of wrote:
>a = 1+3j
>complex(str(a))
>
>Why does this not work ? It should
>
>
Says who?
By normal conventions in Python, "str" attempts only to make a "nice"
human readable representation. The function "repr" is usually expected
to provide output that can be parsed back into the original object.
(Although for the numeric complex type the two produce identical results.)
Further, constructors are rarely expected to parse a string
representation to return an object. The function "eval" is usually
expected to provide that functionality.
So, putting them together, you could expect
eval(repr(a))
to reproduce a, and in fact it does so.
Gary Herron
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