New submission from STINNER Victor:

While reading the patch attached to #19170, I saw that telnetlib uses 
time.time() to compute a timeout. This is wrong: the system clock may jump 
forward or backward (ex: summer/winter time, NTP adjust, manual clock change by 
the administrator, etc.).

time.monotonic() should be used instead. I will work on a patch when #19170 
will be fixed (just to avoid conflicts).

----------
messages: 200834
nosy: haypo, neologix
priority: normal
severity: normal
status: open
title: telnetlib: time.monotonic() should be used instead of time.time() for 
timeout
versions: Python 3.3, Python 3.4

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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue19339>
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