Module parserutils

Validate that the argument is a number over a given range.

Parameters:

• arg (str) - The argument to validate
• top (float or int) - The upper limit of the allowed range
• bottom (float or int) - The lower limit of the allowed range
• top_allowed (bool) - Whether arg may take the top value or not (whether the upper limit is inclusive or exclusive)
• bottom_allowed (bool) - Whether arg may take the bottom value or not (whether the bottom limit is inclusive or exclusive)
• typer (callable) - Should be one of the built-in float or int functions and defines the type of the value returned from this function.

Returns: float or int

The argument converted to a float or int, depending on the value of the typer keyword argument

@raise argparse.ArgumentTypeError: If the argument cannot be converted to a ranged floating point number in the given range

Validate that the argument is an int over a given range

see type_ranged_num for documentation of arguments, return values and exceptions raised

Validate that the argument is a positive float

see type_ranged_num for documentation of arguments, return values and exceptions raised

Validate that the argument is a positive int

see type_ranged_num for documentation of arguments, return values and exceptions raised

Validate that the argument is an existing filename

Parameters:

• arg (str) - The argument to validate

Returns: str

The unaltered argument

@raise argparse.ArgumentTypeError: If the given filename does not exist