pyupgrade fixes

tests/test_conda.py

@@ -59,7 +59,7 @@ def test_ensure_pip_requirements(prefix):
     conda.ensure_conda_packages(prefix, ['pip'])
     with tempfile.NamedTemporaryFile() as f:
         # Sample small package to test
-        f.write('there'.encode())
+        f.write(b'there')
         f.flush()
         conda.ensure_pip_requirements(prefix, f.name)
     subprocess.check_call([

tests/test_installer.py

@@ -31,7 +31,7 @@ def test_ensure_admins(tljh_dir, admins, expected_config):
 	installer.ensure_admins(admins)
 
 	config_path = installer.CONFIG_FILE
-	with open(config_path, 'r') as f:
+	with open(config_path) as f:
 	    config = yaml.load(f)
 
 	# verify the list was flattened