pyplot.ion() ⚬ Entries

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pyplot.ion() ⚬｜Documentation｜1st｜20260605005430-00-⌔

matplotlib.pyplot.ion — Matplotlib 3.10.9 documentation#matplotlib.pyplot.ion

matplotlib.pyplot.ion()

Enable interactive mode.

See pyplot.isinteractive for more details.

See also:

ioff

Disable interactive mode.

isinteractive

Whether interactive mode is enabled.

show

Show all figures (and maybe block).

pause

Show all figures, and block for a time.

Notes:

For a temporary change, this can be used as a context manager:

# if interactive mode is off
# then figures will not be shown on creation
plt.ioff()
# This figure will not be shown immediately
fig = plt.figure()
 
with plt.ion():
   # interactive mode will be on
   # figures will automatically be shown
   fig2 = plt.figure()
   # ...

To enable optional usage as a context manager, this function returns a context manager object, which is not intended to be stored or accessed by the user.

Printed 2026-06-28.

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