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I'm using vimspector for debugging python, with debugpy. However, I need to source some environment variables before debugging in order for everything to work. How can I set up these env variables before debugging?

In VS code, I used to start the debug. The debug would break, but I could go into the debug terminal, source the env vars, and then it would work.

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  • Of course I read the documentation before resorting to asking it here. I couldn't find which field, on the json config file, I should use to setup the env variables. I tried some configs, but neither of them worked. Commented Mar 23, 2021 at 20:38
  • I did forget my customary welcome, so let me say: Welcome to Vi and Vim! I added the doc links for you and for others; if you've seen them and tried to use them, perhaps you could edit your question to include something like "Based on link and link, I tried XYZ but it didn't work"? I tend to find that plugin questions are better answered by the plugin community, though.
    – D. Ben Knoble
    Commented Mar 23, 2021 at 21:12

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I followed the instructions given by puremourning at https://www.reddit.com/r/vim/comments/mbdt2e/environment_variables_on_vimspector/

I used a shell variable to run a script whose output is the JSON required for the env key; and type coercion to coerce this JSON string into the env map

It is illustrated in puremourning's example:

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  • I tried both keys env and env#json in the debug configuration for forwarding environment variables to binary executable, unfortunately neither of them works, my program still failed to retrieve env variables. What is your vimspector version ?
    – Ham
    Commented Jul 24, 2023 at 5:14

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