union with builtin variant name bug

changelog/@unreleased/pr-746.v2.yml

@@ -0,0 +1,5 @@
+type: fix
+fix:
+  description: union with builtin variant name bug
+  links:
+  - https://github.com/palantir/conjure-python/pull/746

conjure-python-core/src/main/java/com/palantir/conjure/python/processors/PythonIdentifierSanitizer.java

@@ -37,6 +37,7 @@ public final class PythonIdentifierSanitizer {
             "except",
             "exec",
             "finally",
+            "float",
             "for",
             "from",
             "global",

conjure-python-core/src/test/resources/types/example-types.yml

@@ -172,3 +172,9 @@ types:
         alias: RecursiveObjectAlias
       CollectionAliasExample:
         alias: map<StringAliasExample, RecursiveObjectAlias>
+      UnionWithBuiltinVariantName:
+        union:
+          # the name of this variant is 'float' which conflicts with the python type 'float'
+          float: double
+          # the python type for this field is 'float' which conflicts with the variant name above
+          double: double