Python 2.7 异常处理

Question

我使用的是 python 2.7，我构建了一个自定义异常类，当我捕获此异常时，程序不会停止。

这是我的代码片段:

try:
    result = OsUtils.is_os_name_valid(allowedSystems)
    print "This is the result: {0}".format(result)
    if result is False:
        raise ErrorUnsupportedOsSystemException(OsUtils.get_os_type())
except ErrorUnsupportedOsSystemException as e:
    print "({0}) {1}, ".format(e.os_type, e.message)
except IOError as e:
    print "I/O error ({0}) : {1}".format(e.errno, e.strerror)
except:
    print "Unexpected error:", sys.exc_info()[0]
    raise
print "Test"

这是异常类:

class ErrorUnsupportedOsSystemException(Exception):
    message = "Error: unsupported system!!"

    def __init__(self, os_type):
        self.os_type = os_type

    pass

这是我得到的输出:

This is the result: False
(posix) Error: unsupported system!!, 
Test

不应打印“测试”。

Answer 1

尝试这样的事情。让它与您的代码一起工作。

import sys

try:
    things...
except ErrorThatJustShouldBeLogged as e:
    log an error or something
except ErrorThatShouldExitProgram as e:
    sys.exit(0)