Observing a Python path Issue with Git based Compile

[vikramuk]

Describe the bug
environment variables are sourced but Python version is different when/with cmake runs

To Reproduce
Steps to reproduce the behavior:
using Gitbash to set environment and start build.

$ cmake -GNinja -DBOARD=stm32_min_dev
CMake Error at C:/ProgApps/cmake-3.13.1-win64-x64/share/cmake-3.13/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
Could NOT find PythonInterp: Found unsuitable version "1.4", but required
is at least "3.4" (found C:/ProgApps/Anaconda/python.exe)
Call Stack (most recent call first):
C:/ProgApps/cmake-3.13.1-win64-x64/share/cmake-3.13/Modules/FindPackageHandleStandardArgs.cmake:376 (_FPHSA_FAILURE_MESSAGE)
C:/ProgApps/Zephyr/cmake/backports/FindPythonInterp.cmake:165 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
C:/ProgApps/Zephyr/cmake/app/boilerplate.cmake:95 (include)
CMakeLists.txt:3 (include)

-- Configuring incomplete, errors occurred!

$ bash --version
GNU bash, version 4.4.19(2)-release (x86_64-pc-msys)
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html

This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

$ where python
C:\ProgApps*Py37*\python.exe

Expected behavior
Able to compile and generate binary for STM32 similar to https://docs.zephyrproject.org/latest/boards/arm/stm32_min_dev/doc/stm32_min_dev.html

Impact
not able to compile on windows.

Screenshots or console output

Environment (please complete the following information):

• OS: Windows 10 Enterprise
• Toolchain
  VERSION_MAJOR = 1
  VERSION_MINOR = 13
  PATCHLEVEL = 99
  VERSION_TWEAK = 0
  EXTRAVERSION = d62e861

Additional context
Unable to configure the Python environment for Build to complete.
![gitbasherror](https://user-images.githubusercontent.com/4569591/49938156-08a5cf80-feff-11e8-8d77-0e1393a38e
samples-hello_world.zip
c4.png)

[carlescufi]

@vikramuk can you please describe what the issue is?

[vikramuk]

I know it might be a configuration issue.. but just want someone to update if there have been similar issues during start-up.

[SebastianBoe]

I don't think using 'bash' (MSYS) on Windows is supported. Can you reproduce the issue with cmd.exe?

[carlescufi]

@SebastianBoe bash is indeed not supported, only cmd.exe.

@vikramuk if you want to discuss the relevant forums are the mailing lists and Slack channels. Unless you have a clear description please close this issue and ask for help in the places mentioned.
Sorry, I now see you described the issue. Unfortunately Git bash is currently not supported in Zephyr. Can you please try using cmd.exe and then verify if the issue is still present? You can also open a new ticket with a feature request to support building from Git Bash.

[vikramuk]

Hi,
I still see the Error after running Zephyr-env.cmd

C:\ProgApps\Zephyr\samples\hello_world>cmake -GNinja -DBOARD=stm32_min_dev
CMake Error at C:/ProgApps/cmake-3.13.1-win64-x64/share/cmake-3.13/Modules/FindPackageHandleStandardArgs.cmake:137 (message):
Could NOT find PythonInterp: Found unsuitable version "1.4", but required
is at least "3.4" (found C:/ProgApps/Anaconda/python.exe)
Call Stack (most recent call first):
C:/ProgApps/cmake-3.13.1-win64-x64/share/cmake-3.13/Modules/FindPackageHandleStandardArgs.cmake:376 (_FPHSA_FAILURE_MESSAGE)
C:/ProgApps/Zephyr/cmake/backports/FindPythonInterp.cmake:165 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
C:/ProgApps/Zephyr/cmake/app/boilerplate.cmake:95 (include)
CMakeLists.txt:3 (include)

-- Configuring incomplete, errors occurred!

[SebastianBoe]

could you run "C:> where python" ? And "--version" on each of the programs found.

And do the same for 'python3'.

We need to prove that it should be possible for FindPythonInterp.cmake to find an appropriate version.

EDIT: Nevermind, I found the bug. Will fix.

[vikramuk]

I ran the same with Qemu ..
Directory of C:\ProgApps\Zephyr\samples\synchronization

12/06/2018 04:47 PM

.
12/06/2018 04:47 PM ..
12/06/2018 04:47 PM 175 CMakeLists.txt
12/06/2018 04:47 PM 75 prj.conf
12/06/2018 04:47 PM 1,015 README.rst
12/06/2018 04:47 PM 696 sample.yaml
12/06/2018 04:47 PM src
4 File(s) 1,961 bytes
3 Dir(s) 435,901,440,000 bytes free

C:\ProgApps\Zephyr\samples\synchronization>mkdir build

C:\ProgApps\Zephyr\samples\synchronization>cmake -GNinja -DBOARD=qemu_x86
-- Found PythonInterp: C:/ProgApps/Py37/python.exe (found suitable version "3.7.1", minimum required is "3.4")
CMake Error at C:/ProgApps/Zephyr/cmake/app/boilerplate.cmake:102 (message):
Source directory equals build directory. In-source builds are not
supported. Please specify a build directory, e.g. cmake -Bbuild -H.
Call Stack (most recent call first):
CMakeLists.txt:3 (include)

-- Configuring incomplete, errors occurred!

_C:\ProgApps\Zephyr\samples\synchronization>where python
C:\ProgApps\Py37\python.exe

C:\ProgApps\Zephyr\samples\synchronization>where python3
INFO: Could not find files for the given pattern(s)._