as exc:
# Python was compiled on a more recent Linux version
# than the current Linux kernel: ignore OSError(ENOSYS)
if exc.errno != errno.ENOSYS:
raise


def collect_readline(info_add):
Expand Down