Pickle in Python is defined as a Python module that is used for serializing or de-serializing Python object structures. Pickling is the process of performing these operations, and hence also called marshaling, flattening, etc. Why do we Pickle Python objects? Well, it's for storing any Python objects on a disk. During this Pickling or flattening process, it converts Python objects (dict, list, etc.) into byte-streams or character-streams, which could then be saved onto a disk.
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