introduction part ithe python language tutorial introduction lexical conventions and syntax types and objects operators and expressions program structure and control flow functions and functional programming classes and object-oriented programming modulespackagesand distribution input and output execution environment testingdebuggingprofilingand tuning part iithe python library built-in functions python runtime services mathematics data structuresalgorithmsand code simplification string and text handling python database access file and directory handling operating system services threads and concurrency network programming and sockets internet application programming web programming internet data handling and encoding miscellaneous library modules part iiiextending and embedding extending and embedding python appendixpython index lib fl ff