python argparse flag boolean

Published: 06 December 2023
on channel: CodeFix

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Argparse is a Python standard library module that makes it easy to write user-friendly command-line interfaces. In this tutorial, we'll focus on using argparse to handle boolean flags, which are often used to enable or disable certain features of a script or program.
To get started, import the argparse module in your Python script:
Create an ArgumentParser object to define and manage the command-line arguments:
Add a boolean flag to the parser using the add_argument method. In this example, we'll add a --verbose flag:
Here:
Parse the command line arguments using parser.parse_args():
Now, you can use the value of the boolean flag (args.verbose) in your script. For example:
Here's the complete example script:
Save the script as, for example, boolean_flag_example.py and run it from the command line:
This will enable the verbose mode. If you run the script without the --verbose flag, it will run in standard mode.
That's it! You've successfully created a Python script with a boolean flag using argparse.
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