api/rest: Let p{roject,eople,atches}_list return a generator

This has the advantage that with pagination the first entries are already
provided before later entries are queried from the server. Also if the
generator isn't walked through completely, only the needed queries are
actually executed.

All callers of these functions can cope with the returned object being a
generator now instead of a list as they just iterate once over it.

Author: ukleinek

pwclient/api.py

@@ -640,7 +640,7 @@ def project_list(self, search_str=None, max_count=0):
             )
 
         projects = self._list('projects')
-        return [self._project_to_dict(project) for project in projects]
+        return (self._project_to_dict(project) for project in projects)
 
     def project_get(self, project_id):
         project = self._detail('projects', project_id)
@@ -675,7 +675,7 @@ def person_list(self, search_str=None, max_count=0):
             )
 
         people = self._list('people')
-        return [self._person_to_dict(person) for person in people]
+        return (self._person_to_dict(person) for person in people)
 
     def person_get(self, person_id):
         person = self._detail('people', person_id)
@@ -767,7 +767,7 @@ def patch_list(
             filters['delegate'] = delegate
 
         patches = self._list('patches', params=filters)
-        return [self._patch_to_dict(patch) for patch in patches]
+        return (self._patch_to_dict(patch) for patch in patches)
 
     def patch_get(self, patch_id):
         patch = self._detail('patches', patch_id)