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.

…

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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

[FangliangBai]

Me upgrading 3.7.2 to 2.7.6 solved the problem.

[corbinday]

I was getting this warning:
/Users/usr/.pyenv/versions/3.9.5/lib/python3.9/site-packages/pandas/compat/__init__.py:97: UserWarning: Could not import the lzma module. Your installed Python is incomplete. Attempting to use lzma compression will result in a RuntimeError.

I was finally able to get rid of it with this command:
CPPFLAGS="-I$(brew --prefix xz)/include" pyenv install [your version]

Just thought I'd drop this here for anyone with my same problem.

See also:

• https://www.gitmemory.com/issue/pyenv/pyenv/1800/772177116
• https://stackoverflow.com/a/67591858/10598950

OS: Big Sur
M1 chip
pyenv
python 3.9.5

[officiallygeorge]

@corbinday's solution worked for me.

OS: Monterey
M1 chip
pyenv
python 3.9.7

[dulimpul]

thank @corbinday its work in python 3.9.6

[harrywang]

@corbinday 's solution works: CPPFLAGS="-I$(brew --prefix xz)/include" pyenv install 3.10.0

OS: Monterey
M1 chip
pyenv
python 3.10.0

[simkimsia]

i tried @corbinday solution.. didn't work for me.

OS: Monterey
M1 chip
pyenv (installed via homebrew)
python 3.10.0

Then i create a venv using that and then when i run pandas

/Users/kimsia/.venv/data-engineer-py3100/lib/python3.10/site-packages/pandas/compat/__init__.py:124: UserWarning: Could not import the lzma module. Your installed Python is incomplete. Attempting to use lzma compression will result in a RuntimeError.
  warnings.warn(msg)

related: pyenv/pyenv#1800 (comment)

UPDATE 2022-01-13 18:11 (SOLVED)

The issue is sovled when i

brew upgrade pyenv

from 2.2.2 to 2.2.3

and then repeat the same thing because now 3.10.1 is now available

CFLAGS="-I$(brew --prefix xz)/include" LDFLAGS="-L$(brew --prefix xz)/lib" pyenv install 3.10.1

then icreate my own venv

/Users/kimsia/.pyenv/versions/3.10.1/bin/python3.10 -m venv ~/.venv/data-engineer-py3101       

activate the venv then reinstall the pandas and then proceed with my use case and now the lzma warning is gone