python - 使用 ctrl c 退出程序

Question

我有一个运行多个单元测试的脚本，但是当我按下 control c 时，它只会退出特定的单元测试，而不是整个脚本。有什么办法可以做到这一点？这是我实际执行单元测试的代码。

    #bitshift right to obtain correct return value, execution of each test.
    returnValue = os.system(path) >> 8
    #running total of failures in the program.
    failures += returnValue

这就是我调用此函数并退出程序的方式。

failures = execTests(path, testList)
#exit program with returncode as number of failures
sys.exit(failures)

Answer 1

事实上，此功能已存在于 API 中。来自 Python 标准库，25.3. unittest — Unit testing framework这是相关的摘录:

-c, --catch

Control-C during the test run waits for the current test to end and then reports all the results so far. A second Control-C raises the normal KeyboardInterrupt exception.

See Signal Handling for the functions that provide this functionality.