Pandas: Problem with lzma module

[Anatras]

/usr/local/lib/python3.7/site-packages/pandas/compat/__init__.py:84: UserWarning: Could not import the lzma module. Your installed Python is incomplete. Attempting to use lzma compression will result in a RuntimeError.

I get this error when I run the code and I don't know how to fix it

[Anatras]

I already checked the other related issue but they didn't help me, I have debian 9 installed on my server with python 3.7

[TomAugspurger]

That's just a warning, not an error.

You'll need to reinstall Python. If you're building from source you need to make sure that the proper headers are in place.

[Anatras]

which headers do I need?

[Anatras]

I've installed python again but same error

[TomAugspurger]

I'm not sure. I suspect the Python docs have some information.

On Thu, Aug 29, 2019 at 9:53 AM Anatras [e-mail] wrote:

I've installed python again but same error

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[robsonfs]

I had this problem recently ... but here, upgrading from Python 3.7.3 to Python 3.7.4 solved the problem!

[TomAugspurger]

@Anatras another user mentioned the xz library.

Closing, since this is an issue with the Python install, not pandas.

[davidweisscode]

When you're getting above warning and building Python from source, make sure to

• Include required packages. Here, install the lzma module sudo apt-get install liblzma-dev
• Rebuild from source directory configure && make and sudo make install

These steps removed the warning for my Python 3.7.3.
See also this Stack Overflow question