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PR: Set max number of figures shown in Plots to prevent memory leak #25320

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PR: Set max number of figures shown in Plots to prevent memory leak #25320

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@jsbautista jsbautista commented Nov 10, 2025 •
edited by ccordoba12
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Description of Changes

  • Plots will display a max number of figures at any time.
  • When new figures are created, older ones will be removed and Python's garbage collector called after 30
    secs to clear the memory associated to them.
  • Allow users to change that number (from 10 10 100) with an entry in Plots options menu.

Visual changes

Option to change max number of plots

image

Issue(s) Resolved

Fixes #25249

Affirmation

By submitting this Pull Request or typing my (user)name below,
I affirm the Developer Certificate of Origin
with respect to all commits and content included in this PR,
and understand I am releasing the same under Spyder's MIT (Expat) license.

I certify the above statement is true and correct:
@jsbautista
@ccordoba12 ccordoba12 changed the title PR: Add plots limitations Nov 18, 2025
@ccordoba12 ccordoba12 added this to the v6.1.2 milestone Nov 18, 2025
@ccordoba12
Plots: Make max_plots attribute private in ThumbnailScrollBar
bef2245 
Also, decrease default for max plots and fix some small code issues.
@ccordoba12
Plots: Use functools.partial to show max plots input dialog
a6a41d8 
Also, use a for loop to simplify how to add actions to its Options menu
@ccordoba12
Plots: Don't disable set_max_plots_action when plots are not available
b0508ac
@ccordoba12 ccordoba12 changed the title PR: Limit number of figures shown in Plots to prevent memory leak Nov 20, 2025
@ccordoba12 ccordoba12 mentioned this pull request Nov 21, 2025
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component:Plots type:Bug User Experience (UX)

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@jsbautista @ccordoba12