使用JIRA API for Python

Question

我是python的新手，我正在尝试使用REST API从jira工具获取一张票。最终，我想要获取所有重新打开的票证并打印。我能够登录到该站点，但之后获取NameError。感谢帮助。以下是代码。

from jira.client import JIRA

def connect_to_jira():
    jira_options = {'server': 'jira.com'}
    try:
       jira = JIRA(options=jira_options, basic_auth=(USERNAME, PASSWORD))
    except Exception as e:
       jira = None
    return jira

jira = connect_to_jira
issue = jira.issue('jira-8329')
print (issue)