New submission from Jordon Phillips:
In Python 3.6.0 if you give datetime.fromtimestamp a very bad value you either
get a core dump or an OverflowError. The core dump occurs when no tzinfo is
provided, the OverflowError occurs when a tzinfo is provided (such as tzlocal
from dateutil). Attached is a minimal script to reproduce the error. Note that
this behavior only occurs on certain systems. It does not happen on OSX
10.11.6, but it does happen on Ubuntu 12.04. I imagine it happens on other
systems as well, but I haven't tested beyond those two.
Here are the specific errors I get on Ubuntu 12.04. When no tzinfo is provided:
python:
/tmp/python-build.20161228223921.28011/Python-3.6.0/Modules/_datetimemodule.c:251:
days_before_year: Assertion `year >= 1' failed.
Aborted (core dumped)
When a tzinfo is provided:
Traceback (most recent call last):
File "test1.py", line 11, in <module>
datetime.fromtimestamp(bad_st_mtime, local_time_zone)
File
"~/.pyenv/versions/venv36d/lib/python3.6/site-packages/dateutil/tz/_common.py",
line 210, in fromutc
dt_wall = self._fromutc(dt)
File
"~/.pyenv/versions/venv36d/lib/python3.6/site-packages/dateutil/tz/_common.py",
line 195, in _fromutc
return dt + dtdst
OverflowError: date value out of range
I imagine this is related to the fold changes.
----------
components: Library (Lib)
files: test.py
messages: 284218
nosy: Jordon Phillips
priority: normal
severity: normal
status: open
title: Core dump / OverflowError for datetime.fromtimestamp with overly large
timestamp in Ubuntu 12.04
type: behavior
versions: Python 3.6
Added file: http://bugs.python.org/file46068/test.py
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<http://bugs.python.org/issue29100>
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