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Description
Bug report
Bug summary
Adding subplots repeatedly to a figure in interactive mode can sometimes crash Matplotlib version 2.2.2, in version 2.0.2 everything works. Sometimes it does not crash, but when you resize figure's window to make it significantly smaller it crashes every time. I'm using Matplotlib on Kubuntu 16.04 64 bit with Python 3.5.2.
Code for reproduction
importmatplotlib.pyplotaspltimporttimeplt.ion()deftest_subplot_crash_with_matplotlib222():plt.ion()importmatplotlibprint("Matplotlib ver",matplotlib.__version__)fig=plt.figure()fig.set_size_inches(10,10)foriinrange(100):ax=fig.add_subplot(10,10,i+1)ax.plot([0,1], [0,1])fig.tight_layout()fig.canvas.flush_events()print(i)time.sleep(0.01)ifi==25:fig.set_size_inches(3,3)plt.ioff()plt.show()if__name__=='__main__':test_subplot_crash_with_matplotlib222()
Actual outcome
While adding 25th subplot it crashes. You can crash it earlier if you manually resize the window to make it smaller.
Traceback (most recent call last): File "tests/test_crash_matplotlib222.py", line 28, in <module> test_subplot_crash_with_matplotlib222() File "tests/test_crash_matplotlib222.py", line 18, in test_subplot_crash_with_matplotlib222 ax = fig.add_subplot(10, 10, i+1) File "/home/marian/.local/lib/python3.5/site-packages/matplotlib/figure.py", line 1239, in add_subplot a = subplot_class_factory(projection_class)(self, *args, **kwargs) File "/home/marian/.local/lib/python3.5/site-packages/matplotlib/axes/_subplots.py", line 77, in __init__ self._axes_class.__init__(self, fig, self.figbox, **kwargs) File "/home/marian/.local/lib/python3.5/site-packages/matplotlib/axes/_base.py", line 488, in __init__ raise ValueError('Width and height specified must be non-negative')ValueError: Width and height specified must be non-negativeExpected outcome
Interactive matplotlib window with dynamically added 100 plots. While plots are being added window should be resizable. After 25'th plot it will make itself smaller in an effort to reproduce the bug. In Matplotlib version 2.0.2 it works without crashing.
Matplotlib version
- Operating system: Kubuntu 16.04 64 bit, Linux 4.13.0-38-genericFix git instructions on matplotlib.sf.net #43~16.04.1-Ubuntu SMP Wed Mar 14 17:48:43 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
- Matplotlib version: 2.2.2
- Matplotlib backend (
print(matplotlib.get_backend())): TkAgg - Python version: 3.5.2
Installed matplotlib using:pip3 install --user matplotlib==2.2.2