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Do not raise exception for pipenv graph when virtualenv does not exist #3201

jxltom opened this Issue Nov 9, 2018 · 0 comments


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jxltom commented Nov 9, 2018

Issue description

When virutaulenv is not created for a project yet, pipenv graph will raise exception.

➜  pipenv graph
Traceback (most recent call last):
  File "/usr/local/bin/pipenv", line 11, in <module>
    load_entry_point('pipenv', 'console_scripts', 'pipenv')()
  File "/home/user/Documents/dev/pipenv/pipenv/vendor/click/", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/home/user/Documents/dev/pipenv/pipenv/vendor/click/", line 717, in main
    rv = self.invoke(ctx)
  File "/home/user/Documents/dev/pipenv/pipenv/vendor/click/", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/user/Documents/dev/pipenv/pipenv/vendor/click/", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/user/Documents/dev/pipenv/pipenv/vendor/click/", line 555, in invoke
    return callback(*args, **kwargs)
  File "/home/user/Documents/dev/pipenv/pipenv/cli/", line 538, in graph
    do_graph(bare=bare, json=json, json_tree=json_tree, reverse=reverse)
  File "/home/user/Documents/dev/pipenv/pipenv/", line 2430, in do_graph
    python_path = which("python")
  File "/home/user/Documents/dev/pipenv/pipenv/", line 110, in which
    raise RuntimeError("location not created nor specified")
RuntimeError: location not created nor specified

It happens at least for v2018.10.13.

Expected result

It should be a friendly info.

➜  pipenv graph
Warning: No virtualenv has been created for this project yet! Consider running `pipenv install` first to automatically generate one for you or see`pipenv install --help` for further instructions.

Please run $ pipenv --support, and paste the results here. Don't put backticks (`) around it! The output already contains Markdown formatting.

If you're on macOS, run the following:

$ pipenv --support | pbcopy

If you're on Windows, run the following:

> pipenv --support | clip

If you're on Linux, run the following:

$ pipenv --support | xclip
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