[BrianB]

I am trying to build v7.0.5, after following the steps on the guide I received the following error:

$ ./meson.py build
Traceback (most recent call last):
  File "./meson.py", line 85, in <module>
    sys.exit(mesonmain.main())
  File "depot/data/SU2_v7/SU2_v7_source/externals/meson/mesonbuild/mesonmain.py", line 228, in main
    return run(sys.argv[1:], launcher)
  File "depot/data/SU2_v7/SU2_v7_source/externals/meson/mesonbuild/mesonmain.py", line 219, in run
    return CommandLineParser().run(args)
  File "depot/data/SU2_v7/SU2_v7_source/externals/meson/mesonbuild/mesonmain.py", line 44, in __init__
    help_msg='Configure the project')
  File "depot/data/SU2_v7/SU2_v7_source/externals/meson/mesonbuild/mesonmain.py", line 82, in add_command
    p = self.subparsers.add_parser(name, help=help_msg, aliases=aliases, formatter_class=self.formatter)
  File "/apps/cent7/xalt/libexec/argparse.py", line 1085, in add_parser
    parser = self._parser_class(**kwargs)
TypeError: __init__() got an unexpected keyword argument 'aliases'

[pcg]

What version of python do you have? I think you need 3.5 or later.

[BrianB]

I'm using Python 3.6.8

[pcg]

Hmm, googling this "got an unexpected keyword argument 'aliases'" points to python2 vs python3 problems, try running meson.py with python3 explicitly (python3 ./meson.py build) if that does not work maybe open an issue on SU2's github.

[atelcikti1]

In github says the safest version of python is >=3.7, you can get an error in ninja compilation in lower versions. Also, you don't forget to point correct version of python, you can write into your bash ie.


#python version default
alias python='/usr/bin/python3.7'