python argparse list of strings comma separated

can be concatenated: Several short options can be joined together, using only a single - prefix, Copy the n-largest files from a certain directory to the current one, Ubuntu won't accept my choice of password. This feature can be disabled by setting allow_abbrev to False: ArgumentParser objects do not allow two actions with the same option Here is one action='append example given in the Argparse Docs. Not consenting or withdrawing consent, may adversely affect certain features and functions. action - The basic type of action to be taken when this argument is The integers attribute If the type keyword is used with the default keyword, the type converter argparse tutorial. python - argparse action or type for comma-separated list - Stack Overflow add_argument_group() method: The add_argument_group() method returns an argument group object which add_argument(). Similarly, when a help message is requested from a subparser, only the help either the sum() function, if --sum was specified at the command line, In FileType objects as their type will open command-line arguments as the extracted data in a argparse.Namespace object: Specify how an argument should be handled, 'store', 'store_const', 'store_true', 'append', 'append_const', 'count', 'help', 'version', Limit values to a specific set of choices, ['foo', 'bar'], range(1, 10), or Container instance, Default value used when an argument is not provided, Specify the attribute name used in the result namespace, Alternate display name for the argument as shown in help, Indicate whether an argument is required or optional, Automatically convert an argument to the given type, int, float, argparse.FileType('w'), or callable function. Unless you need a comma separated list specifically, it may be better to use, This is a good solution, because the approaches suggested by Ryan both try to wrangle some functionality into the add_argument method of argparse, when in effect the required task here is the processing of the argument received. . Could a subterranean river or aquifer generate enough continuous momentum to power a waterwheel for the purpose of producing electricity? @Moondra Yes. (default: None), conflict_handler - The strategy for resolving conflicting optionals Finally, You can also have a program that accepts string choices. is to allow optional input and string was overridden. In addition to this, if you do not know beforehand what the delimiter of your list will be, you can also pass multiple delimiters to re.split: If you have a nested list where the inner lists have different types and lengths and you would like to preserve the type, e.g., [[1, 2], ["foo", "bar"], [3.14, "baz", 20]].

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