# import argparse

**[import argparse](https://docs.python.org/3/library/argparse.html)** is a Python import that parses command-line arguments with automatic help generation. Use it to accept options and positional arguments in CLI scripts.

## Example

```python
# Python
# description: parse command-line arguments

import argparse

parser = argparse.ArgumentParser(description="Process files")

# Positional argument
parser.add_argument("input", help="Input file")

# Optional arguments
parser.add_argument("-o", "--output", default="out.txt", help="Output file")
parser.add_argument("-v", "--verbose", action="store_true", help="Verbose mode")
parser.add_argument("-n", "--count", type=int, default=1, help="Repeat count")

args = parser.parse_args()

print(f"Input: {args.input}")
print(f"Output: {args.output}")
print(f"Verbose: {args.verbose}")
print(f"Count: {args.count}")

# Usage: Python script.py input.txt -o output.txt -v -n 5
```

## Common methods

- `ArgumentParser(description)`: create parser
- `add_argument(name, help, type, default, action)`: add argument
- `parse_args()`: parse command-line arguments
- `type=int`: convert to integer
- `action="store_true"`: boolean flag
- `default=value`: default value if not provided
- `required=True`: make argument required
- `choices=[...]`: restrict to specific values