来自 matplotlib 的泡菜数字：2

Question

在之后，我正在尝试从 pickle 加载一个图形。我使用的是相同的代码，并进行了响应中建议的修改。保存脚本：

import numpy as np
import matplotlib.pyplot as plt
import pickle as pl

# Plot simple sinus function
fig_handle = plt.figure()
x = np.linspace(0,2*np.pi)
y = np.sin(x)
plt.plot(x,y)
# plt.show()

# Save figure handle to disk
pl.dump(fig_handle,file('sinus.pickle','wb'))

加载脚本：

import matplotlib.pyplot as plt
import pickle as pl
import numpy as np

# Load figure from disk and display
fig_handle = pl.load(open('sinus.pickle', 'rb'))
fig_handle.show()

保存脚本生成一个名为"sinus.pickle"的文件，但加载文件没有显示预期的图形。有什么建议吗？

Python 2.7.13 matplotlib 2.0.0 麻木 1.12.1

p.s。按照建议将 fig_handle.show() 替换为 pat.show() 会产生错误：回溯（最近调用最后）：

File "/usr/local/lib/python2.7/
   site-packages/matplotlib/backends/backend_macosx.py", line 109, 
   in_set_device_scale
   self.figure.dpi = self.figure.dpi / self._device_scale * value
   File "/usr/local/lib/python2.7/site-packages/matplotlib/figure.py", 
   line  416, in _set_dpi
   self.callbacks.process('dpi_changed', self)
   File "/usr/local/lib/python2.7/site-packages/matplotlib/cbook.py", 
   line  546, in process
   if s in self.callbacks:
   AttributeError: 'CallbackRegistry' object has no attribute 'callbacks'

Answer 1

你所谓的 "loading script" 没有任何意义。

根据您在问题中提供的 link，加载所选图形非常简单：

# Load figure from disk and display
fig_handle2 = pl.load(open('sinus.pickle','rb'))
fig_handle2.show()

Answer 2

最终解决方案包括修改 fig_handle.show() 到 plt.show() 根据 ImportanceOfBeingErnest

给出的建议，将后端修改为 "TkAgg"

来自 matplotlib 的泡菜数字：2

Pickle figures from matplotlib: 2

matplotlib

pickle

figure

python-2.7