Simple Sublime Text 3 python27 build system - add project folder to path

Question

I am trying to set up a very simply python 2 build system in sublime text 3.

The default build environment for python works, but I want to be able to import top level modules of the project by adding the project folder to PYTHONPATH.

Here is my attempt at a build system:

{
  "cmd": ["python", "-u", "$file"],
  "env": 
  {
      "PYTHONPATH": "$project_path"
  },
    "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)",
    "selector": "source.python"
}

The terminal pops up with:

Traceback (most recent call last):
  File "C:\project", line 4, in <module>
    from lib.util.utilities import pairwise
ImportError: No module named lib.util.utilities
[Finished in 0.3s]

It's not seeing the $project_path folder, otherwise it would be able to import utilities, as lib/ is a folder in the top level project folder. How can I fix this?

I am on x64 Windows 8.1

Yes, it is the one that is selected under Tools->Build System->my_python2_build. — user27886
– user27886, Commented Jul 2, 2015 at 17:40

ThinkChaos · Accepted Answer · 2015-07-02 20:04:58Z

1

According to my tests, and to a post on Sublime Text's forums, variables are not expanded in env.

I found this by running the following Python code with your build system:

import os

print(os.environ['PYTHONPATH'])

Which outputs: $project_path.

Using the following build system will work, though you have the overhead of spawning a shell whenever you run your code:

{
    "shell_cmd": "export PYTHONPATH=\"$project_path\"; python -u \"$file\"",
    "windows":
    {
        "shell_cmd": "set \"PYTHONPATH=$project_path\" & python -u \"$file\"",
    },
    "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)",
    "selector": "source.python"
}

This works for me on both OS X and Windows with the following setup:

te st
├── lib
│   ├── __init__.py
│   └── util.py
├── src
│   └── te st.py
└── test.sublime-project

edited Jul 2, 2015 at 20:04

answered Jul 2, 2015 at 18:01

ThinkChaos

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4 Comments

user27886 Over a year ago

I get that

'export' is not recognized as an internal or external command, operable program or batch file. [Finished in 0.0s with exit code 1]

is this a default windows shell command?

ThinkChaos Over a year ago

Right, Windows forgot about that; sorry!

ThinkChaos Over a year ago

@user27886 I fixed it to work with spaces on Windows too.

ThinkChaos Over a year ago

That's what happens with set "PYTHONPATH=$project_path". I added a working project structure for you to compare with yours.

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