I think it would be logical to have the insert operator for lists.
Similar to list extend operator += , it could use one of augmented
assignment operators, e,g, /=.
L = ["aa"]
L[0] /= "bb"
-> ["bb", "aa"]
L[0] /= [1,2]
-> [[1,2], "aa"]
etc.
Without index it would work like append():
L /= "bb"
#-> ["aa", "bb"]
As for possible spellings I like this one as well:
L[i] ^= e
The proposed solution is meant to have insert() method semantics,
plus it would cover append() method nicely.
Insert and append are very frequent operations, so I wonder
if there was already related suggestion? Is there some technical
problem with implementing this?
Note that there is a trick to 'insert' an element with slicing syntax, e.g.:
L[0:0] = [[1,2]]
-> [[1,2], "aa"]
L[0:0] = ["bb"]
-> ["bb", "aa"]
The trick is to put brackets around the element and so it works as insert().
Though additional brackets look really confusing for this purpose, so I don't
feel like using this seriously.
M
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