Unable to install via PIP (unsafe to install)

[jaraco]

Unable to install via PIP (unsafe to install)

[jaraco]

I've encountered this issue before. This issue is triggered when Python and lib2to3 tries to expand a pickle in the system directory.

I'm surprised the install of irc is triggering this error because irc doesn't use 2to3.

I worked around this in my environments by first importing lib2to3.grammar (I think) before running any installs. Please try that and let me know if that helps.

Later, I'll have my main workstation and can confirm and investigate further.

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Original comment by: Jason R. Coombs

[jaraco]

Ran the following, I assume this is what you meant?

Apologies if not, still new to Python :)

C:\Users\Tom>pip install lib2to3.grammar

Downloading/unpacking lib2to3.grammar

Could not find any downloads that satisfy the requirement lib2to3.grammar

Cleaning up...

No distributions at all found for lib2to3.grammar

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Original comment by: Nuvelle

[jaraco]

I apologize. I didn't give very good advice, as I was working from memory.

What I meant was to run

python -c "import lib2to3.pygram"

That will trigger the Python environment to generate the lib2to3 grammar, which it stores as a pickle. If that code gets triggered first as part of installing a package, it will cause that sandbox violation (because writing outside of the sandboxed directory is disallowed).

My guess is if you run the command above, the install will work. It's possible you don't even need to run the command above and that it'll work. I'm not sure why installing httpie works but installing irc doesn't. It could be because irc uses 'setup_requires' requirements.

In any case, it's not a bug with irc. Please let me know if the above command doesn't get things going.

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Original comment by: Jason R. Coombs

[jaraco]

I filed setuptools 121 to track the underlying error.

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Original comment by: Jason R. Coombs

[jaraco]

Worked perfectly after running the command!

Thank you!!

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Original comment by: Nuvelle