PR: Increase default max console buffer and warn if it's big (IPython console) #25028
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ccordoba12
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Co-authored-by: Carlos Cordoba <[email protected]>
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Description of Changes
Followup to #25010
Related to #19091
The current default value of the Console buffer size (scrollback length) under
Preferences > IPython Console > Interfaceis very low at only 500 lines, barely a handful of screenfulls of text. Given in 2025 machines can easily handle, and many users expect, far more, and the default setting results in permanent data loss, it seems reasonable to increase it to at least 5000.Meanwhile, the maximum value was apparently set to only 5000 due to #19091, where a user reported that Spyder was very slugging when the Console buffer size (scrollback length) was set to 50k lines. @ccordoba12 postulated that this could occur with a buffer size >10k lines, and although the maximum was set to half of that still.
However, the setting still allows (and even mentions in the tooltip) a value of
-1, which sets the buffer size to unlimited. Given a user desiring a buffer size larger than 5k would have no choice but to set that, which is strictly worse for Spyder's performance than any fixed buffer size, it seems only reasonable to allow a much larger maximum (or none at all); I've set it to 100k for now.Yet, we should warn users about this more visibility than just a mention in the tooltip. As such, I've implemented a callback on applying a change to this setting that pops up a warning dialog if either >10k lines is set for the buffer, or an unlimited buffer (
-1) is set.Additionally, I've cleaned up a handful of remaining formatting issues not caught in #25010
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: CAM-Gerlach