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No display name and no $DISPLAY environment variable.

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
25/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
docker, matplotlib, node.js, python

Research direction

Start by reproducing the image-save operation in the Docker container and inspect how matplotnode initializes matplotlib through the CPython API. Confirm the headless save path works without a DISPLAY variable and that the TclError no longer appears.

Written by the indexing model from the issue text.

Description

Hello,
I am trying to use matplotnode on a docker container but I am getting this exception when a try to save the image. I don't need to show the graphic, only save the image.

Exception _tkinter.TclError: 'no display name and no $DISPLAY environment variable' in <module 'threading' from '/usr/lib/python2.7/threading.pyc'> ignored
Dominant language
C++
Stars
41
Forks
2
PR merge metrics
No merged PRs in 30d

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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