[issue43025] Use normal 'i' character to denote imaginary part of complex numbers

[Steven D'Aprano]

Steven D'Aprano <steve+python at pearwood.info> added the comment:

I think it always helps to look at what other languages do. It doesn't 
mean that we must follow them, but it may help us decide that the choice 
made in Python 1 was a mistake and it is worth going through the pain of 
deprecation, or that it is still justified and we should stick to the 
current design. If everyone else is making a different decision, it pays 
to at least consider why. If they're making the same decision we did, 
that helps justify what we did.

For what it's worth, although my personal preference would be for i, I 
think that going through a disruptive deprecation period is not 
justified. j is good enough. I haven't got an opinion on supporting both 
i and j.

Eric, if you do follow through with writing a PEP, remember that you 
have to make the best case that you can for the change. And you might be 
surprised: when Guido volunteered me to write the dict addition PEP, I 
initially intended it to be rejected. I never expected that it would be 
accepted with a change of operator.

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<https://bugs.python.org/issue43025>
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