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The Python 3 Standard Library by Example, Second Edition by Doug Hellmann

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Chapter 17. Runtime Features

This chapter covers the features of the Python standard library that allow a program to interact with the interpreter or the environment in which it runs.

During start-up, the interpreter loads the site (page 1169) module to configure settings specific to the current installation. The import path is constructed from a combination of environment settings, interpreter build parameters, and configuration files.

The sys (page 1178) module is one of the largest in the standard library. It includes functions for accessing a broad range of interpreter and system settings, including interpreter build settings and limits; command-line arguments and program exit codes; exception handling; thread debugging and control; the import ...

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