Loading a Python collection from an text-file

[Ilias Lazaridis]

within a python script, I like to create a collection which I fill with 
values from an external text-file (user editable).

How is this accomplished the easiest way (if possible without the need 
of libraries which are not part of the standard distribution)?

something like:

text-file:
{peter, 16},
{anton, 21}

-

within code:

users.load(text-file.txt)

for user in users
   user.name
   user.age

.

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