Question

我有一些我经常使用的简单python脚本，但有时我会忘记我是如何设置它们的（参数数量，参数顺序等）。此外，它们可能在某些时候对其他人有用。所以，我想添加一个简单的帮助模块。我现在这样做的方法是检查是否只给出了一个参数，以及这个参数是否是＆＃34; help＆＃34;。如果这是真的，则会打印一个小文本，说明脚本的作用以及所需的参数。下面给出的伪代码。我不认为这是理想的原因是因为我最终缩进我的脚本的主体，并在else子句中运行所有内容。如果＆＃34; help＆＃34;我觉得可能有一种更聪明的方式来打印帮助文本。作为参数给出。有什么想法吗？

#! /usr/bin/env python

import sys
import numpy as np
import re

if sys.argv[1:] == ['help']:
        print("""
================================HELP================================
This script generates a molden-readable file of all geometries
from an ORCA geometry optimization calculation. (Sometimes the
standard output file is not read by molden, for some reason...)

The script takes one argument: the output file
If the argument is "help", then the current messages is printed.
=================================================================""")

else:
        here comes the actual script

Answer 1

您可以使用sys.exit（）在帮助消息

之后简单地终止程序

#! /usr/bin/env python

import sys
import numpy as np
import re

if sys.argv[1:] == ['help']:
        print("""
================================HELP================================
This script generates a molden-readable file of all geometries
from an ORCA geometry optimization calculation. (Sometimes the
standard output file is not read by molden, for some reason...)

The script takes one argument: the output file
If the argument is "help", then the current messages is printed.
=================================================================""")
        sys.exit()

#No need for indenting the rest of the script

添加＆＃34;帮助＆＃34;的简单方法模块到脚本

1 个答案: