Numpy function argument confussion list or tuple-CodePudding

I am new to numpy and I keep getting confused in arguments passing, some times its list and some times tuple, like this https://numpy.org/doc/stable/reference/generated/numpy.vstack.html

numpy.vstack(tup)

doc says it takes tuple, but if I pass list it also works

np.vstack((c1, c2))
array([[1, 1],
       [2, 2],
       [3, 3],
       [4, 4]])

and with list its the same output

np.vstack([c1, c2])
array([[1, 1],
       [2, 2],
       [3, 3],
       [4, 4]])

CodePudding user response：

As @hpaulj correctly says, the input parameter is just named tup but tup just has to be a sequence of np.arrays.

A sequence can be things like a tuple, array, pandas.Series etc.

If it has to be only a tuple it would be stated as such i.e "tup: tuple" and not "tup: sequence" in the docs