AttributeError: module 'matplotlib' has no attribute 'pyplot'
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Assessment
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Newbie friendliness
- 35/100
- Issue type
- Bug
- Clarity
- Mostly clear
- Activity status
- Stale
- Tech stack
- jupyter, matplotlib, python
- Domain
- backend, data-visualization
Research direction
Start at matplotlib_inline/backend_inline.py line 100, where matplotlib.pyplot.close('all') raises the reported AttributeError. Reproduce the failure with the shown notebook usage and compare it with explicitly importing matplotlib.pyplot; done means inline cleanup no longer fails when the backend is used as described.
Written by the indexing model from the issue text.
Description
While attempting to create a piano roll with librosa and matplotlib, like this:
def plot_piano_roll(pm, start_pitch, end_pitch, fs=100):
# Use librosa's specshow function for displaying the piano roll
librosa.display.specshow(pm.get_piano_roll(fs)[start_pitch:end_pitch],
hop_length=1, sr=fs, x_axis='time', y_axis='cqt_note',
fmin=pretty_midi.note_number_to_hz(start_pitch))
plt.figure(figsize=(8, 4))
plot_piano_roll(pm, 56, 70)
I encounter this error:
AttributeError Traceback (most recent call last)
File ~/anaconda3/lib/python3.9/site-packages/matplotlib_inline/backend_inline.py:100, in show(close, block)
97 # only call close('all') if any to close
98 # close triggers gc.collect, which can be slow
99 if close and Gcf.get_all_fig_managers():
--> 100 matplotlib.pyplot.close('all')
File ~/anaconda3/lib/python3.9/site-packages/matplotlib/_api/__init__.py:226, in caching_module_getattr.<locals>.__getattr__(name)
224 if name in props:
225 return props[name].__get__(instance)
--> 226 raise AttributeError(
227 f"module {cls.__module__!r} has no attribute {name!r}")
AttributeError: module 'matplotlib' has no attribute 'pyplot'
The error seems to be fixed if I explicitly declare import matplotlib.pyplot as plt at the start of the file and then use that to call it like this: plt.close('all'). If that alone is satisfactory, I would request to do a PR.
- Dominant language
- Jupyter Notebook
- Stars
- 31
- Forks
- 39
- PR merge metrics
- No merged PRs in 30d
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