Issue 32301: Typo in array documentation (original) (raw)
The given version is correct: the comma is only required if the initializer is given. Your suggested version
typecode, [initializer]
implies that the comma is always required whether the initializer is given or not.
If we want to be absolutely pedantic, we could write:
.. class:: array(typecode[, [initializer]])
as trailing commas are legal in function calls. But I don't think that makes for good documentation.