Failure on old Pythons

[uranusjr]

Traceback (most recent call last):
  File "/Users/uranusjr/Library/PythonUp/versions/2.7/lib/python2.7/runpy.py", line 174, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/Users/uranusjr/Library/PythonUp/versions/2.7/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/Users/uranusjr/Documents/programming/python/pipenv/pipenv/help.py", line 94, in <module>
    get_pipenv_diagnostics()
  File "/Users/uranusjr/Documents/programming/python/pipenv/pipenv/help.py", line 33, in get_pipenv_diagnostics
    found = finder.find_python_version(python_v)
  File "pipenv/vendor/pythonfinder/pythonfinder.py", line 58, in find_python_version
    major, minor=minor, patch=patch, pre=pre, dev=dev
  File "pipenv/vendor/pythonfinder/models/path.py", line 154, in find_python_version
    path_filter = filter(None, [sub_finder(p) for p in paths])
  File "pipenv/vendor/pythonfinder/models/__init__.py", line 70, in find_python_version
    None, filter(lambda c: version_matcher(py_version(c)), finder)
  File "pipenv/vendor/pythonfinder/models/__init__.py", line 68, in <genexpr>
    finder = (c for c in self.children.values() if is_py(c) and py_version(c))
  File "pipenv/vendor/pythonfinder/models/path.py", line 223, in as_python
    self.py_version = PythonVersion.from_path(self.path)
  File "pipenv/vendor/pythonfinder/models/python.py", line 125, in from_path
    py_version, _ = get_python_version(str(path.path))
  File "pipenv/vendor/pythonfinder/utils.py", line 45, in get_python_version
    return _run(version_cmd)
  File "pipenv/vendor/pythonfinder/utils.py", line 36, in _run
    stderr=subprocess.PIPE,
TypeError: __init__() got an unexpected keyword argument 'encoding'

The encoding argument of subprocess.Popen is only available in Python 3.6 or later.

[techalchemy]

interestingly I actually check for this...

    if six.PY3:
        popen_args['encoding'] = encoding

hmmmm

[uranusjr]

It’s not available on 3.0–3.5 either.