Need help using PYTHONPATH

0 votes

How can I make any use of PYTHONPATH? When I try to run a script in the path the file is not found. When I cd to the directory holding the script the script runs. So what good is the PYTHONPATH?

$ echo $PYTHONPATH
:/home/randy/lib/python

$ tree -L 1 '/home/randy/lib/python' 
/home/randy/lib/python
├── gbmx_html.py
├── gbmx.py
├── __init__.py
├── __pycache__
├── scripts
└── yesno.py

$ python gbmx.py -h
python: can't open file 'gbmx.py': [Errno 2] No such file or directory

$ cd '/home/randy/lib/python'

After cd to the file directory it runs ..

$ python gbmx.py -h
usage: gbmx.py [-h] [-b]

Why can I not make any use of the PYTHONPATH?

Dec 11, 2018 in Python by charlie_brown
• 7,720 points
1,158 views

2 answers to this question.

+1 vote

You're confusing PATH and PYTHONPATH. You need to do this:

export PATH=$PATH:/home/randy/lib/python 

PYTHONPATH is used by the python interpreter to determine which modules to load.

PATH is used by the shell to determine which executables to run.

answered Dec 11, 2018 by aryya
• 7,460 points
+1 vote

PYTHONPATH only affects import statements, not the top-level Python interpreter's lookup of python files given as arguments. More on...Path settings in Python

answered Dec 17, 2018 by iangregor
• 300 points
Hey @iangregor! Can you please tell me if it is possible to change the PYTHONPATH? If yes, then how?

Try appending to PYTHONPATH instead of overwriting it completely.

export PYTHONPATH=$PYTHONPATH:/home/dev/python-files

Related Questions In Python

0 votes
1 answer
0 votes
1 answer

Need help using Joins in Pandas using Python

Hi, there is one scenario where the ...READ MORE

answered Jan 24, 2019 in Python by Nymeria
• 3,560 points
728 views
0 votes
1 answer

Need help writing a dataframe into a csv with the help of a loop

Using the following logic you can arrive ...READ MORE

answered Apr 17, 2018 in Python by anonymous
3,391 views
0 votes
1 answer

Need help with searching a binary search tree

Instead of multiplying the number of nodes ...READ MORE

answered Apr 17, 2018 in Python by anonymous
890 views
0 votes
2 answers
+1 vote
2 answers

how can i count the items in a list?

Syntax :            list. count(value) Code: colors = ['red', 'green', ...READ MORE

answered Jul 7, 2019 in Python by Neha
• 330 points

edited Jul 8, 2019 by Kalgi 4,457 views
0 votes
1 answer
0 votes
1 answer

Need help with Tkinter window formatting using Python

Tkininter comes with the columnspan argument to span the labels ...READ MORE

answered Sep 7, 2018 in Python by aryya
• 7,460 points
900 views
0 votes
1 answer

Python using basicConfig method to log to console and file

I can't reproduce it on Python 3.3. ...READ MORE

answered Aug 14, 2018 in Python by aryya
• 7,460 points
1,216 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP