Python:将参数传递给脚本 [英] Python: pass arguments to a script

问题描述

我有一个工作代码可以从csv列中打印随机行.

I have a working code to print random lines from a csv column.

#!/usr/bin/python

import csv   

import random 

**col**=2

with open('<filename>','r') as f:
        reader=csv.reader(f)
        data=[row[col] for row in reader]
    from random import shuffle
    shuffle(data)
    print '\n'.join(data[:**100**])
    f.close();

我想将此脚本参数化.通过，位置(col)&样本(例如100个值)

I want to paramaterize this script. by passing , position (col) & sample (e.g. 100 values)

我找不到合适的教程来解释这一点.有什么想法吗?

I am unable to find a decent tutorial which would explain this. any thoughts ?

推荐答案

您可以像这样使用sys模块将命令行参数传递给python脚本.

You can use the sys module like this to pass command line arguments to your python script.

import sys

name_of_script = sys.argv[0]
position = sys.argv[1]
sample = sys.argv[2]

然后您的命令行将是...

and then your command line would be...

./myscript.py 10 100

./myscript.py 10 100

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