pipenv with production-only dependencies

Similar to issue #2729, I am also using tensorflow. Unfortunately, my dev and prod setups both run linux and are separated effectively only by the presence of GPUs. Having read PEP 508, I don’t believe there is enough information in the markers language to distinguish these systems. Is there some other way that future versions of pipenv can select dependencies? Perhaps through a prod-only section, or similar.

e.g.

...
[packages]
foo = "*"

[prod-packages]
tensorflow-gpu = "*"

[dev-packages]
tensorflow = "*"
...

where [prod-packages] are only installed if --dev is missing?

_Originally posted by @dmillard in https://github.com/pypa/pipenv/issues/2729#issuecomment-426514834_

[frostming]

@michael-angelozzi Write your Pipfile as below:

# ...
uwsgi = {version="*", sys_platform="!='win32'"}

Then uwsgi will be skipped on Windows

[mangelozzi]

I have a use case where the production setup uses uwsgi, which is not available for windows (my dev setup). Every time I install a new package on my dev machine I get this error because uwsgi is not available for windows:

pipenv install django-debug-toolbar --dev --skip-lock
Installing django-debug-toolbar…
Adding django-debug-toolbar to Pipfile's [dev-packages]…
Installation Succeeded
Installing dependencies from Pipfile…

An error occurred while installing uwsgi! Will try again.
  ================================ 14/14 - 00:00:08
Installing initially failed dependencies…
[pipenv.exceptions.InstallError]:   File "c:\users\michael\appdata\local\programs\python\python37\lib\site-packages\pipenv\core.py", line 1992, in do_install
[pipenv.exceptions.InstallError]:       skip_lock=skip_lock,
[pipenv.exceptions.InstallError]:   File "c:\users\michael\appdata\local\programs\python\python37\lib\site-packages\pipenv\core.py", line 1253, in do_init
[pipenv.exceptions.InstallError]:       pypi_mirror=pypi_mirror,
[pipenv.exceptions.InstallError]:   File "c:\users\michael\appdata\local\programs\python\python37\lib\site-packages\pipenv\core.py", line 859, in do_install_dependencies
[pipenv.exceptions.InstallError]:       retry_list, procs, failed_deps_queue, requirements_dir, **install_kwargs
[pipenv.exceptions.InstallError]:   File "c:\users\michael\appdata\local\programs\python\python37\lib\site-packages\pipenv\core.py", line 763, in batch_install
[pipenv.exceptions.InstallError]:       _cleanup_procs(procs, not blocking, failed_deps_queue, retry=retry)
[pipenv.exceptions.InstallError]:   File "c:\users\michael\appdata\local\programs\python\python37\lib\site-packages\pipenv\core.py", line 681, in _cleanup_procs
[pipenv.exceptions.InstallError]:       raise exceptions.InstallError(c.dep.name, extra=err_lines)
[pipenv.exceptions.InstallError]: ['Collecting uwsgi', '  Using cached https://files.pythonhosted.org/packages/e7/1e/3dcca007f974fe4eb369bf1b8629d5e342bb3055e2001b2e5340aaefae7a/uwsgi-2.0.18.tar.gz']
[pipenv.exceptions.InstallError]: ['ERROR: Command errored out with exit status 1:', '     command: \'c:\\users\\michael\\.virtualenvs\\project-cdrggqjy\\scripts\\python.exe\' -c \'import sys, setuptools, tokenize; sys.argv[0] = \'"\'"\'C:\\\\Users\\\\Michael\\\\AppData\\\\Local\\\\Temp\\\\pip-install-obyvf2lq\\\\uwsgi\\\\setup.py\'"\'"\'; __file__=\'"\'"\'C:\\\\Users\\\\Michael\\\\AppData\\\\Local\\\\Temp\\\\pip-install-obyvf2lq\\\\uwsgi\\\\setup.py\'"\'"\';f=getattr(tokenize, \'"\'"\'open\'"\'"\', open)(__file__);code=f.read().replace(\'"\'"\'\\r\\n\'"\'"\', \'"\'"\'\\n\'"\'"\');f.close();exec(compile(code, __file__, \'"\'"\'exec\'"\'"\'))\' egg_info --egg-base pip-egg-info', '         cwd: C:\\Users\\Michael\\AppData\\Local\\Temp\\pip-install-obyvf2lq\\uwsgi\\', '    Complete output (7 lines):', '    Traceback (most recent call last):', '      File "<string>", line 1, in <module>', '      File "C:\\Users\\Michael\\AppData\\Local\\Temp\\pip-install-obyvf2lq\\uwsgi\\setup.py", line 3, in <module>', '        import uwsgiconfig as uc', '      File "C:\\Users\\Michael\\AppData\\Local\\Temp\\pip-install-obyvf2lq\\uwsgi\\uwsgiconfig.py", line 8, in <module>', '        uwsgi_os = os.uname()[0]', "    AttributeError: module 'os' has no attribute 'uname'", '    ----------------------------------------', 'ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.']
ERROR: ERROR: Package installation failed...
     ================================ 0/1 - 00:00:04

I hence I have never had an error free installation using pipenv on my dev computer.

EDIT: My situation was solved by using markers. However one could have a linux dev env which one doesnt want to install uwsgi.