python

I am new to python. I need some information on following specifically: - Background & Evolution of python - current application areas - future trend. Kindly any one provide me such information or tell websites for that purpose. -- http://mail.python.org/mailman/listinfo/python-list

Data types

What are the user defined types in Python? Can we call lists, tuples & dictionaries user-defined data types? -- http://mail.python.org/mailman/listinfo/python-list