[docs] [issue29349] Update old Python 2 code in Docs/tools/extensions/patchlevel.py

[Jim Fasarakis-Hilliard]

New submission from Jim Fasarakis-Hilliard:

There's a hidden Python 2 print call in the script that only gets reached after you move the Doc/ folder outside the main CPython directory and run `make html`. 

Additionally, an obsolete way of assuring a file gets closed is used (changed to use `with` statement).

P.S: Tagged this with the Documentation component, maybe build is more applicable but I wasn't sure.

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assignee: docs at python
components: Documentation
files: patchlevel.patch
keywords: patch
messages: 286065
nosy: Jim Fasarakis-Hilliard, docs at python
priority: normal
severity: normal
status: open
title: Update old Python 2 code in Docs/tools/extensions/patchlevel.py
type: behavior
versions: Python 3.4, Python 3.5, Python 3.6, Python 3.7
Added file: http://bugs.python.org/file46387/patchlevel.patch

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<http://bugs.python.org/issue29349>
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