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Backport PR #23712 on branch v3.6.x (FIX: do not try to help CPython with garbage collection) #23739

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Merged
tacaswell merged 1 commit into from
Aug 25, 2022
Merged

Backport PR #23712 on branch v3.6.x (FIX: do not try to help CPython with garbage collection) #23739

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9 changes: 0 additions & 9 deletions lib/matplotlib/_pylab_helpers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,6 @@

import atexit
from collections import OrderedDict
import gc


class Gcf:
Expand Down Expand Up @@ -66,10 +65,6 @@ def destroy(cls, num):
manager.canvas.mpl_disconnect(manager._cidgcf)
manager.destroy()
del manager, num
# Full cyclic garbage collection may be too expensive to do on every
# figure destruction, so we collect only the youngest two generations.
# see: https://github.com/matplotlib/matplotlib/pull/3045
gc.collect(1)

@classmethod
def destroy_fig(cls, fig):
Expand All @@ -82,14 +77,10 @@ def destroy_fig(cls, fig):
@classmethod
def destroy_all(cls):
"""Destroy all figures."""
# Reimport gc in case the module globals have already been removed
# during interpreter shutdown.
import gc
for manager in list(cls.figs.values()):
manager.canvas.mpl_disconnect(manager._cidgcf)
manager.destroy()
cls.figs.clear()
gc.collect(1)

@classmethod
def has_fignum(cls, num):
Expand Down