NameError: name fcntl is not defined on Windows 10 with Python 3.8

[mloskot]

TL;TR: Does jpterm support Windows?

I tried it on Windows 10 with built-in installation of Python inside PowerShell console and it failed:

❯ python -c 'import jpterm; print(jpterm.__version__)'
0.2.1

❯ python
Python 3.8.6 (tags/v3.8.6:db45529, Sep 23 2020, 15:52:53) [MSC v.1927 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import jpterm
>>> jpterm.main()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\mateuszl\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\jpterm.py", line 226, in main
    screen = urwid.raw_display.Screen()
  File "C:\Users\mateuszl\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\urwid\raw_display.py", line 85, in __init__
    fcntl.fcntl(self._resize_pipe_rd, fcntl.F_SETFL, os.O_NONBLOCK)
NameError: name 'fcntl' is not defined

❯ az vm list --output json | python -c 'import jpterm; jpterm.main()'
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "C:\Users\mateuszl\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\jpterm.py", line 221, in main
    input_json = _load_input_json(getattr(args, 'input-json', None))
  File "C:\Users\mateuszl\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.8_qbz5n2kfra8p0\LocalCache\local-packages\Python38\site-packages\jpterm.py", line 189, in _load_input_json
    sys.stdin = open(os.ctermid(), 'r')
AttributeError: module 'os' has no attribute 'ctermid'

[Fabioamd87]

I have this issue trying to install on Windows 10 with python 3.10.2:

`PS C:\Users\fabio.sasso> pip install jmespath-terminal Collecting jmespath-terminal Using cached jmespath-terminal-0.2.1.tar.gz (6.3 kB) Preparing metadata (setup.py) ... done Collecting jmespath<=1.0.0,>=0.4.1 Using cached jmespath-0.10.0-py2.py3-none-any.whl (24 kB) Collecting Pygments<3.0,>=2.0 Using cached Pygments-2.11.2-py3-none-any.whl (1.1 MB) Collecting urwid==1.2.2 Using cached urwid-1.2.2.tar.gz (585 kB) Preparing metadata (setup.py) ... error error: subprocess-exited-with-error

× python setup.py egg_info did not run successfully. │ exit code: 1 ╰─> [27 lines of output] Traceback (most recent call last): File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.752.0_x64qbz5n2kfra8p0\lib\distutils\core.py", line 108, in setup _setup_distribution = dist = klass(attrs) File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.752.0_x64qbz5n2kfra8p0\lib\site-packages\setuptools\dist.py", line 453, in init _Distribution.init( File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.752.0_x64qbz5n2kfra8p0\lib\distutils\dist.py", line 292, in init self.finalize_options() File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.752.0_x64__qbz5n2kfra8p0\lib\site-packages\setuptools\dist.py", line 831, in finalize_options ep(self) File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.752.0_x64qbz5n2kfra8p0\lib\site-packages\setuptools\dist.py", line 852, in _finalize_setup_keywords ep.load()(self, ep.name, value) File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.752.0_x64__qbz5n2kfra8p0\lib\site-packages\setuptools\dist.py", line 296, in invalid_unless_false raise DistutilsSetupError(f"{attr} is invalid.") distutils.errors.DistutilsSetupError: use_2to3 is invalid.

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "C:\Users\fabio.sasso\AppData\Local\Temp\pip-install-xp7j2l7j\urwid_d93aec0609eb42dab1a6c2aa4a77d6a8\setup.py", line 85, in <module>
      setup(**setup_d)
    File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.752.0_x64__qbz5n2kfra8p0\lib\site-packages\setuptools\__init__.py", line 153, in setup
      return distutils.core.setup(**attrs)
    File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.752.0_x64__qbz5n2kfra8p0\lib\distutils\core.py", line 113, in setup
      raise SystemExit("error in %s setup command: %s" % \
  SystemExit: error in urwid setup command: use_2to3 is invalid.
  error in urwid setup command: use_2to3 is invalid.
  Couldn't build the extension module, trying without it...
  [end of output]

note: This error originates from a subprocess, and is likely not a problem with pip. error: metadata-generation-failed

× Encountered error while generating package metadata. ╰─> See above for output.

note: This is an issue with the package mentioned above, not pip. hint: See above for details.`

[posthuma]

@Fabioamd87 I was able to reproduce this error message and this post, solves by installing a previous version of setuptools that still has the command.

pip install setuptools==57.5.0

I was able to install the jmespath-terminal through pip without issue after that.

This workaround would be needed until this PR or something similar is merged to solve the issue.