use presence of TOXPYTHON env var to determine if running in GitHub Actions

Author: softwareengineerprogrammer

tests/geophires_x_tests/test_economics_sam.py

@@ -388,7 +388,7 @@ def test_unsupported_econ_params_ignored_with_warning(self):
         with self.assertLogs(level='INFO') as logs:
             gtr_provided_result = self._get_result({'Gross Revenue Tax Rate': 0.5})
 
-        is_github_actions = 'CI' in os.environ
+        is_github_actions = 'CI' in os.environ or 'TOXPYTHON' in os.environ
         try:
             self.assertHasLogRecordWithMessage(
                 logs,