Fix incorrect call assuming that OS python minor version matches hostpython

[ghost]

This fixes a call which makes the incorrect assumption that OS python minor version matches the hostpython's minor version. (which will lead to a build error/crash/backtrace when the minor versions differ, as e.g. described here: https://github.com/JonasT/p4a-build-spaces/issues/4 )

Edit: tested now, works fine for me! would recommend merging

[homdx]

@Jonast

1. You can release feature in p4a-build-spaces,
   like ./p4a-build-spaces --list
   for show avialibly variables (list folders):
   https://github.com/JonasT/p4a-build-spaces/tree/master/src/p4aspaces/environments

2. How I use Another branch and repository for python-for-android wth p4a-build-spaces?
   Maybe, also, you add feature like this: ( or otherwise - depending on your choice):
   ./p4-build-spaces --build-args P4A_REPO=JonasT --build-args P4A_BRANCH=fixbuildpythoncall shell p4a-py3-api28ndk21

[ghost]

@homdx there is already an option for choosing another p4a version/branch, it works like this: --p4a <branchname> (for a github.com/kivy/python-for-android repo branch), or --p4a <full_repo_archive_url> (for a fork/different repo)

Example for the full archive url: --p4a https://github.com/forkinguser/python-for-android/archive/branchname.zip.

For this particular pull request, use --p4a https://github.com/JonasT/python-for-android/archive/fixbuildpythoncall.zip

[homdx]

About pull request:
Python 2 build:)

[INFO]:    -> running bash -c env CC=/bin/false CXX=/bin/false PYTHONPATH=/root/.local/share/python-for-android/build/python-installs/unnamed_dist_3 venv/bin/pip install --target '/root/.local/share/python-for-...(and 75 more)
[INFO]:    <- directory context /root/pydelhi_mobile/pydelhiconf 

Python3: Also build without error

Reccommended for merge to master)

[homdx]

@Jonast

1. You can release feature in p4a-build-spaces,
   like ./p4a-build-spaces --list
   for show avialibly variables (list folders):
   https://github.com/JonasT/p4a-build-spaces/tree/master/src/p4aspaces/environments
   Found))) You realse it:

 ./p4aspaces list-envs
Available environments:
  p4a-py2-api19-ndkbundle
     Python 2 with min/target API 19, bundled NDK 19
  p4a-py2-api28ndk21
     Python 2 with target API 28, bundled NDK 21, min api 21
  p4a-py3-api28ndk21
     Python 3 with target API 28, NDK 21, min api 21
  p4a-py3crystax-api19-ndkbundle
     Python 3 Crystax with min/target API 19, and ndk-bundle for API 19
  p4a-py3crystax-api26ndk19
     Python 3 Crystax with target API 26 and NDK/min api 19

Launch shell with:
  p4aspaces shell p4a-py2-api19-ndkbundle

[homdx]

@homdx there is already an option for choosing another p4a version/branch, it works like this: --p4a <branchname> (for a github.com/kivy/python-for-android repo branch), or --p4a <full_repo_archive_url> (for a fork/different repo)

Example for the full archive url: --p4a https://github.com/forkinguser/python-for-android/archive/branchname.zip.

For this particular pull request, use --p4a https://github.com/JonasT/python-for-android/archive/fixbuildpythoncall.zip

Need added to command line help:

$ ./p4aspaces --arguments --help
usage: p4aspaces [-h] action ...

positional arguments:
  action      The p4a-build-spaces action out of "cmd", "list-envs", "shell"
  arguments   The arguments to the action. Use "p4aspaces <action> --help" to
              see available arguments and options for an action.

optional arguments:
  -h, --help  show this help message and exit
$ ./p4aspaces arguments --help
p4aspaces: error: not a known action: "arguments".
       Available actions are:
        - shell
        - cmd
        - list-envs

[ghost]

@homdx you need to insert the respective action, e.g. p4aspaces cmd --help

[homdx]

@homdx you need to insert the respective action, e.g. p4aspaces cmd --help

But this instruction are missing:

Example for the full archive url: --p4a https://github.com/forkinguser/python-for-android/archive/branchname.zip.

For this particular pull request, use --p4a https://github.com/JonasT/python-for-android/archive/fixbuildpythoncall.zip

[ghost]

@homdx good point, I added more details to the help texts now 👍

[ghost]

thanks for merging ❤️ !