[issue4907] ast.literal_eval does not properly handled complex numbers

[Mark Dickinson]

Mark Dickinson <dickinsm at gmail.com> added the comment:

I'm not sure that this is desirable behaviour.  There's no such thing as a 
complex literal---only imaginary literals.  Why allow evaluation of 2+1j
but not of 2 + 1, or 2*1j.

In any case, I'm not sure that the patch behaves as intended.  For 
example,

>>> ast.literal_eval('2 + (3 + 4j)')
(5+4j)

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nosy: +marketdickinson

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