SyntaxError: positional argument follows keyword argument

To add to the Neeraj precise comment... The rule is that once you use the named argument, the following arguments must be also named. Otherwise, it is not clear what the following positional arguments would mean. Think about the situation like this:

def myfunction(first, second):
    print('first:', first)
    print('second:', second)

myfunction(second=2, 1)

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If it were allowed, what output would you expect? What would be the 1?