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当我在我的 Flask 应用程序上执行“工头启动”时，我遇到了这个问题。

(venv)Macbook-err:Example ld$ foreman start
14:01:50 web.1  | started with pid 1441
14:01:50 web.1  | Traceback (most recent call last):
14:01:50 web.1  |   File "app.py", line 26, in <module>
14:01:50 web.1  |     connect('mydata', host=os.environ.get('MONGOLAB_URI'))
14:01:50 web.1  |   File "/Users/ld/Dropbox/Semester4/Example/venv/lib/python2.7/site-packages/mongoengine/connection.py", line 160, in connect
14:01:50 web.1  |     register_connection(alias, db, **kwargs)
14:01:50 web.1  |   File "/Users/ld/Dropbox/Semester4/Example/venv/lib/python2.7/site-packages/mongoengine/connection.py", line 54, in register_connection
14:01:50 web.1  |     if "://" in host:
14:01:50 web.1  | TypeError: argument of type 'NoneType' is not iterable
14:01:50 web.1  | exited with code 1
14:01:50 system | sending SIGTERM to all processes
SIGTERM received

在我的 app.py （第 26 行）中，我有：

connect('mydata', host=os.environ.get('MONGOLAB_URI'))
app.logger.debug("Connecting to MongoLabs")

我这样heroku config | grep MONGOLAB_URI > .env做了 .env 文件应该是合法的。

有什么建议么？

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2 回答 2

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heroku config | grep MONGOLAB_URI > .env表单中的输出，MONGOLAB_URI: mong...应将其更改为MONGOLAB_URI=mongo....

于 2013-02-23T19:43:11.577 回答
0

如果你用heroku config | grep MONGOLAB_URI >> .env两个箭头代替它有帮助吗？追加输出？

回复：https ://github.com/johnschimmel/itp-dwd-flask-s3-upload

于 2013-02-23T19:48:05.803 回答