py3.4/3.5 compatible type annotations

Author: LinuxMercedes

assigner/backends/base.py

@@ -154,7 +154,7 @@ class BackendBase:
     """
     Common abstract base backend for all assigner backends (gitlab or mock).
     """
-    repo: RepoBase = RepoBase
-    template_repo: TemplateRepoBase = TemplateRepoBase
-    student_repo: StudentRepoBase = StudentRepoBase
+    repo = RepoBase # type: RepoBase
+    template_repo = TemplateRepoBase # type: TemplateRepoBase
+    student_repo = StudentRepoBase # type: StudentRepoBase
     access = None

assigner/backends/gitlab.py

@@ -469,7 +469,7 @@ class GitlabBackend(BackendBase):
     """
     Common abstract base backend for all assigner backends (gitlab or mock).
     """
-    repo: RepoBase = GitlabRepo
-    template_repo: TemplateRepoBase = GitlabTemplateRepo
-    student_repo: StudentRepoBase = GitlabStudentRepo
+    repo = GitlabRepo # type: RepoBase
+    template_repo = GitlabTemplateRepo # type: TemplateRepoBase
+    student_repo = GitlabStudentRepo # type: StudentRepoBase
     access = Access

assigner/backends/mock.py

@@ -265,6 +265,6 @@ class MockBackend(BackendBase):
     """
     Common abstract base backend for all assigner backends (gitlab or mock).
     """
-    repo: RepoBase = MockRepo
-    template_repo: TemplateRepoBase = MockTemplateRepo
-    student_repo: StudentRepoBase = MockStudentRepo
+    repo = MockRepo # type: RepoBase
+    template_repo = MockTemplateRepo # type: TemplateRepoBase
+    student_repo = MockStudentRepo # type: StudentRepoBase