[issue25963] strptime not parsing some timezones

[Andrei Kulakov]

Andrei Kulakov  added the comment:

I'm closing this as fixed, the note in datetime docs is here:

https://docs.python.org/3.9/library/datetime.html

(search for 'only accepts', - note 6)

--
nosy: +kj
resolution:  -> fixed
stage:  -> resolved
status: open -> closed
versions: +Python 3.9 -Python 2.7, Python 3.5, Python 3.6

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[issue25963] strptime not parsing some timezones

[Andrei Kulakov]

Andrei Kulakov  added the comment:

This was fixed so can be closed.

Current datetime docs have a footnote for %Z:

...
strptime() only accepts certain values for %Z:

any value in time.tzname for your machine’s locale

the hard-coded values UTC and GMT

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nosy: +andrei.avk

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[issue25963] strptime not parsing some timezones

[Brett Cannon]

Change by Brett Cannon :


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nosy:  -brett.cannon

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[issue25963] strptime not parsing some timezones

[R. David Murray]

R. David Murray added the comment:

The code is shared by the two modules (it's in _strptime.py).  So, yes.

There is clearly a doc bug here (%Z needs a footnote in the table in the 
datetime docs), but there is no practical way to implement the parsing of 
arbitrary (non-locale) timezone strings, since it is not a one-to-one mapping.

--
assignee:  -> docs@python
components: +Documentation
nosy: +docs@python, r.david.murray
versions: +Python 2.7, Python 3.6

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[issue25963] strptime not parsing some timezones

[Martin Panter]

Martin Panter added the comment:

I suspect the datetime module’s %Z parsing depends on the locale, just like 
time.strptime() does: 
.

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nosy: +martin.panter

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[issue25963] strptime not parsing some timezones

[Utkonos]

New submission from Utkonos:

I get a ValueError when running the following through strptime:

datetime.datetime.strptime('(CST)', '(%Z)')

But the following works:
datetime.datetime.strptime('(EST)', '(%Z)')

PST and MST also trigger the same exception.

--
messages: 257108
nosy: belopolsky, brett.cannon, utkonos
priority: normal
severity: normal
status: open
title: strptime not parsing some timezones
type: behavior
versions: Python 3.5

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