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Hi
I got the following error when I tried to import requests or to use urllib packages.
42 | 20:42:56:
Build Warning: File: n/a Line:0 Column:0 - Sorry, 'open(' is not whitelisted within QuantConnect. Remove this code statement
43 | 20:42:57:
Build Warning: File: n/a Line:0 Column:0 - Sorry, 'open(' is not whitelisted within QuantConnect. Remove this code statement
44 | 20:43:00:
Build Warning: File: n/a Line:0 Column:0 - Sorry, 'open(' is not whitelisted within QuantConnect. Remove this code statement
45 | 20:43:18:
Build Error: File: test.py Line:1 Column:0 - ImportError: No module named requests
46 | 20:43:38:
Build Error: File: test.py Line:1 Column:0 - ImportError: No module named requests
47 | 20:45:24:
Build Error: File: test.py Line:1 Column:0 - ImportError: No module named requests
Are Python packages requests and urllib not allowed to use on QuantConnect cloud servers?
Also, any plans to support Python 3.x ?
Thanks
Alexandre Catarino
What is the file format? If it is csv, you can use pandas.read_csv:
import pandas as pd url = "https://www.dropbox.com/s/2az14r5xbx4w5j6/daily-stock-picker-live.csv?dl=1" df = pd.read_csv(url, header = None)We have no plans to support Python 3.x. Our focus is on making the current python implementation better.
CloudTrader
Hi Alexandre,
Thanks. Format is JSON. What I want to do is a REST API call like this:
url = "https://<sentiment analysis web service>" response = requests.get(url, auth=(user, token))response is returned by REST API endpoint as JSON data.
Alexandre Catarino
For security reasons, we cannot whitelist urllib nor requests. Since pandas.read_csv or pandas.read_json will not work for your case, you can try to implement a custom data data feed.
However, we know that in some cases none of the above will suffice, therefore we will work on a feature that implement enable us to fetch data from an url. Something like:
url = "https://<sentiment analysis web service>" response = self.Download(url, user, token)CloudTrader
Alexandre, this would be really very useful to have such implementation added to LEAN. Many thanks!
Alexandre Catarino
We have merged the solution. It works like this:
url = "https://<sentiment analysis web service>" auth = {"user": "CloudTrader", "token": "mysupersecrettoken"} response = self.Download(url, auth)where response is a string.
CloudTrader
Alexandre, this is awesome! Is this the C# method declaration, which it was named before Fetch?
public string Download(string address, PyObject headers = null, string userName = null, string password = null)Alexandre Catarino
Yes, this is it. We rename me for clarity.
CloudTrader
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