Ubuntu add directory to Python path

旧城冷巷雨未停 提交于 2019-12-04 19:33:33

问题


I want to run third part tool written in python on my ubuntu machine (corgy tool).

However I don't know how to add additional modules to Python path.

cat doc/download.rst         
There is currently no setup.py, so you need to manually add
the download directory to your PYTHON_PATH environment variable.

How can I add directory to PYTHON_PATH?

I have tried:
export PYTHON_PATH=/home/user/directory:$PYTHON_PATH && source .bashrc
export PATH=/home/user/directory:$PATH && source .bashrc

python
import sys
sys.path.append("/home/user/directory/")

But when I try to run this tool I get:

Traceback (most recent call last):
File "examples/dotbracket_to_bulge_graph.py", line 4, in <module>
import corgy.graph.bulge_graph as cgb
ImportError: No module named corgy.graph.bulge_graph

回答1:


Create a .bash_profile in your home directory. Then, add the line

PYTHONPATH=$PYTHONPATH:new_dir
EXPORT $PYTHONPATH

Or even better:

if [ -d "new_dir" ] ; then
  PYTHONPATH="$PYTHONPATH:new_dir"
fi
EXPORT $PYTHONPATH

The .bash_profile properties are loaded every time you log in.

The source command is useful if you don't want to log in again.



来源:https://stackoverflow.com/questions/16913086/ubuntu-add-directory-to-python-path