Maybe I should be more explicit: what seems strange to me is that some complex numbers have a repr that, when entered in the source, produces a different result.  For example, if you want the result ``(-0-0j)`` you have to enter something different.  However, I missed the fact that calling explicitly ``complex(a, b)`` with a and b being floats always gives exactly a+bj with the correct signs.  So I retract my comments.