How to solve import error for pandas?

Question

I installed Anaconda with python 2.7.7.
However, whenever I run \"import pandas\" I get the error:
\"ImportError: C extension: y not built. If you want to impo

Answer 1

Pandas has portions of its code written in C to make it run faster. If you tried to install pandas manually you would need to build it. Try reinstalling it with miniconda package manager here: http://conda.pydata.org/miniconda.html

and then you can just do

conda install pandas

There are very simple instructions on how to do it in the link below. Just do ctrl-f miniconda to find the section that talks about it

http://pandas.pydata.org/pandas-docs/dev/install.html

Answer 2

I was unable to upgrade pandas with regular

pip install --upgrade pandas 

"tensorflow 1.6.0 has requirement numpy>=1.13.3, but you'll have numpy 1.13.1 which is incompatible."

However bumping it with:

pip install --upgrade pandas --force

solved issue completely

Answer 3

try

/miniconda3/bin/conda install python

python: 3.6.0-0 --> 3.6.1-2

and

/miniconda3/bin/conda install pandas

Try the same with your Anaconda version.

Answer 4

I had this issue when I needed up upgrade from Python 32 bit to 64 bit to use tensorflow.

Running this command uninstalled pandas 0.21 and reinstalled 0.22 :

pip install --upgrade pandas

Sorted.

Answer 5

I had the same problem and the issue came from an encoding problem. My os was previously set up in French and everything was fine. But then when I switched to English I had the error above.

You can type

locale

in the terminal to check the local environment variables.

When set up in French, I had this configuration: French config. Then, after I switched to English, I had: English config.

I then added the following lines in the .bash_profile under /Users/myName and everything went back to normal.

export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8

Answer 6

I just had exactly the same issue when running tox.

Steps to solve:

1. Update setup.py to contain pandas==0.23.0 (instead of 0.21.0).
2. Remove .tox directory
3. Run tox again.