Fix license check for setuptools>=77 (pytorch#153581)

Fix license check for setuptools>=77 (pytorch#151158)

Fixes pytorch#151157

See issue for more information
Pull Request resolved: pytorch#151158
Approved by: https://github.com/malfet

(cherry picked from commit 5b16a07)

Co-authored-by: Yichen Yan <[email protected]>

Author: pytorchbot

test/test_license.py

@@ -45,7 +45,11 @@ def test_distinfo_license(self):
                 'Found too many "torch-*dist-info" directories '
                 f'in "{site_packages}, expected only one'
             )
-        with open(os.path.join(os.path.join(distinfo[0], "LICENSE"))) as fid:
+        # setuptools renamed *dist-info/LICENSE to *dist-info/licenses/LICENSE sicne 77.0
+        license_file = os.path.join(distinfo[0], "licenses", "LICENSE")
+        if not os.path.exists(license_file):
+            license_file = os.path.join(distinfo[0], "LICENSE")
+        with open(license_file) as fid:
             txt = fid.read()
             self.assertTrue(starting_txt in txt)