tornado parse_config_file not working

Question

I have a config file db.py . It looks as:

user="user"
password="pass"
charset="utf8"
collation="utf8_bin"
host="localhost"
db="dbname"

I'm trying the following code:

from tornado.options import options, parse_config_file
parse_config_file('db.py')

print options.charset

I'm getting the following error:

Traceback (most recent call last):
  File "", line 5, in <module>
    print options.charset
  File "/usr/lib/python2.7/dist-packages/tornado/options.py", line 97, in __getattr__
    raise AttributeError("Unrecognized option %r" % name)
AttributeError: Unrecognized option 'charset'

Can someone tell me if I'm doing something wrong? Thanks.

As answered by @JohnZwinck, I used the following:

from tornado.options import define, options, parse_config_file
define("charset", type=str)
parse_config_file('db.py')
print options.charset

and it works.

Answer 1

您需要在解析和使用它们之前“ 定义 ”您的选项。