set legacy config option in Python sample configs

Author: ctreatma

bin/configs/python-aiohttp.yaml

@@ -8,6 +8,7 @@ additionalProperties:
   mapNumberTo: float
   poetry1: true
   disallowAdditionalPropertiesIfNotPresent: true
+  legacyDefaultDisallowAdditionalPropertiesIfNotPresentBehavior: true
 nameMappings:
   _type: underscore_type
   type_: type_with_underscore

bin/configs/python-echo-api.yaml

@@ -5,3 +5,4 @@ templateDir: modules/openapi-generator/src/main/resources/python
 additionalProperties:
   hideGenerationTimestamp: "true"
   disallowAdditionalPropertiesIfNotPresent: true
+  legacyDefaultDisallowAdditionalPropertiesIfNotPresentBehavior: true

bin/configs/python-fastapi.yaml

@@ -6,3 +6,4 @@ sourceFolder: "src"
 additionalProperties:
   hideGenerationTimestamp: "true"
   disallowAdditionalPropertiesIfNotPresent: true
+  legacyDefaultDisallowAdditionalPropertiesIfNotPresentBehavior: true

bin/configs/python-pydantic-v1-aiohttp.yaml

@@ -7,3 +7,4 @@ additionalProperties:
   packageName: petstore_api
   mapNumberTo: float
   disallowAdditionalPropertiesIfNotPresent: true
+  legacyDefaultDisallowAdditionalPropertiesIfNotPresentBehavior: true

bin/configs/python-pydantic-v1-echo-api.yaml

@@ -5,3 +5,4 @@ templateDir: modules/openapi-generator/src/main/resources/python-pydantic-v1
 additionalProperties:
   hideGenerationTimestamp: "true"
   disallowAdditionalPropertiesIfNotPresent: true
+  legacyDefaultDisallowAdditionalPropertiesIfNotPresentBehavior: true

modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/AbstractPythonPydanticV1Codegen.java

@@ -49,6 +49,8 @@ public abstract class AbstractPythonPydanticV1Codegen extends DefaultCodegen imp
     protected String packageName = "openapi_client";
     @Setter protected String packageVersion = "1.0.0";
     @Setter protected String projectName; // for setup.py, e.g. petstore-api
+    @Setter
+    protected boolean legacyDisallowAdditionalPropertiesDefaultBehavior = false;
     protected boolean hasModelsToImport = Boolean.FALSE;
     protected String mapNumberTo = "Union[StrictFloat, StrictInt]";
     protected Map<Character, String> regexModifiers;
@@ -138,6 +140,10 @@ public AbstractPythonPydanticV1Codegen() {
     public void processOpts() {
         super.processOpts();
 
+        if (additionalProperties.containsKey(CodegenConstants.LEGACY_DEFAULT_DISALLOW_ADDITIONAL_PROPERTIES_IF_NOT_PRESENT_BEHAVIOR)) {
+            setLegacyDisallowAdditionalPropertiesDefaultBehavior(Boolean.parseBoolean(additionalProperties.get(CodegenConstants.LEGACY_DEFAULT_DISALLOW_ADDITIONAL_PROPERTIES_IF_NOT_PRESENT_BEHAVIOR).toString()));
+        }
+
         if (StringUtils.isEmpty(System.getenv("PYTHON_POST_PROCESS_FILE"))) {
             LOGGER.info("Environment variable PYTHON_POST_PROCESS_FILE not defined so the Python code may not be properly formatted. To define it, try 'export PYTHON_POST_PROCESS_FILE=\"/usr/local/bin/yapf -i\"' (Linux/Mac)");
             LOGGER.info("NOTE: To enable file post-processing, 'enablePostProcessFile' must be set to `true` (--enable-post-process-file for CLI).");
@@ -983,6 +989,10 @@ private ModelsMap postProcessModelsMap(ModelsMap objs) {
             model.getVendorExtensions().putIfAbsent("x-py-datetime-imports", datetimeImports);
             model.getVendorExtensions().putIfAbsent("x-py-readonly", readOnlyFields);
 
+            if (legacyDisallowAdditionalPropertiesDefaultBehavior) {
+                model.vendorExtensions.putIfAbsent("x-py-legacy-disallow-additional-properties-default-behavior", true);
+            }
+
             // remove the items of postponedModelImports in modelImports to avoid circular imports error
             if (!modelImports.isEmpty() && !postponedModelImports.isEmpty()) {
                 modelImports.removeAll(postponedModelImports);