Python sys module

The sys module in Python provides access to some variables and functions that interact with the interpreter. Some of the commonly used functions and attributes of the sys module are:

  1. sys.argv: A list in Python that contains the command-line arguments passed to the Python script.
  2. sys.exit([arg]): Exit from Python interpreter with an optional exit code. The default exit code is zero, which means that the program exits successfully.
  3. sys.stdin, sys.stdout, and sys.stderr: These are file objects that represent the standard input, output, and error streams, respectively. You can use these to read or write data from or to the standard streams.
  4. sys.path: A list of strings that specifies the search path for modules. When you import a module, Python searches for it in the directories specified in sys.path.
  5. sys.platform: A string that specifies the platform on which Python is running.
  6. sys.version: A string that contains the version number of the Python interpreter.
  7. sys.getsizeof(object[, default]): Returns the size of the object in bytes. The second argument is the default value that is returned when the size cannot be determined.
  8. sys.exc_info(): Returns information about the most recent exception that was raised. The information includes the type, value, and traceback of the exception.

These are just a few examples of the functions and attributes provided by the sys module. You can use this module for many other purposes, such as manipulating the Python interpreter, getting information about the system, etc.