gwpy 包给出错误 - AttributeError：模块“matplotlib.pyplot”在 Google Colab 中没有属性“FigureManagerBase”

Question

在 Google Colab gwpy 包中出现错误 -

AttributeError：模块“matplotlib.pyplot”没有属性“FigureManagerBase”

（但是，同样的代码在本地机器上运行良好）。

我已经尝试完全卸载，然后使用以下命令重新安装 gwpy，并重新启动（重置）Colab 的机器。但错误仍然存​​在。

!pip install --upgrade --force-reinstall --no-deps gwpy

# And also the below ones
!pip install gwosc
!pip install dqsegdb2
!pip install ligotimegps

我的代码，使用gwpy 包如下

import pandas as pd
import seaborn as sns
from scipy import signal

from gwpy.timeseries import TimeSeries
from gwpy.plot import Plot
import matplotlib.pyplot as plt
plt.style.use('ggplot')


def get_tseries_from_file(file_name):
  t_data = np.load(file_name)
  tseries1 = TimeSeries(t_data[0,:], sample_rate=2048)
  tseries2 = TimeSeries(t_data[1,:], sample_rate=2048)
  tseries3 = TimeSeries(t_data[2,:], sample_rate=2048)
  return tseries1, tseries2, tseries3

def plot_tseries(t1, t2, t3):
  plot = Plot(t1, t2, t3, separate=True, sharex=True, figsize=[20, 12])
  ax = plot.gca()
  ax.set_xlim(0, 2)
  ax.set_xlabel('Time [s]')
  plt.show()
  
file_1 = root_dir + 'train/0/0/0/000a5b6e5c.npy'
  
tseries1, tseries2, tseries3 = get_tseries_from_file(file_1)

# Plotting the 3 TimeSeries
plot_tseries(tseries1, tseries2, tseries3)

并收到来自../gwpy/plot/plot.py 的以下错误

“模块‘matplotlib.pyplot’没有属性‘FigureManagerBase’”

raceback (most recent call last)
/usr/local/lib/python3.7/dist-packages/gwpy/plot/plot.py in _init_figure(self, **kwargs)
    131         try:
--> 132             manager = backend_mod.new_figure_manager_given_figure(num, self)
    133         except AttributeError:

AttributeError: module 'ipykernel.pylab.backend_inline' has no attribute 'new_figure_manager_given_figure'

During handling of the above exception, another exception occurred:

AttributeError                            Traceback (most recent call last)
3 frames
/usr/local/lib/python3.7/dist-packages/gwpy/plot/plot.py in _init_figure(self, **kwargs)
    135                 pyplot.new_figure_manager.__module__)
    136             canvas = upstream_mod.FigureCanvasBase(self)
--> 137             manager = upstream_mod.FigureManagerBase(canvas, 1)
    138         manager._cidgcf = manager.canvas.mpl_connect(
    139             'button_press_event',

AttributeError: module 'matplotlib.pyplot' has no attribute 'FigureManagerBase'

附加信息

print(matplotlib.get_backend()) # module://ipykernel.pylab.backend_inline
print(matplotlib.__version__) # 3.4.3
print(gwpy.__version__) # 2.0.4

Answer 1

问题根源

在 matplotlib 3.2.2 中

import matplotlib.pyplot as plt
pyplot.new_figure_manager.__module__

收益：matplotlib.backend_bases

在 matplotlib 3.4.3 中，它产生：matplotlib.pyplot

这很糟糕：

临时解决方法

正如Tracking issue of gwpy 中所建议的那样——

目前在 Colab 中的临时解决方法是使用早期版本的 matplotlib-

!pip install matplotlib==3.2.2

3.2.2 可以正常工作。