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WSL Does SERV still work with Python 2.7? Version 3.6 not detected #83

@gojimmypi

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@gojimmypi

ok, there are a bunch of wonkiness things going on here (WSL, I know I have python 3.x installed, etc.)

But perhaps pip install fusesoc could detect problems and return a more friendly message?

Here's my out-of-box experience this morning using pip install fusesoc:

gojimmypi:~
$ pip install fusesoc
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7.
Collecting fusesoc
  Downloading https://files.pythonhosted.org/packages/cd/4a/e8564fa709494a62f8de718473c76f8fadb6b5ef1b043dea1b547d0c06d0/fusesoc-1.11.0.tar.gz (101kB)
    100% |████████████████████████████████| 102kB 1.7MB/s
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-install-dUM5YF/fusesoc/setup.py", line 52, in <module>
        python_requires=">=3.5, <4",
      File "/usr/lib/python2.7/dist-packages/setuptools/__init__.py", line 128, in setup
        _install_setup_requires(attrs)
      File "/usr/lib/python2.7/dist-packages/setuptools/__init__.py", line 123, in _install_setup_requires
        dist.fetch_build_eggs(dist.setup_requires)
      File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 513, in fetch_build_eggs
        replace_conflicting=True,
      File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 774, in resolve
        replace_conflicting=replace_conflicting
      File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1057, in best_match
        return self.obtain(req, installer)
      File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1069, in obtain
        return installer(requirement)
      File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 580, in fetch_build_egg
        return cmd.easy_install(req)
      File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 698, in easy_install
        return self.install_item(spec, dist.location, tmpdir, deps)
      File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 724, in install_item
        dists = self.install_eggs(spec, download, tmpdir)
      File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 909, in install_eggs
        return self.build_and_install(setup_script, setup_base)
      File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1177, in build_and_install
        self.run_setup(setup_script, setup_base, args)
      File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1163, in run_setup
        run_setup(setup_script, args)
      File "/usr/lib/python2.7/dist-packages/setuptools/sandbox.py", line 253, in run_setup
        raise
      File "/usr/lib/python2.7/contextlib.py", line 35, in __exit__
        self.gen.throw(type, value, traceback)
      File "/usr/lib/python2.7/dist-packages/setuptools/sandbox.py", line 195, in setup_context
        yield
      File "/usr/lib/python2.7/contextlib.py", line 35, in __exit__
        self.gen.throw(type, value, traceback)
      File "/usr/lib/python2.7/dist-packages/setuptools/sandbox.py", line 166, in save_modules
        saved_exc.resume()
      File "/usr/lib/python2.7/dist-packages/setuptools/sandbox.py", line 141, in resume
        six.reraise(type, exc, self._tb)
      File "/usr/lib/python2.7/dist-packages/setuptools/sandbox.py", line 154, in save_modules
        yield saved
      File "/usr/lib/python2.7/dist-packages/setuptools/sandbox.py", line 195, in setup_context
        yield
      File "/usr/lib/python2.7/dist-packages/setuptools/sandbox.py", line 250, in run_setup
        _execfile(setup_script, ns)
      File "/usr/lib/python2.7/dist-packages/setuptools/sandbox.py", line 44, in _execfile
        code = compile(script, filename, 'exec')
      File "/tmp/easy_install-W_oojy/setuptools_scm-7.0.5/setup.py", line 20
        def scm_version() -> str:
                          ^
    SyntaxError: invalid syntax

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-dUM5YF/fusesoc/
You are using pip version 19.0.2, however version 20.3.4 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
gojimmypi:~
$

Here are some version details:

gojimmypi:~
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 18.04.5 LTS
Release:        18.04
Codename:       bionic
gojimmypi:~
$ python --version
Python 2.7.17
gojimmypi:~
$ python3 --version
Python 3.6.9
gojimmypi:~
$

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