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Pipenv can't install black because black is only a pre-release #5171

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Pipenv can't install black because black is only a pre-release#5171
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DonJayamannekarrtikr
Labels
area-formattingfeature-requestRequest for new features or functionalitygood first issue
Milestone
2019 - May Sprint 10
@erinxocon

Description

@erinxocon
erinxocon
opened on Apr 9, 2019

Environment data

  • VS Code version: Version 1.34.0-insider
  • Extension version (available under the Extensions sidebar): 2019.3.6558
  • OS and version: macOS 10.14
  • Python version (& distribution if applicable, e.g. Anaconda): project is using 3.7.2, pyenv with global python set to 3.7.3
  • Type of virtual environment used (N/A | venv | virtualenv | conda | ...): pipenv
  • Relevant/affected Python packages and their versions: black 19.3b0

Expected behaviour

Black installs ok

Actual behaviour

Black fails to install because there are only beta releases and pipenv doesn't look for those by default

Steps to reproduce:

  1. When the popup asks to select a linter, choose black and install it.
  2. Pipenv will fire up and try and install black as a dev package.
  3. Pipenv will fail to install since --pre isn't provided

Logs

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

Formatting with black failed.
You could either install the 'black' formatter, turn it off or use another formatter.
Error: Module 'black' not installed.

Output from Console under the Developer Tools panel (toggle Developer Tools on under Help; turn on source maps to make any tracebacks be useful by running Enable source map support for extension debugging)

Not Applicable

Output from terminal:

pipenv install black --dev      Mon Apr  8 21:53:53 2019
Installing black…
Adding black to Pipfile's [dev-packages]…
✔ Installation Succeeded 
Pipfile.lock not found, creating…
Locking [dev-packages] dependencies…
✘ Locking Failed! 
[pipenv.exceptions.ResolutionFailure]:   File "/Users/erin/.pyenv/versions/3.7.2/lib/python3.7/site-packages/pipenv/resolver.py", line 70, in resolve
[pipenv.exceptions.ResolutionFailure]:       req_dir=requirements_dir
[pipenv.exceptions.ResolutionFailure]:   File "/Users/erin/.pyenv/versions/3.7.2/lib/python3.7/site-packages/pipenv/utils.py", line 746, in resolve_deps
[pipenv.exceptions.ResolutionFailure]:       req_dir=req_dir,
[pipenv.exceptions.ResolutionFailure]:   File "/Users/erin/.pyenv/versions/3.7.2/lib/python3.7/site-packages/pipenv/utils.py", line 500, in actually_resolve_deps
[pipenv.exceptions.ResolutionFailure]:       resolved_tree = resolver.resolve()
[pipenv.exceptions.ResolutionFailure]:   File "/Users/erin/.pyenv/versions/3.7.2/lib/python3.7/site-packages/pipenv/utils.py", line 415, in resolve
[pipenv.exceptions.ResolutionFailure]:       raise ResolutionFailure(message=str(e))
[pipenv.exceptions.ResolutionFailure]:       pipenv.exceptions.ResolutionFailure: ERROR: ERROR: Could not find a version that matches black
[pipenv.exceptions.ResolutionFailure]:       Skipped pre-versions: 18.3a0, 18.3a0, 18.3a1, 18.3a1, 18.3a2, 18.3a2, 18.3a3, 18.3a3, 18.3a4, 18.3a4, 18.4a0, 18.4a0, 18.4a1, 18.4a1, 18.4a2, 18.4a2, 18.4a3, 18.4a3, 18.4a4, 18.4a4, 18.5b0, 18.5b0, 18.5b1, 18.5b1, 18.6b0, 18.6b0, 18.6b1, 18.6b1, 18.6b2, 18.6b2, 18.6b3, 18.6b3, 18.6b4, 18.6b4, 18.9b0, 18.9b0, 19.3b0, 19.3b0
[pipenv.exceptions.ResolutionFailure]: Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies.
  First try clearing your dependency cache with $ pipenv lock --clear, then try the original command again.
 Alternatively, you can use $ pipenv install --skip-lock to bypass this mechanism, then run $ pipenv graph to inspect the situation.
  Hint: try $ pipenv lock --pre if it is a pre-release dependency.
ERROR: ERROR: Could not find a version that matches black
Skipped pre-versions: 18.3a0, 18.3a0, 18.3a1, 18.3a1, 18.3a2, 18.3a2, 18.3a3, 18.3a3, 18.3a4, 18.3a4, 18.4a0, 18.4a0, 18.4a1, 18.4a1, 18.4a2, 18.4a2, 18.4a3, 18.4a3, 18.4a4, 18.4a4, 18.5b0, 18.5b0, 18.5b1, 18.5b1, 18.6b0, 18.6b0, 18.6b1, 18.6b1, 18.6b2, 18.6b2, 18.6b3, 18.6b3, 18.6b4, 18.6b4, 18.9b0, 18.9b0, 19.3b0, 19.3b0
There are incompatible versions in the resolved dependencies.
[pipenv.exceptions.ResolutionFailure]:       req_dir=requirements_dir
[pipenv.exceptions.ResolutionFailure]:   File "/Users/erin/.pyenv/versions/3.7.2/lib/python3.7/site-packages/pipenv/utils.py", line 746, in resolve_deps
[pipenv.exceptions.ResolutionFailure]:       req_dir=req_dir,
[pipenv.exceptions.ResolutionFailure]:   File "/Users/erin/.pyenv/versions/3.7.2/lib/python3.7/site-packages/pipenv/utils.py", line 500, in actually_resolve_deps
[pipenv.exceptions.ResolutionFailure]:       resolved_tree = resolver.resolve()
[pipenv.exceptions.ResolutionFailure]:   File "/Users/erin/.pyenv/versions/3.7.2/lib/python3.7/site-packages/pipenv/utils.py", line 415, in resolve
[pipenv.exceptions.ResolutionFailure]:       raise ResolutionFailure(message=str(e))
[pipenv.exceptions.ResolutionFailure]:       pipenv.exceptions.ResolutionFailure: ERROR: ERROR: Could not find a version that matches black
[pipenv.exceptions.ResolutionFailure]:       Skipped pre-versions: 18.3a0, 18.3a0, 18.3a1, 18.3a1, 18.3a2, 18.3a2, 18.3a3, 18.3a3, 18.3a4, 18.3a4, 18.4a0, 18.4a0, 18.4a1, 18.4a1, 18.4a2, 18.4a2, 18.4a3, 18.4a3, 18.4a4, 18.4a4, 18.5b0, 18.5b0, 18.5b1, 18.5b1, 18.6b0, 18.6b0, 18.6b1, 18.6b1, 18.6b2, 18.6b2, 18.6b3, 18.6b3, 18.6b4, 18.6b4, 18.9b0, 18.9b0, 19.3b0, 19.3b0
[pipenv.exceptions.ResolutionFailure]: Warning: Your dependencies could not be resolved. You likely have a mismatch in your sub-dependencies.
  First try clearing your dependency cache with $ pipenv lock --clear, then try the original command again.
 Alternatively, you can use $ pipenv install --skip-lock to bypass this mechanism, then run $ pipenv graph to inspect the situation.
  Hint: try $ pipenv lock --pre if it is a pre-release dependency.
ERROR: ERROR: Could not find a version that matches black
Skipped pre-versions: 18.3a0, 18.3a0, 18.3a1, 18.3a1, 18.3a2, 18.3a2, 18.3a3, 18.3a3, 18.3a4, 18.3a4, 18.4a0, 18.4a0, 18.4a1, 18.4a1, 18.4a2, 18.4a2, 18.4a3, 18.4a3, 18.4a4, 18.4a4, 18.5b0, 18.5b0, 18.5b1, 18.5b1, 18.6b0, 18.6b0, 18.6b1, 18.6b1, 18.6b2, 18.6b2, 18.6b3, 18.6b3, 18.6b4, 18.6b4, 18.9b0, 18.9b0, 19.3b0, 19.3b0
There are incompatible versions in the resolved dependencies.

Proposed solution:

  1. Add the --pre flag to the pipenv command when black is chosen and installed.

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