[Bug report] cocopp stalls when using online data

[nikohansen]

The previous url for the "official data archive" is offline. Hence the code may stall like

import cocopp
cocopp.main('glas')

Post-processing (1)
  downloading http://coco.gforge.inria.fr/data-archive/bbob/2020/HE-ES_Glasmachers.tgz to ...

and bail after a while like

TimeoutError                              Traceback (most recent call last)
~/opt/anaconda3/lib/python3.7/urllib/request.py in do_open(self, http_class, req, **http_conn_args)
   1318                 h.request(req.get_method(), req.selector, req.data, headers,
-> 1319                           encode_chunked=req.has_header('Transfer-encoding'))
   1320             except OSError as err: # timeout error

~/opt/anaconda3/lib/python3.7/http/client.py in request(self, method, url, body, headers, encode_chunked)
   1251         """Send a complete request to the server."""
-> 1252         self._send_request(method, url, body, headers, encode_chunked)
   1253 

[...]

   1346     def http_open(self, req):
-> 1347         return self.do_open(http.client.HTTPConnection, req)
   1348 
   1349     http_request = AbstractHTTPHandler.do_request_

~/opt/anaconda3/lib/python3.7/urllib/request.py in do_open(self, http_class, req, **http_conn_args)
   1319                           encode_chunked=req.has_header('Transfer-encoding'))
   1320             except OSError as err: # timeout error
-> 1321                 raise URLError(err)
   1322             r = h.getresponse()
   1323         except:

URLError: <urlopen error [Errno 60] Operation timed out>

[nikohansen]

The following workaround should be good for users who have cocopp already installed:

import cocopp
cocopp.archiving.coco_url = 'https://numbbo.github.io/gforge'
cocopp.archives = cocopp.archiving.official_archives = cocopp.archiving.OfficialArchives()
cocopp.archives.set_as_attributes_in() 

After executing these lines, the original functionality should be back. Previously downloaded data will be downloaded again when necessary.

[nikohansen]

Installing the latest cocopp module like

pip install --upgrade cocopp

should also fix this issue.

[brockho]

Small note: The above did not work for me as I had already the cocopp module installed with the same version number. If you, upon typing the above, also get something like:

Requirement already satisfied: cocopp in c:\users\dimo\anaconda3\lib\site-packages\cocopp-2.4.28-py3.7.egg (2.4.28)

you should try a pip uninstall cocopp --yes before. This worked for me.