Add a comment

pysr/julia_registry_helper.py

@@ -19,6 +19,13 @@ def backup_juliaregistrypref():
         # If the user has not set the JULIA_PKG_SERVER_REGISTRY_PREFERENCE environment variable, then
         # we set it temporarily, and unset it when we are done.
         old_value = None
+
+        # We will set the JULIA_PKG_SERVER_REGISTRY_PREFERENCE to `eager`.
+        # Note: in upstream Julia/Pkg, the default value is `conservative`.
+        # Therefore, by setting it to `eager`, we are overriding the default.
+        # Because we are deviating from the default behavior that would normally be expected in Julia,
+        # I think that it's a good idea to print an informational message, so that the user is aware
+        # of the change being made.
         info_msg = """\
             INFO: Attempting to use the `eager` registry flavor of the Julia General registry from the Julia Pkg server.
             If any errors are encountered, try setting the `{name}` environment variable to `conservative`.