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[Bug]: macOS backend leaks objects in wake_on_fd_write #31755
Description
Bug summary
Assuming that #31751 is fixed, the macOS backend will still leak an NSFileHandle and opaque NSObject created in wake_on_fd_write.
Code for reproduction
import matplotlib.pyplot as plt
plt.subplots()
plt.show()Actual outcome
A call to wake_on_fd_write() creates an NSFileHandle and an _NSObserver, but these are never freed after the observation block executes.
Expected outcome
After the NSFileHandleDataAvailableNotification executes the specified block, both objects should be freed.
Additional information
No response
Operating system
macOS 14.7
Matplotlib Version
0.2.0.dev54528+unknown.gf4cf12592.d20260526
Matplotlib Backend
No response
Python version
No response
Jupyter version
No response
Installation
None
Activity