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In Python, I understand how int and str arguments can be added to scripts.
parser=argparse.ArgumentParser(description="""Mydescription""") parser.add_argument('-l', type=str, default='info', help='String argument') parser.add_argument('-dt', type=int, default ='', help='int argument') What is it for booleans?
Basically I want to pass a flag into my script which will tell the script whether to do a specific action or not.
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You can either use the action with store_true | store_false , or you can use an int and let implicit casting check a boolean value. Using the action , you wouldn't pass a --foo=true and --foo=false argument, you would simply include it if it was to be set to true.
A boolean argument in a function signals exactly the opposite. A flag is used to alter the behaviour of a function based on the context in which it is used. It is a good signal that a function is doing more than one thing and is not cohesive. A flag could cause only a minor change in the logical flow of a function.
Use Boolean Parameter to Pass Boolean Values to a PowerShell Script From a Command Prompt. You can set the data type of your parameter to [bool] to pass Boolean values to a PowerShell script from a command prompt. Copy param([int]$a, [bool]$b) switch($b){ $true {"It is true."} $false {"It is false."} }
The Python Boolean type is one of Python's built-in data types. It's used to represent the truth value of an expression. For example, the expression 1 <= 2 is True , while the expression 0 == 1 is False . Understanding how Python Boolean values behave is important to programming well in Python.
You can either use the action with store_true|store_false, or you can use an int and let implicit casting check a boolean value.
Using the action, you wouldn't pass a --foo=true and --foo=false argument, you would simply include it if it was to be set to true.
python myProgram.py --foo In fact I think what you may want is
parser.add_argument('-b', action='store_true', default=False) If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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