Description:
History:
  In LibreOffice 6.3 running on Windows 10, I had installed "pip" into LibreOffice's embedded python without any problem.  I recently upgraded to LO 6.4.0.3 and noticed the embedded python version is now 3.7.6. Thus, python modules I had previously installed thus needed to be reinstalled, including "pip". I began to do that, but ...

Problem:
Installing pip into the new embedded python version 3.7.6 fails with error message:
   ModuleNotFoundError: No module named '_queue'
It appears that module "_queue.pyd" is missing from the python version 3.7.6 files that are embedded in the Windows LibreOffice 6.4.0.3 distribution?

While investigating, I located the _queue.pyd module at: https://www.python.org/ftp/python/3.7.6/python-3.7.6-embed-amd64.zip  .  I extracted it from the zip file and copied it into directory "C:\Program Files\LibreOffice\program\python-core-3.7.6\lib\". I was then able to install pip successfully.

Steps to Reproduce:
1. Install LibreOffice 6.4.0.3 (in my case, I upgraded from LO 6.3)
2. Install python "pip" utility into LibreOffice's embedded python (version 3.7.6) using instructions from https://pip.pypa.io/en/stable/installing/.  I did this by opening a Windows 10 (admin) powershell and entering following commands:
  2a.   cd C:\Program Files\LibreOffice\program\
  2b.   curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
  2c.   .\python.exe .\get-pip.py

Actual Results:
After step 2c, see following traceback:


PS C:\Program Files\LibreOffice\program> .\python.exe .\get-pip.py
Traceback (most recent call last):
  File ".\get-pip.py", line 22711, in <module>
    main()
  File ".\get-pip.py", line 198, in main
    bootstrap(tmpdir=tmpdir)
  File ".\get-pip.py", line 82, in bootstrap
    from pip._internal.cli.main import main as pip_entry_point
  File "C:\Users\gax\AppData\Local\Temp\tmpsnual8e6\pip.zip\pip\_internal\cli\main.py", line 10, in <module>
  File "C:\Users\gax\AppData\Local\Temp\tmpsnual8e6\pip.zip\pip\_internal\cli\autocompletion.py", line 9, in <module>
  File "C:\Users\gax\AppData\Local\Temp\tmpsnual8e6\pip.zip\pip\_internal\cli\main_parser.py", line 7, in <module>
  File "C:\Users\gax\AppData\Local\Temp\tmpsnual8e6\pip.zip\pip\_internal\cli\cmdoptions.py", line 31, in <module>
  File "C:\Users\gax\AppData\Local\Temp\tmpsnual8e6\pip.zip\pip\_internal\utils\ui.py", line 20, in <module>
  File "C:\Users\gax\AppData\Local\Temp\tmpsnual8e6\pip.zip\pip\_internal\utils\logging.py", line 9, in <module>
  File "C:\Program Files\LibreOffice\program\python-core-3.7.6\lib\logging\handlers.py", line 28, in <module>
    import queue
  File "C:\Program Files\LibreOffice\program\python-core-3.7.6\lib\queue.py", line 16, in <module>
    from _queue import Empty
ModuleNotFoundError: No module named '_queue'
PS C:\Program Files\LibreOffice\program>

Expected Results:
PS C:\Program Files\LibreOffice\program> .\python.exe .\get-pip.py
Collecting pip
  Using cached pip-20.0.2-py2.py3-none-any.whl (1.4 MB)
Collecting setuptools
  Downloading setuptools-45.1.0-py3-none-any.whl (583 kB)
     |████████████████████████████████| 583 kB 328 kB/s
Collecting wheel
  Downloading wheel-0.34.2-py2.py3-none-any.whl (26 kB)
Installing collected packages: pip, setuptools, wheel
  WARNING: The scripts pip.exe, pip3.7.exe and pip3.exe are installed in 'C:\Program Files\LibreOffice\program\python-core-3.7.6\Scripts' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  WARNING: The scripts easy_install-3.7.exe and easy_install.exe are installed in 'C:\Program Files\LibreOffice\program\python-core-3.7.6\Scripts' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
  WARNING: The script wheel.exe is installed in 'C:\Program Files\LibreOffice\program\python-core-3.7.6\Scripts' which is not on PATH.
  Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
Successfully installed pip-20.0.2 setuptools-45.1.0 wheel-0.34.2


Reproducible: Always


User Profile Reset: No



Additional Info:
I suspect the need to include module "_queue.pyd" with embedded python version 3.7.6 is somehow associated with the following python.org change?
   https://bugs.python.org/issue32588  

( see specifically https://bugs.python.org/msg310258 )