Python：Windows 中的双键盘中断？

Question

我正在 Python 3.1.2 中运行基于控制台的应用程序。我希望应用程序在提示符下捕获 Ctrl-C 并根据上下文进行处理。我按预期收到了 KeyboardInterrupt，但出乎意料的是，当我去写警告消息时，有时我会再次看到它。追溯如下。各位聪明人有什么想法吗？

---

Traceback (most recent call last):
  File "E:\Dropbox\git\vocabulary\v.py", line 58, in main
    command, args = c.getcommand()
  File "E:\Dropbox\git\vocabulary\console.py", line 81, in getcommand
    command, *args = input(prompt).split()
KeyboardInterrupt

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "E:\Dropbox\git\vocabulary\v.py", line 125, in 
    main()
  File "E:\Dropbox\git\vocabulary\v.py", line 71, in main
    print("\nUse 'quit' to exit the application.")
  File "E:\Dropbox\git\vocabulary\utilities.py", line 191, in write
    self.stream.write(data)
KeyboardInterrupt

Answer 1

我无法重现这个。

def foo():
    try:
        x = 0
        while True:
            x += 1        
    except KeyboardInterrupt:
        print(x)
while True:
    foo()

工作正常并按预期捕获 CTRL-C。