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On 8/28/2013 4:57 AM, Piotr Dobrogost wrote:

> Having repr(None) =3D=3D 'None' is sure the right thing but why does =
str(None) =3D=3D 'None'? Wouldn't it be more correct if it was an empty =
string?

the point of str(obj) is to return a string containing the obj (a =
sequence of characters if it is unbound or not built-in, etc.)...

If you set the rule str(None)=3D=3D"", then you will cause plenty of =
problems.=20

For instance, if you want to build a string like request=3D"SELECT =
X"+"IN Y"+"WHERE B=3D"+String(B)
to prepare a sequel request, and the field B happens to be sometimes =
"None", you would automatically end up with """SELECT X IN Y WHERE =
B=3D''""" instead of """SELECT X IN Y WHERE B=3D'None'""",
and your sql request will fall into limbos...=