Can't connect to HTTPS URL because the SSL module is not available.

[mkvdhulst]

Affected Brightway Package

bw2calc

What's broken or not working as expected?

The 2nd notebook requires an additional package installation for "Interfaces".

await micropip.install("requests")

Subsequently calculating the LCA score returns an error:

What's the error message?

Querying energidataservice.dk API
---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
Cell In[49], line 5
      1 lca = bc.LCA(
      2     demand={bike: 1},
      3     data_objs=[dp_static, dk_elec_dp],
      4 )
----> 5 lca.lci()
      6 lca.lcia()
      7 lca.score

File /lib/python3.11/site-packages/bw2calc/lca.py:354, in LCA.lci(self, demand, factorize)
    339 """
    340 Calculate a life cycle inventory.
    341 
   (...)
    351 
    352 """
    353 if not hasattr(self, "technosphere_matrix"):
--> 354     self.load_lci_data()
    355 if demand is not None:
    356     self.__check_demand(demand)

File /lib/python3.11/site-packages/bw2calc/lca.py:217, in LCA.load_lci_data(self, nonsquare_ok)
    202 if (
    203     len(self.technosphere_mm.row_mapper) != len(self.technosphere_mm.col_mapper)
    204     and not nonsquare_ok
    205 ):
    206     raise NonsquareTechnosphere(
    207         (
    208             "Technosphere matrix is not square: {} activities (columns) and {} products (rows). "
   (...)
    214         )
    215     )
--> 217 self.biosphere_mm = mu.MappedMatrix(
    218     packages=self.packages,
    219     matrix="biosphere_matrix",
    220     use_arrays=self.use_arrays,
    221     use_distributions=self.use_distributions,
    222     seed_override=self.seed_override,
    223     col_mapper=self.technosphere_mm.col_mapper,
    224     empty_ok=True,
    225 )
    226 self.biosphere_matrix = self.biosphere_mm.matrix
    227 self.dicts.biosphere = partial(self.biosphere_mm.row_mapper.to_dict)

File /lib/python3.11/site-packages/matrix_utils/mapped_matrix.py:139, in MappedMatrix.__init__(self, packages, matrix, use_vectors, use_arrays, use_distributions, row_mapper, col_mapper, seed_override, indexer_override, diagonal, transpose, custom_filter, empty_ok)
    125     dimensions = (
    126         int(self.row_mapper.index_array.max() + 1),
    127         int(self.col_mapper.index_array.max() + 1),
    128     )
    130 self.matrix = sparse.coo_matrix(
    131     (
    132         np.zeros(len(row_indices)),
   (...)
    136     dtype=np.float64,
    137 ).tocsr()
--> 139 self.rebuild_matrix()

File /lib/python3.11/site-packages/matrix_utils/mapped_matrix.py:165, in MappedMatrix.rebuild_matrix(self)
    163 self.matrix.data *= 0
    164 for group in self.groups:
--> 165     row, col, data = group.calculate()
    166     if group.package.metadata["sum_inter_duplicates"]:
    167         self.matrix[row, col] += data

File /lib/python3.11/site-packages/matrix_utils/resource_group.py:251, in ResourceGroup.calculate(self, vector)
    249 else:
    250     try:
--> 251         data = next(self.data_original)
    252     except TypeError:
    253         data = self.data_original

Cell In[44], line 10, in DenmarkCO2Interface.__next__(self)
      8 URL = "https://api.energidataservice.dk/dataset/co2emis?start=now-P1D&end=now"
      9 print("Querying energidataservice.dk API")
---> 10 result = requests.get(URL).json()['records'][0]['CO2Emission']
     11 return np.array([result]) / 1000

File /lib/python3.11/site-packages/requests/api.py:73, in get(url, params, **kwargs)
     62 def get(url, params=None, **kwargs):
     63     r"""Sends a GET request.
     64 
     65     :param url: URL for the new :class:`Request` object.
   (...)
     70     :rtype: requests.Response
     71     """
---> 73     return request("get", url, params=params, **kwargs)

File /lib/python3.11/site-packages/requests/api.py:59, in request(method, url, **kwargs)
     55 # By using the 'with' statement we are sure the session is closed, thus we
     56 # avoid leaving sockets open which can trigger a ResourceWarning in some
     57 # cases, and look like a memory leak in others.
     58 with sessions.Session() as session:
---> 59     return session.request(method=method, url=url, **kwargs)

File /lib/python3.11/site-packages/requests/sessions.py:589, in Session.request(self, method, url, params, data, headers, cookies, files, auth, timeout, allow_redirects, proxies, hooks, stream, verify, cert, json)
    584 send_kwargs = {
    585     "timeout": timeout,
    586     "allow_redirects": allow_redirects,
    587 }
    588 send_kwargs.update(settings)
--> 589 resp = self.send(prep, **send_kwargs)
    591 return resp

File /lib/python3.11/site-packages/requests/sessions.py:703, in Session.send(self, request, **kwargs)
    700 start = preferred_clock()
    702 # Send the request
--> 703 r = adapter.send(request, **kwargs)
    705 # Total elapsed time of the request (approximately)
    706 elapsed = preferred_clock() - start

File /lib/python3.11/site-packages/requests/adapters.py:486, in HTTPAdapter.send(self, request, stream, timeout, verify, cert, proxies)
    483     timeout = TimeoutSauce(connect=timeout, read=timeout)
    485 try:
--> 486     resp = conn.urlopen(
    487         method=request.method,
    488         url=url,
    489         body=request.body,
    490         headers=request.headers,
    491         redirect=False,
    492         assert_same_host=False,
    493         preload_content=False,
    494         decode_content=False,
    495         retries=self.max_retries,
    496         timeout=timeout,
    497         chunked=chunked,
    498     )
    500 except (ProtocolError, OSError) as err:
    501     raise ConnectionError(err, request=request)

File /lib/python3.11/site-packages/urllib3/connectionpool.py:769, in HTTPConnectionPool.urlopen(self, method, url, body, headers, retries, redirect, assert_same_host, timeout, pool_timeout, release_conn, chunked, body_pos, preload_content, decode_content, **response_kw)
    766 try:
    767     # Request a connection from the queue.
    768     timeout_obj = self._get_timeout(timeout)
--> 769     conn = self._get_conn(timeout=pool_timeout)
    771     conn.timeout = timeout_obj.connect_timeout  # type: ignore[assignment]
    773     # Is this a closed/new connection that requires CONNECT tunnelling?

File /lib/python3.11/site-packages/urllib3/connectionpool.py:295, in HTTPConnectionPool._get_conn(self, timeout)
    292     log.debug("Resetting dropped connection: %s", self.host)
    293     conn.close()
--> 295 return conn or self._new_conn()

File /lib/python3.11/site-packages/urllib3/connectionpool.py:1056, in HTTPSConnectionPool._new_conn(self)
   1048 log.debug(
   1049     "Starting new HTTPS connection (%d): %s:%s",
   1050     self.num_connections,
   1051     self.host,
   1052     self.port or "443",
   1053 )
   1055 if not self.ConnectionCls or self.ConnectionCls is DummyConnection:  # type: ignore[comparison-overlap]
-> 1056     raise ImportError(
   1057         "Can't connect to HTTPS URL because the SSL module is not available."
   1058     )
   1060 actual_host: str = self.host
   1061 actual_port = self.port

ImportError: Can't connect to HTTPS URL because the SSL module is not available.

In order to avoid multiple reports of the same issue, please confirm, that...

• I searched for similar reported limitations and didn't find any.

[michaelweinold]

Thank you for reporting! This is related to:

• workaround for https not working with requests module #46
• Downloading Databases (eg. USEEIO)

[michaelweinold]

We will likely be able to fix this within a few weeks. All Brightway functions that use the requests package will need to be changed.