--- a/src/build/env.py	2021-09-16 16:20:01.000000000 -0500
+++ b/src/build/env.py	2022-01-23 15:08:26.000000000 -0600
@@ -254,6 +254,7 @@
     """
     import venv
 
+    os.environ.pop('PYTHONPATH', None)
     venv.EnvBuilder(with_pip=True, symlinks=_fs_supports_symlink()).create(path)
     executable, script_dir, purelib = _find_executable_and_scripts(path)