Compiler dosent see the Python interpreter

[Zemogiter]

Output from the cmake gui:

Building Colobot "Gold" (0.2.0+alpha-git-dev~r4f085406)
Build for Linux system
Detected GCC version 4.7+
CMake Warning (dev) at /usr/share/cmake-3.22/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (SDL2main)
  does not match the name of the calling package (SDL2).  This can lead to
  problems in calling code that expects `find_package` result variables
  (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  cmake/FindSDL2.cmake:318 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
  CMakeLists.txt:312 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/share/cmake-3.22/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (SDL2main)
  does not match the name of the calling package (SDL2).  This can lead to
  problems in calling code that expects `find_package` result variables
  (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  cmake/FindSDL2.cmake:318 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
  cmake/FindSDL2_image.cmake:114 (find_package)
  CMakeLists.txt:313 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at /usr/share/cmake-3.22/Modules/FindPackageHandleStandardArgs.cmake:438 (message):
  The package name passed to `find_package_handle_standard_args` (SDL2main)
  does not match the name of the calling package (SDL2).  This can lead to
  problems in calling code that expects `find_package` result variables
  (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  cmake/FindSDL2.cmake:318 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
  cmake/FindSDL2_ttf.cmake:114 (find_package)
  CMakeLists.txt:314 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning at desktop/CMakeLists.txt:8 (message):
  rsvg-convert not found; desktop icons will not be generated


Data directory will install itself.
CMake Error at /usr/share/cmake-3.22/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
  Could NOT find PythonInterp (missing: PYTHON_EXECUTABLE) (Required is at
  least version "2.7")
Call Stack (most recent call first):
  /usr/share/cmake-3.22/Modules/FindPackageHandleStandardArgs.cmake:594 (_FPHSA_FAILURE_MESSAGE)
  /usr/share/cmake-3.22/Modules/FindPythonInterp.cmake:169 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
  data/CMakeLists.txt:6 (find_package)


Configuring incomplete, errors occurred!
See also "/home/jonasz/sources/colobot-dev/build/CMakeFiles/CMakeOutput.log".

All rependencies are installed.
CMakeOutput.log

[tomangelo2]

What distro do you have?

[Zemogiter]

Ubuntu 22.04.2 LTS
Linux 5.19.0-45-generic

[hexagonrecursion]

A workaround (if you do not need the translations)

run cmake -D TRANSLATIONS=OFF instead of cmake before calling make. Alternatively: in the cmake gui there should be an option to "Enable translations of help and level files" - disable it.

The issue

The CMakeLists.txt in the ./data/ folder wants python2 to compile the translations.
https://github.com/colobot/colobot-data/blob/740d40eba624ad755b08fc74b60c721b5f04bc10/CMakeLists.txt#L6

find_package(PythonInterp 2.7 REQUIRED)

Python2 is unsupported since 2020: https://pythonclock.org/

We should migrate to python3. The longer we wait the more people will be unable to build colobot due to missing python2.