properly handle dictionary parameters via 'requests' client library

Author: rpullm168

CHANGELOG.md

@@ -17,7 +17,7 @@ Initial release to public.
 * Adds `--fix` recipe to correct non-canonical initial Python module comments
   post-text rendering due to misformatted templates inherited from the public
   `swagger-codegen` release.  This option causes well-formed initial comments
-  ti be proiduced, which consist of a U**x-compatible shell script shebang line
+  to be produced, which consist of a U**x-compatible shell script shebang line
   followed by a PEP 263-conformant character encoding specification
   (see `partial_header.mustache`).  All content currently generated presumes
   UTF-8 encoding, but alternate encodings may be supported in the future.

swagger_python_codegen/templates/rest.mustache

@@ -92,6 +92,14 @@ class RESTClientObject:  # pylint:disable=too-few-public-methods
         headers = headers or {}
         content_type = headers.setdefault('Content-Type', 'application/json')
 
+        for i, (k, v) in enumerate(query_params or []):
+            if isinstance(v, dict):
+                query_params[i] = (k, str(v))
+
+        for i, (k, v) in enumerate(post_params or []):
+            if isinstance(v, dict):
+                post_params[i] = (k, str(v))
+
         request_params = dict(params=query_params, headers=headers, stream=not _preload_content,
                               timeout=_request_timeout)
         if 'json' in content_type.lower():