Fix lint, adapter

Signed-off-by: Stefan Marr <git@stefan-marr.de>

rebench/interop/adapter.py

@@ -21,7 +21,6 @@
 import pkgutil
 import sys
 from os.path import join
-from importlib import import_module
 
 
 class GaugeAdapter(object):
@@ -122,12 +121,12 @@ def _get_adapter_case_insensitively_from_module(mod, adapter_name):
 def _load_directly(adapter_cfg, include_faulty, executor):
     name, path = next(iter(adapter_cfg.items()))
     full_path = join(executor.config_dir, path)
-    with open(full_path, 'r') as adapter_file:
+    with open(full_path, 'r') as adapter_file:  # pylint: disable=unspecified-encoding
         file_content = adapter_file.read()
 
     module_globals = {'__name__': name}
     code = compile(file_content, full_path, 'exec')
-    exec(code, module_globals)
+    exec(code, module_globals)  # pylint: disable=exec-used
 
     cls = _get_adapter_case_insensitively_from_module(module_globals, name)
     return cls(include_faulty, executor)