Starlark Docs: Python Diffs: Strings aren't iterable
Per
This is commonly encountered e.g. when validating inputs against externally-imposed naming conventions, particularly since regexps aren't supported either.
Closes
@@ -132,6 +132,8 @@ not defined across value types. In short: `5 < 'foo'` will throw an error and
* Strings are represented with double-quotes (e.g. when you call
[repr](lib/globals.html#repr)).
+* Strings aren't iterable.
+
The following Python features are not supported:
* implicit string concatenation (use explicit `+` operator).
