python传参为变量赋值

1034136669

现有这么一段代码:
#!/usr/bin/env python
# _*_ coding:utf-8 _*_

from redmine import Redmine
redmine = Redmine("link", username="chen", password="pt2539ll")
issue0 = redmine.issue.create(project_id='test', subject='issue_from_python', tracker_id=5, description='这是一个由python脚本创建的问题', status_id=1, priority_id=5, start_date='2015-06-01', due_date='2015-06-05', estimated_hours=24, done_ratio=40)

这段脚本的作用是用接口向Redmine(一种版本的WIKI)提交一个问题,请问如何把这段代码中的project_id,subject,tracker_id等字段的值通过传递参数的方式向它们它们,类似于如下形式:
issue_create.py  -username chen -password pt2539 -pid test -sub 'issue_from'   
请问该如何实现,网上找了很多的资料,大概知道要用python的getopt模块,但不知道具体的实现方式,请各位大神多多指教,谢谢！在线等

reb00t

1. import argparse
   
2. import sys
   
3. parser = argparse.ArgumentParser(description="show this help message and exit")
   
4. parser.add_argument("-u", "-username",  dest="username", help="username")
   
5. parser.add_argument("-p", "-password", dest="password", nargs='?', help="passwd")
   
6. parser.add_argument("-pid",dest="pid", nargs='?', help="project_id")
   
7. parser.add_argument("-s", "-sub",dest="sub", nargs='?', help="subject")
   
8. args = parser.parse_args()
   
9. if not args.username:
   
10.     sys.exit(1)
    
11. username, password, pid, sub = args.username, args.password, args.pid, args.sub
    
12. print username, password, pid, sub

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