从命令行工具运行python时,argparse 可以解析命令行工具输入的各种数据,通过argparse提供的函数或者属性,我们可以获得它解析到的数据 通过argparse,我们也可以自定义命令行选项,比如pytest -s -v ,-s -v就是pytest定义的命令行选项,通过argparse,我们也可以定义自己的命令行选项 下面是一个例子 命令行执行 pyt
一、argparse传递参数 ArgumentParser.add_argument(name or flags…[, action][, nargs][, const][, default][, type][, choices][, required][, help][, metavar][, dest]) 参数解释: name or flags Either a name or a list of option strings, e.g. foo or -f, --foo. 用于标识参数的参数,...
Command-line arguments are parameters that are specified when running a script. In Python, these arguments are captured as strings in a list calledsys.argv. The first element of this list is always the name of the script itself. The following elements are the arguments that were passed. impor...
The timer program uses argparse to accept an integer as an argument. The integer represents the number of seconds that the timer should wait until exiting, which the program uses sleep() to achieve. It’ll play a small animation representing each passing second until it exits:...
long_options, if specified, must be a list of strings with the names of the long options which should be supported. The leading‘--‘characters should not be included in the option name. Long options which require an argument should be followed by an equal sign (‘=’). Optional arguments...
The sum of values is 15 The choices option Thechoicesoption limits arguments to the given list. mytime.py #!/usr/bin/python import argparse import datetime import time # choices limits argument values to the # given list parser = argparse.ArgumentParser() ...
Argparse does not handle generic 'key value' entries. Without the dash, `key` looks just like a positional argument string. It is possible to accept pairs of strings like `key value' or `key=value' as plain strings (possibly with `nargs=2`, and split them up after parsing. A MXG ...
reader(<file>, dialect='excel', delimiter=',') <list> = next(<reader>) # Returns a row as list of strings. <writer> = csv.writer(<file>, dialect='excel', delimiter=',') <writer>.writerow(<collection>) <writer>.writerows(<coll_of_coll>) Parameters 'dialect' - Master parameter...
from argparse import ArgumentParser from pathlib import Path from waveio import WAVReader def main(): args = parse_args() with WAVReader(args.path) as wav: animate( args.path.name, args.seconds, slide_window(args.seconds, wav), ) def parse_args(): parser = ArgumentParser(description="Anim...
%%writefile {data_prep_src_dir}/data_prep.py import os import argparse import pandas as pd from sklearn.model_selection import train_test_split import logging import mlflow def main(): """Main function of the script.""" # input and output arguments parser = argparse.ArgumentParser() parser...