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# objspace.usemodules.struct

- name: struct
- description: use module struct
- command-line: –withmod-struct
- command-line for negation: –withoutmod-struct
- option type: boolean option
- default: False

Use the built-in ‘struct’ module. This module is expected to be working and is included by default. There is also a pure Python version in lib_pypy which is used if the built-in is disabled, but it is several orders of magnitude slower.

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