在Python中将* args传递给string.format? [英] Pass *args to string.format in Python?

问题描述

是否可以将* args传递给string.format?我具有以下功能:

Is it possible to pass *args to string.format? I have the following function:

@classmethod
def info(cls, component, msg, *args):
    """Log an info message"""
    cls.__log(cls.Level.INFO, component, msg, args)

@classmethod
def __log(cls, level, component, msg, *args):
    """Log a message at the requested level"""
    logging.getLogger("local").log(level, " - ".join([component, msg.format(args)]))

当我尝试使用LogCapture对其进行单元测试时，我得到以下信息:

When I try unit test it with LogCapture I get the following:

def test_logWithArgs(self):
    Logger.level(Logger.Level.INFO)
    with LogCapture(level=Logger.Level.INFO) as lc:
        Logger.info("MyComponent", "{0}", "TestArg")
        lc.check(("local", "INFO", "MyComponent - TestArg"))


AssertionError: Sequence not as expected:

same:
()

first:
(('local', 'INFO', 'MyComponent - TestArg'),)

second:
(('local', 'INFO', "MyComponent - (('TestArg',),)"),)

推荐答案

我认为您想要做的是

msg.format(*args)

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