>> the string class, which has some annoying tight couplings to "string"
and 'string')
> What does that mean?
> It sounds like you are complaining that the syntax for creating strings
creates strings. Or possibly the other way around: that strings are
created by string syntax. What did you expect?
Here's my understanding:
You can't extend the string class to add new functionality. You can only
subclass it. Because of this, "character-strings" cannot be suffixed with
new functionality.
For instance, you can write x='FOO'.lower() and x ends up being "foo";
That's a function of the actual str class.
Buf if you subclass str as MyStr and create a MyStr object of
"192.168.1.100", you cannot write...
"192.168.1.100".TestDottedQuad()
...because "192.168.1.100" can only be an instance of str, not of MyStr.
You have to run TestDottedQuad() either indirectly on a variable of type
MyStr, or as a parameter to a function in a MyStr class object.
The root problem is that you cannot extend a class. This is one of the
limits that result. Which, yes, I find very annoying.
So, some years ago, I wrote a simple precompiler that enables syntax that
extends built-in classes -- without monkey patching Python. So you can
create a virtual class extension, write x='192.168.1.100'.TestDottedQuad()
or x="192.168.1.100".TestDottedQuad() in your input source to be
precompiled, and it will work as it should in the resulting output source.
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