Print command line arguments with argparse?

Print command line arguments with argparse?

argparse is a Python standard library module that makes it easy to write user-friendly command-line interfaces. You can use argparse to parse command-line arguments and options provided by the user. Here's how you can use argparse to print command-line arguments:

import argparse # Create an ArgumentParser object parser = argparse.ArgumentParser(description="Print command-line arguments") # Add a positional argument parser.add_argument("arg1", help="First argument") # Add optional arguments parser.add_argument("--optional_arg", help="Optional argument") # Parse the arguments args = parser.parse_args() # Print the arguments print("Positional argument 1:", args.arg1) print("Optional argument:", args.optional_arg)

Let's assume you save this script as print_args.py. You can run it from the command line as follows:

python print_args.py value1 --optional_arg value2

In this example, value1 is provided as the positional argument and value2 is provided as the value for the optional argument --optional_arg.

Remember that positional arguments are required and must be provided in the order specified. Optional arguments are preceded by -- and can be provided in any order. If an optional argument is not provided, its value in the args namespace will be None.

You can modify the script according to your specific use case and the number of arguments you need to handle.

Examples

  1. "Python argparse print command line arguments"

    • Description: Users often search for ways to print the command-line arguments parsed using the argparse module in Python.
    • Code:
      import argparse # Create ArgumentParser object parser = argparse.ArgumentParser(description="Example argparse usage") # Add argument parser.add_argument('input_file', type=str, help='Input file path') # Parse arguments args = parser.parse_args() # Print command-line arguments print("Input file:", args.input_file)

  2. "Print arguments parsed with argparse in Python"

    • Description: This query indicates the intent to print the arguments parsed using argparse for further processing or debugging.
    • Code:
      import argparse # Create ArgumentParser object parser = argparse.ArgumentParser(description="Example argparse usage") # Add arguments parser.add_argument('-f', '--file', type=str, help='Input file path') parser.add_argument('-n', '--number', type=int, help='A number') # Parse arguments args = parser.parse_args() # Print parsed arguments print("File:", args.file) print("Number:", args.number)

  3. "Python argparse print usage and arguments"

    • Description: Users may search for ways to print the usage message along with the parsed arguments using argparse in Python.
    • Code:
      import argparse # Create ArgumentParser object parser = argparse.ArgumentParser(description="Example argparse usage") # Add arguments parser.add_argument('input_file', type=str, help='Input file path') # Parse arguments args = parser.parse_args() # Print usage and parsed arguments parser.print_usage() print("Input file:", args.input_file)

  4. "Python argparse print help message and arguments"

    • Description: Users may want to print the help message along with the parsed arguments using argparse for better understanding and documentation.
    • Code:
      import argparse # Create ArgumentParser object parser = argparse.ArgumentParser(description="Example argparse usage") # Add arguments parser.add_argument('-f', '--file', type=str, help='Input file path') # Parse arguments args = parser.parse_args() # Print help message and parsed arguments parser.print_help() print("File:", args.file)

  5. "Print command line arguments using argparse in Python script"

    • Description: This query is straightforward, seeking methods to print the command-line arguments parsed using argparse within a Python script.
    • Code:
      import argparse # Create ArgumentParser object parser = argparse.ArgumentParser(description="Example argparse usage") # Add arguments parser.add_argument('input_file', type=str, help='Input file path') # Parse arguments args = parser.parse_args() # Print command-line arguments print("Input file:", args.input_file)

  6. "Python argparse print all arguments"

    • Description: Users might want to print all the arguments parsed using argparse, regardless of whether they are required or optional.
    • Code:
      import argparse # Create ArgumentParser object parser = argparse.ArgumentParser(description="Example argparse usage") # Add arguments parser.add_argument('-f', '--file', type=str, help='Input file path') parser.add_argument('-n', '--number', type=int, help='A number') # Parse arguments args = parser.parse_args() # Print all parsed arguments for arg in vars(args): print(arg, ':', getattr(args, arg))

  7. "Python print argparse arguments with description"

    • Description: Users might want to print the parsed arguments along with their descriptions provided in the argparse setup.
    • Code:
      import argparse # Create ArgumentParser object parser = argparse.ArgumentParser(description="Example argparse usage") # Add arguments parser.add_argument('input_file', type=str, help='Input file path') parser.add_argument('-n', '--number', type=int, help='A number') # Parse arguments args = parser.parse_args() # Print parsed arguments with description print("Input file:", args.input_file) print("Number:", args.number)

  8. "Python argparse print positional arguments"

    • Description: Users may specifically want to print only the positional arguments parsed using argparse in their Python script.
    • Code:
      import argparse # Create ArgumentParser object parser = argparse.ArgumentParser(description="Example argparse usage") # Add positional argument parser.add_argument('input_file', type=str, help='Input file path') # Parse arguments args = parser.parse_args() # Print positional argument print("Input file:", args.input_file)

  9. "Print argparse arguments with default values in Python"

    • Description: Users may want to print the parsed arguments along with their default values set in the argparse setup.
    • Code:
      import argparse # Create ArgumentParser object parser = argparse.ArgumentParser(description="Example argparse usage") # Add argument with default value parser.add_argument('-n', '--number', type=int, default=10, help='A number') # Parse arguments args = parser.parse_args() # Print argument with default value print("Number:", args.number)

  10. "Python argparse print arguments without parsing"

    • Description: Some users may want to print the provided arguments without actually parsing them using argparse, perhaps for debugging purposes.
    • Code:
      import argparse # Create ArgumentParser object parser = argparse.ArgumentParser(description="Example argparse usage") # Add argument parser.add_argument('input_file', type=str, help='Input file path') # Print arguments without parsing args = parser.parse_args([]) print("Input file:", args.input_file)

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