[Python-Dev] Location of CI for Windows Embeddable Distro

Gerald Wiltse jerrywiltse at gmail.com
Fri May 3 11:55:12 EDT 2019

Ok, disregard previous message.  I fixed the PYTHONPATH in my command
and the .pyc files and .  I also saw that python36._pth is specifically
only supported by windows.

Now i'm moved on to the following error:

zipimport.ZipImportError: can't decompress data; zlib not available

I'm on Ubuntu.  I've definitely got zlib1g-dev package installed, and I've
recompiled a number of times trying to get it to work.  I've tried Ubuntu
16 and 18.

Is this just a limitation on linux?

Gerald R. Wiltse
jerrywiltse at gmail.com

On Thu, May 2, 2019 at 4:29 PM Gerald Wiltse <jerrywiltse at gmail.com> wrote:

> Just an update based on testing.  If I zip the modules up into
> python36.zip (whether in .py or .pyc form) the linux binary does not find
> them.  If I copy them into the embedded root, alongside the python
> executable, it finds them as expected.
> This just makes it seem more like an issue where Linux binary does not
> respect .zip file as a source of modules.
> Gerald R. Wiltse
> jerrywiltse at gmail.com
> On Thu, May 2, 2019 at 2:56 PM Gerald Wiltse <jerrywiltse at gmail.com>
> wrote:
>> With minimal patching of tools/msi/make_zip.py, I was able to create an
>> equivalent zip package on Linux.  It doesn't work out of the box of
>> course.  I had to do two commands
>> My biggest concern is that even if the layout is "correct" on linux, the
>> python runtime might not actually support being run like this on Linux.
>> Perhaps the code for using python36.zip as a landmark and source of modules
>> is only implemented on Windows.  Do you know if that is the case?
>>     tmp$ export LD_LIBRARY_PATH=$(pwd)
>>     tmp$ export PYTHONHOME=$(pwd)
>>     tmp$ export PYTHONPATH=$(pwd)
>>     tmp$ ./python
>>     Fatal Python error: Py_Initialize: Unable to get the locale encoding
>>     ModuleNotFoundError: No module named 'encodings'
>>     Current thread 0x00007fdde9eb1680 (most recent call first):
>>     Aborted (core dumped)
>> Here's the full directory structure, error, and patch I created. Any
>> additional feedback would be great.
>> https://gist.github.com/solvingj/87305e0f70e14d738d6989ba2f41352f
>> Gerald R. Wiltse
>> jerrywiltse at gmail.com
>> On Thu, May 2, 2019 at 11:24 AM Gerald Wiltse <jerrywiltse at gmail.com>
>> wrote:
>>> I've successfully automated the build of the embedded zip on Windows for
>>> 3.6 on my internal CI using tools/msi script.
>>> Moving onto linux, can you please summarize the primary
>>> challenges/differences for creating the embeddable zip for linux?
>>> Gerald R. Wiltse
>>> jerrywiltse at gmail.com
>>> On Wed, May 1, 2019 at 2:47 PM Gerald Wiltse <jerrywiltse at gmail.com>
>>> wrote:
>>>> Yes, I'll help with this, and I try to get signed up with an account
>>>> for the issue tracker ASAP.
>>>> I've just started trying to build create the embeddable package for
>>>> windows locally (all from source).  Once I have that automated, I'll take a
>>>> naive stab at the Linux layout.  I'm sure i'll soon hit the additional
>>>> complications you're talking about and come back to you with questions.
>>>> Gerald R. Wiltse
>>>> jerrywiltse at gmail.com
>>>> On Wed, May 1, 2019 at 1:57 PM Steve Dower <steve.dower at python.org>
>>>> wrote:
>>>>> On 01May2019 1305, Gerald Wiltse wrote:
>>>>> > That does help, thanks so much for the fast response!  I now see how
>>>>> > it's executed on Azure pipelines also, so that should be enough for
>>>>> me
>>>>> > to reverse engineer the rest.
>>>>> >
>>>>> > Followup questions if you have time:
>>>>> > 1. It seems that directory doesn't exist in the 3.6 branches/tags,
>>>>> so it
>>>>> > must have been done a different way back then.  Do you think it's
>>>>> > back-portable to 3.6?
>>>>> Yep, it should work with 3.6. There were scripts under Tools/msi back
>>>>> then that did the same thing, but with the Store app I rewrote it to
>>>>> be
>>>>> more flexible.
>>>>> > 2. One of our objectives is to effectively create a nearly identical
>>>>> > embeddable package for linux. Do you think the layout code is
>>>>> generic
>>>>> > enough to be modified to create a linux equivalent?
>>>>> Probably not, it's under the "PC" directory because it is entirely
>>>>> CPython specific.
>>>>> I'd love to be able to have a similar embeddable distro for Linux (and
>>>>> macOS), and I'll be investing some of my time in working towards this,
>>>>> but it's far more complicated than simply laying out the right files.
>>>>> If
>>>>> you're interested in helping with this, then we're in the right place
>>>>> to
>>>>> discuss it, but we'll likely have to move to the issue tracker at some
>>>>> point once we figure out who else wants/needs to be involved.
>>>>> > Obviously, there are many alternative methods and documents for
>>>>> creating
>>>>> > "embeddable" pythons on linux, but the windows package has all the
>>>>> > characteristics we want, and of course we'd like our Windows and
>>>>> Linux
>>>>> > process build and packaging processes to be as similar as possible,
>>>>> so
>>>>> > it seems attractive to try to port this layout script to linux.
>>>>> "make install" already does the same thing, but the install location
>>>>> matters at build time, so it's a little more complex to make it work
>>>>> as
>>>>> an embedded runtime. I'm sure there are people who know how to make it
>>>>> work though.
>>>>> Cheers,
>>>>> Steve
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