fix flake8 errors

Related: https://pagure.io/koji/issue/3480

hub/kojihub.py

@@ -106,19 +106,19 @@ def convert_value(value, cast=None, message=None,
     """
     if value is None:
         if not none_allowed:
-            raise(exc_type(message or f"Invalid type, expected type {cast}"))
+            raise exc_type(message or f"Invalid type, expected type {cast}")
         else:
             return value
     if check_only:
         if not isinstance(value, cast):
-            raise(exc_type(message or f"Invalid type for value '{value}': {type(value)}, "
-                                      f"expected type {cast}"))
+            raise exc_type(message or f"Invalid type for value '{value}': {type(value)}, "
+                                      f"expected type {cast}")
     else:
         try:
             value = cast(value)
         except (ValueError, TypeError):
-            raise(exc_type(message or f"Invalid type for value '{value}': {type(value)}, "
-                                      f"expected type {cast}"))
+            raise exc_type(message or f"Invalid type for value '{value}': {type(value)}, "
+                                      f"expected type {cast}")
     return value
 
 
@@ -6957,7 +6957,7 @@ class CG_Importer(object):
 
     def match_kojifile(self, comp):
         """Look up the file by archive id and sanity check the other data"""
-        assert(comp['type'] == 'kojifile')
+        assert (comp['type'] == 'kojifile')
         archive = get_archive(comp['archive_id'], strict=True)
         build = get_build(archive['build_id'], strict=True)
 
@@ -10044,7 +10044,7 @@ class BuildTagInheritsFromTest(koji.policy.BaseSimpleTest):
 
     def run(self, data):
         test_name, *args = self.str.split()
-        assert(test_name == self.name)
+        assert (test_name == self.name)
         for tinfo in policy_get_build_tags(data, taginfo=True):
             if tinfo is None:
                 # content generator buildroots might not have tag info

koji/util.py

@@ -659,8 +659,8 @@ def check_sigmd5(filename):
             data = f.read(16)
             tag, data_type, offset, count = struct.unpack('!IIII', data)
             if tag == 1004:  # SIGMD5
-                assert(data_type == 7)  # binary data
-                assert(count == 16)     # 16 bytes of md5
+                assert (data_type == 7)  # binary data
+                assert (count == 16)     # 16 bytes of md5
                 break
         # seek to location of md5
         f.seek(o + 8 + indexcount * 16 + offset)

setup.py

@@ -26,7 +26,7 @@ def get_install_requires():
 def get_version():
     cwd = os.path.dirname(__file__)
     exec(open(os.path.join(cwd, 'koji/_version.py'), 'rt').read())
-    return(locals()['__version__'])
+    return locals()['__version__']
 
 
 def get_long_description():