不建议将 bool() 函数用作类型转换器。 它所做的只是将空字符串转为 False 而将非空字符串转为 True。 这通常不是用户所想要的。 通常,type 关键字是仅应被用于只会引发上述三种被支持的异常的简单转换的便捷选项。 任何具有更复杂错误处理或资源管理的转换都应当在参数被解析后由下游代码来完成。 For example...
Flag will tell you if a simple flag was set on command line (true is set, false is not). For example$ progname --force varmyFlag*bool=parser.Flag("f","force",...) FlagCounter will tell you the number of times that simple flag was set on command line (integer greater than or eq...
If true/false is required, when it is not given, there is always an error including [--bool {true,false}] and --bool: expected one argument. Maybe not the best of messages, but mistakes don't lead to executing the process with unintended parameters. However, making the value optional,...
The boolean value is always assigned, so that it can be used in logical statements without checking beforehand: import argparse parser = argparse.ArgumentParser(description="Parse bool") parser.add_argument("--do-something", default=False, action="store_true", help="Flag to do something") ...
something", default=False, action="store_true" , help="Flag to do something") args = parser.parse_args() if args.do_something == True: print("Do something") else: print("Don't do something) print("Check that args.do_something=" + str(args.do_something) + " is always a bool"...
import argclass from typing import Optional, Union def converter(value: str) -> Optional[Union[int, str, bool]]: if value.lower() == "none": return None if value.isdigit(): return int(value) if value.lower() in ("yes", "true", "enabled", "enable", "on"): return True return...
A drop-in replacement for argparse that allows options to also be set via config files and/or environment variables. - ConfigArgParse/configargparse.py at master · bw2/ConfigArgParse
)argument_parser.add_argument('--K',type=globals().__getitem__,choices=('np','tf'),help='backend engine, expr.g., `np` or `tf`.',required=True,default='np', )argument_parser.add_argument('--as_numpy',type=bool,help='Convert to numpy ndarrays')argument_parser.add_argument('-...
Dict[str/int, int/str/float/bool/Enum] my_primitive_dict --my_primitive_dict first=1 second=2 dataclass my_sub_class --my_subclass ClassName --my_subclass.PARAMETER List[dataclass] my_list --my_list ClassName ClassName --my_list.0.PARAMETER --my_list.1.PARAMETER Dict[str, dataclass...
set this to True to always require users to provide a config path. config_arg_help_message: the help message to use for the args listed in args_for_setting_config_path. args_for_writing_out_config_file: A list of one or more command line ...