在Linux Mint 18 Mate x64上安裝了Librosa(https://github.com/librosa/librosa)之後,出現了很多問題。當我要運行示例腳本,例如:http://librosa.github.io/librosa/generated/librosa.feature.tempogram.html#librosa.feature.tempogram,它以「分段故障」錯誤崩潰:matplotlib運行示例Librosa腳本中的「分段錯誤」
$ python librosa-feature-tempogram-1.py
/usr/local/lib/python2.7/dist-packages/matplotlib/backends/backend_qt5.py:140: Warning: g_main_context_push_thread_default: assertion 'acquired_context' failed
qApp = QtWidgets.QApplication([str(" ")])
Segmentation fault
我試着逐條線調試和有結果:
$ python
Python 2.7.12 (default, Jul 1 2016, 15:12:24)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import librosa
>>> # Visualize an STFT power spectrum
...
>>> import matplotlib.pyplot as plt
>>> y, sr = librosa.load(librosa.util.example_audio_file())
>>> plt.figure(figsize=(12, 8))
/usr/local/lib/python2.7/dist-packages/matplotlib/backends/backend_qt5.py:140: Warning: g_main_context_push_thread_default: assertion 'acquired_context' failed
qApp = QtWidgets.QApplication([str(" ")])
Segmentation fault
可能存在一些matplotlib庫和Qt(5.7.0)的問題。此外,我記得我在安裝Librosa時遇到了很多問題,包括matplotlib,所以它可能是一些安裝問題。但是,我不知道如何解決它。我希望有人能爲我提供有用的線索。 sudo apt-get install tk-dev libpng-dev libffi-dev dvipng texlive-latex-base
和使用PIP重新安裝matplotlib: