Converting = to ==

[Jp Calderone]

Warren Postma wrote:
> 
> I have an "end user query tool" that uses Python expressions, but I want
> comparisons to be able to be written either as A=B or A==B then I want to
> compare them using Python's Eval function.
> 
> Problem is if you search and replace all = with == then users have to use
> the single-equals convention, and some of them will be python programmers,
> and will want to use the "non idiot mode" of the query tool.
> 
> So i did this, but is there a better way?
> 
>     >>> string.replace( string.replace("a=b a==b", "=", "=="), "====","==")
>     a==b a==b
> 
> Warren

 You can use regular expressions.  I'm not going to try to give you the
exact one off hand, because I'll get it wrong, but basically replace
"[anything-but-equals]=[anything-but-equals]" with "[first part]==[second
part]"
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