python: Flip `--incompatible_python_disable_py2` to `true`
This changes the default to rejecting Python 2 values. For more
information, see
Fixes
RELNOTES[INC]: --incompatible_python_disable_py2 is flipped to true. See for details.
@@ -121,7 +121,7 @@ public class PythonOptions extends FragmentOptions {
@Option(
name = "incompatible_python_disable_py2",
- defaultValue = "false",
+ defaultValue = "true",
documentationCategory = OptionDocumentationCategory.INPUT_STRICTNESS,
effectTags = {OptionEffectTag.LOADING_AND_ANALYSIS},
metadataTags = {OptionMetadataTag.INCOMPATIBLE_CHANGE},
