It is a standard convention in Python that mutating methods return None. 

While that does make chaining operations harder (impossible), it is a consistent convention that makes it much harder to get confused about whether a method mutates or not.

It is not going to change.

See previous threads about a “fluent” interface for discussion about the concept.

-CHB

On Mon, Apr 20, 2020 at 8:42 AM J. Pic <jpic@yourlabs.org> wrote:
Hi all,

Currently, list.append(x) mutates the list and returns None.

It would be a little syntactic sugar to return x, for example:

    something = mylist.append(Something())

What do you think ?

Thanks in advance for your replies

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