从消息模板创建异常类。
exception-template的Python项目详细描述
在避免锅炉板的情况下，使用一致的消息引发异常。
比较这个：
>>> from exception_template import ExceptionTemplate
>>> class MyException(ExceptionTemplate):
... message = 'Hello, {person}. Here is my {adjective} exception class.'
>>> raise MyException(person='Ryan', adjective='fancy')
Traceback (most recent call last):
...
MyException: Hello, Ryan. Here is my fancy exception class.
对此：
>>> class MyException(Exception):
... def __init__(self, person: str, adjective: str) -> None:
... self.person = person
... self.adjective = adjective
... super().__init__('Hello, {person}. Here is my {adjective} exception class.'
... .format(person=person, adjective=adjective))
>>> raise MyException('Ryan', 'lame')
Traceback (most recent call last):
...
MyException: Hello, Ryan. Here is my lame exception class.
或者这个：
>>> class MyException(Exception):
... pass
>>> raise MyException('Hello, Ryan. Here is my exception class with a message I copy-pasted in 500 places.')
Traceback (most recent call last):
...
MyException: Hello, Ryan. Here is my exception class with a message I copy-pasted in 500 places.
此外，exceptionTemplate参数作为异常实例的成员可用：
>>> try: ... foo() ... except MyException as ex: ... print(ex.person) Ryan
安装
pip install exception-template
不需要额外的依赖关系！
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