Traceback (most recent call last): File "E:\workspace\pyf\wx\matplotlib_patches.py", line 183, in <module> window = MainWindow() File "E:\workspace\pyf\wx\matplotlib_patches.py", line 165, in __init__ self.show_page(0) File "E:\workspace\pyf\wx\matplotlib_patches.py", line 169, in show_page page = self.doc.load_Page(page_num) AttributeError: 'Document' object has no attribute 'load_Page'

根据错误信息，我们可以看到`AttributeError: 'Document' object has no attribute 'load_Page'`，也就是说，pymupdf库中的Document对象没有load_Page()函数，更正一下即可。

将：

page = self.doc.load_Page(page_num)

改为：

page = self.doc.load_page(page_num)

这样就可以避免这个错误了。