Fix some python bugs left before

tools/build_apps.py

@@ -112,7 +112,7 @@ def main():
         try:
             build_system_class.build(build_info)
         except BuildError as e:
-            logging.error(e.message)
+            logging.error(str(e))
             if args.keep_going:
                 failed_builds.append(build_info)
             else:

tools/ci/python_packages/tiny_test_fw/Utility/CIAssignTest.py

@@ -53,7 +53,6 @@ from . import (CaseConfig, SearchCases, GitlabCIJob, console_log)
 
 
 class Group(object):
-
     MAX_EXECUTION_TIME = 30
     MAX_CASE = 15
     SORT_KEYS = ["env_tag"]

tools/ci/python_packages/ttfw_idf/CIAssignUnitTest.py

@@ -46,7 +46,7 @@ class Group(CIAssignTest.Group):
             for key in self.filters:
                 if self._get_case_attr(case, key) != self.filters[key]:
                     if key == "tags":
-                        if self._get_case_attr(case, key).issubset(self.filters[key]):
+                        if set(self._get_case_attr(case, key)).issubset(set(self.filters[key])):
                             continue
                     break
             else: