Reduce indentation
@@ -494,7 +494,9 @@ class InstallRequirement(object):
self.use_pep517 = (pyproject_toml_data is not None)
- if self.use_pep517:
+ if not self.use_pep517:
+ return
+
requires, backend, check = pyproject_toml_data
self.requirements_to_check = check
self.pyproject_requires = requires
