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| 1 | \chapter{Data Persistence}
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| 2 | \label{persistence}
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| 3 |
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| 4 | The modules described in this chapter support storing Python data in a
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| 5 | persistent form on disk. The \module{pickle} and \module{marshal}
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| 6 | modules can turn many Python data types into a stream of bytes and
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| 7 | then recreate the objects from the bytes. The various DBM-related
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| 8 | modules support a family of hash-based file formats that store a
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| 9 | mapping of strings to other strings. The \module{bsddb} module also
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| 10 | provides such disk-based string-to-string mappings based on hashing,
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| 11 | and also supports B-Tree and record-based formats.
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| 12 |
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| 13 | The list of modules described in this chapter is:
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| 14 |
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| 15 | \localmoduletable
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