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sharing your code

Python’s modules implement namespaces

All code in Python is associated with a namespace.
Code in your main Python program (and within IDLE’s shell) is associated That’s a double underscore in
with a namespace called __main__. When you put your code into its own front of the word “main” and
module, Python automatically creates a namespace with the same name as after it.
your module. So, the code in your module is associated with a namespace
called nester.

I guess namespaces are like family names?
If someone is looking for Chris, we need to know
if it’s Chris Murray or Chris Larkin, right? The
family name helps to qualify what we mean, as do
namespace names in Python.

Yes, namespace names are like family names.
When you want to refer to some function from a module
namespace other than the one you are currently in, you need
to qualify the invocation of the function with the module’s
namespace name.
So, instead of invoking the function as print_lol(cast)
you need to qualify the name as nester.print_lol(cast).
That way, the Python interpreter knows where to look. The
format for namespace qualification is: the module’s name, followed
by a period, and then the function name.

The module name, which
identifies the namespace. The function is then invoked as
nester.print_lol(cast) normal, with “cast” provided as
the list to process.
A period separates the module namespace
name from the function name.

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