[issue34442] zlib module not built on windows

[Zachary Ware]

Zachary Ware  added the comment:

With no further explanation of what went wrong, I'm closing the issue.

--
resolution:  -> works for me
stage: test needed -> resolved
status: open -> closed

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[issue34442] zlib module not built on windows

[Stephen Kelly]

New submission from Stephen Kelly :

I tried to build python 3.7.0 from source.

I ran the PCBuild/build.bat script. That downloaded zlib to the external/ 
directory.

However, it does not seem to be built. When running I get:

python\3.7.0\lib\zipfile.py", line 646, in _check_compression   

"Compression requires the (missing) zlib module")   

 
RuntimeError: Compression requires the (missing) zlib module  

I examined PCBuild/pcbuild.proj. It makes no mention of zlib, though it 
mentions other externals.

I notice that Python 3.6.1 contained zlib in Modules/zlib instead of coming 
from external/.

Presumably that source was moved, but the Windows-related scripts were not 
updated.

--
components: Extension Modules
messages: 323791
nosy: steveire
priority: normal
severity: normal
status: open
title: zlib module not built on windows
type: compile error
versions: Python 3.7

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[issue34442] zlib module not built on windows

[Zachary Ware]

Zachary Ware  added the comment:

Hi Stephen,

zlib is built into the core binary (pythonXY.dll) when you build with 
`IncludeExternals`; see PCbuild/pythoncore.vcxproj.  Using PCbuild/build.bat 
should do that automatically (unless you tell it not to), but if it's not we 
may need to fix something.

--
components: +Windows
nosy: +paul.moore, steve.dower, tim.golden, zach.ware
stage:  -> test needed

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[issue34442] zlib module not built on windows

[Terry J. Reedy]

Terry J. Reedy  added the comment:

What precisely does 'running' mean, so that we can try to reproduce?

python -m test.test_zipfile

Runs 208/207 tests in about a minute on the repository debug builds without 
failure for both 3.8 and 3.7.

--
nosy: +terry.reedy

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