Add a Python 3.x script interpreter

[sgallou]

Python 2.7 seems to become obsolete, add a Python 3.x script interpreter

[sgallou]

Developed but not tested.
Need to update build systems :

• Update CMake to last version
• In CMakeListsUserConfig.txt, add :
  • set(PYTHON27_ROOT "xxxx")
  • set(PYTHON3_ROOT "xxxx")
  • keep : set(PYTHON_ROOT "xxxx")
• Optional : update other dependencies (boost, poco, protobuf, etc...)

[jano42]

How to update CMakeListsUserConfig.txt when using dpkg mode ?

set(PYTHON_USE_PKGCONFIG ON)
set(PYTHON_USE_SOURCES OFF)

[sgallou]

I think you can't use dpkg mode with the both python interpreters...

[jano42]

Fixed in develop branch

[sgallou]

Interpreters (2.7 & 3) doesn't work on Linux and Mac. Must understand why (=> SG).

But should we :

• Embed Python with Yadoms ? Be careful to cross-build (=> to be tested by JMD), and don't forget to provide pip)
• Add .ini file to let user to specify python executable path ?

[jano42]

Both !

One to be sure all is working as expected in nominal case.
The second, if too hard to embed python (some obscur platform) or user want to test another version of python

[sgallou]

Add .ini (specific to interpreter) to provide Python executable folder, and use it by default.

[sgallou]

Specific ini file to interpreter is problematic : this kind of file can not be backuped (no saved 'data' folder like for plugins), and isolated in yadoms executable hierarchy.
I suggest to add the forced paths in the general yadoms.ini file.

[jano42]

Yes it easier
In yadoms.ini file you could provide a section of config for interpreters

For example:

[interpreter/python2]
pyhtonPath=.....

[interpreter/python3]
pyhtonPath=.....

[sgallou]

Fixed by 9454b69
Need to be tested on all platforms

[oben01]

python 2.7 and python 3 are installed by default in mac OS Catallina.
test python 2.7 ==> OK
test python 3.7.3 ==> OK
blokly => OK

tests are made from develop branch

[oben01]

@sgallou do you need me to install another python 3 version by hand and test it ?

[sgallou]

@sgallou do you need me to install another python 3 version by hand and test it ?

No, 3.7.3 is OK. Thanks for your test.