Meson: RuntimeError('No specified compiler can handle file {!s}'.format(src))

[robertsanseries]

Error while trying to run "meson build":

Traceback (most recent call last):
  File "/usr/share/meson/mesonbuild/mesonmain.py", line 307, in run
    app.generate()
  File "/usr/share/meson/mesonbuild/mesonmain.py", line 182, in generate
    g.generate(intr)
  File "/usr/share/meson/mesonbuild/backend/ninjabackend.py", line 194, in generate
    self.generate_target(t, outfile)
  File "/usr/share/meson/mesonbuild/backend/ninjabackend.py", line 439, in generate_target
    obj_list.append(self.generate_single_compile(target, outfile, src, False, [], header_deps))
  File "/usr/share/meson/mesonbuild/backend/ninjabackend.py", line 1987, in generate_single_compile
    compiler = get_compiler_for_source(target.compilers.values(), src)
  File "/usr/share/meson/mesonbuild/mesonlib.py", line 193, in get_compiler_for_source
    raise RuntimeError('No specified compiler can handle file {!s}'.format(src))
RuntimeError: No specified compiler can handle file src/Hawk.pyTraceback (most recent call last):
  File "/usr/share/meson/mesonbuild/mesonmain.py", line 307, in run
    app.generate()
  File "/usr/share/meson/mesonbuild/mesonmain.py", line 182, in generate
    g.generate(intr)
  File "/usr/share/meson/mesonbuild/backend/ninjabackend.py", line 194, in generate
    self.generate_target(t, outfile)
  File "/usr/share/meson/mesonbuild/backend/ninjabackend.py", line 439, in generate_target
    obj_list.append(self.generate_single_compile(target, outfile, src, False, [], header_deps))
  File "/usr/share/meson/mesonbuild/backend/ninjabackend.py", line 1987, in generate_single_compile
    compiler = get_compiler_for_source(target.compilers.values(), src)
  File "/usr/share/meson/mesonbuild/mesonlib.py", line 193, in get_compiler_for_source
    raise RuntimeError('No specified compiler can handle file {!s}'.format(src))
RuntimeError: No specified compiler can handle file src/Hawk.py

File meson.build:

project('com.github.project-hawk.hawk',
    version : '0.1.0',
    license: 'MIT'
)

gnome = import('gnome')
python3 = import('python3')

conf = configuration_data()
conf.set_quoted('GETTEXT_PACKAGE', meson.project_name())
configure_file(output: 'config.h', configuration: conf)
config_h_dir = include_directories('.')

c_args = [
  '-include', 'config.h',
  '-DGWEATHER_I_KNOW_THIS_IS_UNSTABLE',
]

subdir('src')

executable('com.github.project-hawk.hawk',
    Hawk.py,
    c_args: c_args,
    dependencies :[
        dependency('gtk+-3.0')
    ],
    install : true
)

File Hawk.py:

print("teste meson")

[nirbheek]

What do you expect the executable() call there to do?

[robertsanseries]

@nirbheek Creates a new executable. The first argument specifies its name and the remaining positional arguments define the input files to use.

[TingPing]

@robertsanseries, Python isn't a compiled language, you can just use install_data() on them.

[robertsanseries]

@TingPing Can you give me an example? I'm learning Meson.

[TingPing]

Here are a variety of Python projects using Meson:

• https://github.com/TingPing/transmission-remote-gnome
• https://github.com/pithos/pithos/tree/wip/meson
• https://github.com/gnome/gnome-tweak-tool
• https://github.com/gnumdk/lollypop

[robertsanseries]

@TingPing thank you so much! resolved!