Question

我正在使用覆盆子PI 1上的python编程。当我尝试使用plt.savefig保存绘图时，我收到此错误，即使绘图的内容是单个值。我有一个Tkinter在一个主要的prosess上运行，我有一个单独的线程通过调用另一个.py文件中的函数进行一些计算，plt.savefig就是这些函数之一。 plt.savefig在直接调用第二个.py文件时工作正常，所以我猜这与我的线程有关？我的知识有点受限，我真的很感激一些帮助:(

编辑：

import threading
import time
import matplotlib.pyplot as plt
def saveplot():
    plt.plot(3)
    plt.savefig("plot.jpg")
    time.sleep(10)

threads = []
t = threading.Thread(target=saveplot)
threads.append(t)
t.start()

Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/threading.py", line 763, in run
    self.__target(*self.__args, **self.__kwargs)
  File "Slett.py", line 6, in saveplot
    plt.savefig("plot.jpg")
  File "/usr/lib/python2.7/dist-packages/matplotlib/pyplot.py", line 578, in savefig
    draw()   # need this if 'transparent=True' to reset colors
  File "/usr/lib/python2.7/dist-packages/matplotlib/pyplot.py", line 571, in draw
    get_current_fig_manager().canvas.draw()
  File "/usr/lib/python2.7/dist-packages/matplotlib/backends/backend_tkagg.py", line 350, in draw
    tkagg.blit(self._tkphoto, self.renderer._renderer, colormode=2)
  File "/usr/lib/python2.7/dist-packages/matplotlib/backends/tkagg.py", line 21, in blit
    _tkagg.tkinit(tk.interpaddr(), 1)
OverflowError: Python int too large to convert to C long

Answer 1

请查看帖子：https://github.com/matplotlib/matplotlib/issues/7680这是matplotlib中的错误https://github.com/matplotlib/matplotlib/pull/7634

Python：OverflowError：当将绘图保存为图像时，Python int太大而无法转换为C long

1 个答案: