In Python, file handling is an essential skill for working with data. You can access and manipulate file descriptors, which are unique identifiers associated with open files in Linux. Standard input (STDIN), standard output (STDOUT), and standard error (STDERR) have predefined file descriptors (0, 1, and 2, respectively). The fileno() method of a file object in Python can retrieve the file descriptor. To close a file descriptor, the os.close() method is used.
Additionally, Python provides the pickle module for serializing and deserializing Python objects. This module is handy for saving and loading complex data structures. JSON (JavaScript Object Notation) is a common format for data exchange in Python. The json module allows parsing, converting between JSON and Python objects, and pretty-printing JSON. It is a powerful tool for handling structured data.
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