code.py 文件源码

def __str__(self):
        try:
            fn = str(self.path)
        except py.error.Error:
            fn = '???'
        name = self.frame.code.name
        try:
            line = str(self.statement).lstrip()
        except KeyboardInterrupt:
            raise
        except:
            line = "???"
        return "  File %r:%d in %s\n  %s\n" %(fn, self.lineno+1, name, line)