bCNC 冻结口袋动作 #1349

阿尔弗雷多库比托斯

你好，

单击 Pocket 按钮两次后，bCNC 因以下错误而冻结：

self.canvas.winfo_id(): 100663381
Traceback (most recent call last):
  File "/usr/lib/python3.7/site-packages/bCNC/Utils.py", line 464, in __call__
    return self.func(*args)
  File "/usr/lib/python3.7/site-packages/bCNC/ToolsPage.py", line 1747, in execute
    self.tools.getActive().execute(self.app)
  File "/usr/lib/python3.7/site-packages/bCNC/ToolsPage.py", line 909, in execute
    app.pocket(name)
  File "/usr/lib/python3.7/site-packages/bCNC/__main__.py", line 1827, in pocket
    msg = self.gcode.pocket(blocks, diameter, stepover, name)
  File "/usr/lib/python3.7/site-packages/bCNC/CNC.py", line 4011, in pocket
    newpath.extend(self._pocket(path, -D*diameter, stepover, 0))
TypeError: 'NoneType' object is not iterable

重现步骤：