July 19, 2018
10:22 a.m.
On 2018-07-19 14:26, Stephan Houben wrote:
FWIW, I like ??
It is short and distinctive. There is prior art in this spelling in c#. It requires no new keyword, nor does it give new meaning to an existing one.
I understand why ?[ needs to be spelled using only a single ?, but I am afraid it will be used infrequently, and people will accidentally write a??[x] which is legal but different.
I found the example code in the PEP using ?. and ?[ hard to read. ?? and ??= are compelling, though.
One more question: what does this do?
del x x ??= 42
Well, what does this do? del x if x is None: x = 42 [snip]