Don't use requests ok code (Qiskit#94)

* fix catching exception

* update provider version

.travis.yml

@@ -12,7 +12,6 @@ stage_generic: &stage_linux
   install:
     - pip install -U -r requirements.txt
     - pip install -U -r requirements-dev.txt
-    - pip install -I git+https://github.com/Qiskit/qiskit-ibmq-provider.git@runtime-release-q4
 
 ###############################################################################
 # Stage-related definitions

requirements-dev.txt

@@ -1,5 +1,5 @@
 qiskit-optimization
-qiskit-ibmq-provider
+qiskit-ibmq-provider>=0.18
 qiskit-nature
 pyyaml
 requests

tools/cloud_rt.py

@@ -86,8 +86,11 @@ def _get_url_token(self):
     def _make_request(self, url, func, **kwargs):
         headers = self._header.copy()
         headers.update(kwargs.pop("headers", {}))
-        response = func(url, headers=headers, **kwargs)
-        if response.status_code != requests.codes.ok:
-            LOG.error("Bad request: %s", response.text)
-        response.raise_for_status()
+        try:
+            response = func(url, headers=headers, **kwargs)
+            response.raise_for_status()
+        except requests.RequestException as ex:
+            if ex.response is not None:
+                LOG.error("%s: %s", str(ex), ex.response.text)
+            raise
         return response

tools/legacy_rt.py

@@ -29,8 +29,11 @@ def _get_url_token(self):
     def _make_request(self, url, func, **kwargs):
         headers = self._header.copy()
         headers.update(kwargs.pop("headers", {}))
-        response = func(url, headers=headers, **kwargs)
-        if response.status_code != requests.codes.ok:
-            LOG.error("Bad request: %s", response.text)
-        response.raise_for_status()
+        try:
+            response = func(url, headers=headers, **kwargs)
+            response.raise_for_status()
+        except requests.RequestException as ex:
+            if ex.response is not None:
+                LOG.error("%s: %s", str(ex), ex.response.text)
+            raise
         return response