CODEWITHSUNDEEP
python-3.xubuntuatom-editor
memo
memo

Reputation: 177

python2 and python3 on Ubuntu

I recently installed Ubuntu 18.04.4 which came with Python 3.7.6 installed. I installed Atom v1.45, which comes with Python 2.7 automatically.

When running a Python script from the terminal, it raises ModuleNotFoundError. I figured that if I ran the script from the terminal with python3.7 file.py instead of python file.py there is no problem, though it is slightly annoying to do that all the time.

I uninstalled python2.7 but then I could not use Atom.

How can solve this problem?

Upvotes: 0

Views: 71

Answers (1)

Hariharan Ragothaman
Hariharan Ragothaman

Reputation: 582

I faced a very similar problem. Some of the tips from my end are:

  1. I recommend using a virtual environment when running scripts from the command-line. This helps resolve all module dependencies for the script in general and especially when dealing with multiple Python versions.

    $ virtualenv -p /usr/bin/python3 ./venv    
$ source ./venv/bin/activate    
$ ./venv/bin/python foo.py

    Typically, the above steps, are either in my Makefile or in a helper script.

  2. When running a script from the terminal, if you want to type python instead of python3.7, you can create a symlink for python to point to python3 in the /usr/bin directory.

Also, I recommend switching to python3 completely since support for python2.7 has officially stopped.

Upvotes: 4

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