sys module in Python

sys module in Python

The sys module in Python provides access to some variables and functions that are used or maintained by the interpreter itself. It is a built-in module, which means it is always available to use without installing any external libraries.

Some of the commonly used functions and variables in the sys module are:

  1. sys.argv: A list in Python, which contains the command-line arguments passed to the script. With this variable, you can access the command-line arguments in your Python program.
  2. sys.exit(): This function is used to exit the Python interpreter. You can pass an optional exit code as an argument, which is returned to the calling process.
  3. sys.platform: A string that contains the name of the operating system on which the Python interpreter is running. For example, 'linux' on Linux, 'win32' on Windows, etc.
  4. sys.version: A string that contains the version number of the Python interpreter.
  5. sys.path: A list of strings that specifies the search path for modules. When you import a module in Python, the interpreter searches for it in the directories listed in sys.path.
  6. sys.stdin, sys.stdout, and sys.stderr: These are file-like objects that represent the standard input, output, and error streams, respectively.

These are just a few examples of what the sys module can do. It is a powerful module and can be used to perform many system-level tasks in Python.

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