Using arguments in python and argparse

### using arguments in python with argparse

in python, the `argparse` module provides a convenient way to parse command-line arguments and options. it makes it easy to create user-friendly command-line interfaces for your scripts and programs.

here's a step-by-step tutorial on how to use arguments in python with `argparse`:

1. **import the `argparse` module:**

first, you need to import the `argparse` module in your python script.



2. **create an argumentparser object:**

next, create an `argumentparser` object, which will handle parsing the command-line arguments.



3. **add arguments to the parser:**

you can add arguments to the parser using the `add_argument()` method. specify the name of the argument, its type, help message, default value, etc.



4. **parse the arguments:**

parse the command-line arguments using the `parse_args()` method. this will return a namespace object containing the parsed arguments.



5. **access the arguments:**

you can access the parsed arguments using dot notation on the `args` namespace object.



6. **complete example:**

here's a complete example demonstrating the usage of arguments in python with `argparse`:



7. **running the script:**

you can run the script from the command line and pass arguments like this:



the script will parse the arguments and print the input and output file paths.

by following these steps, you can easily handle command-line arguments in your python scripts using `argparse`. it provides a structured and user-friendly way to interact with your programs from the command line.

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#python argparse default value
#python argparse required argument
#python argparse store_true
#python argparse example
#python argparse optional arguments

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