Merge pull request #5119 from microsoft/shem/fix_null_for_zero_error

remove falsy check for nulls in method parameters

CHANGELOG.md

@@ -11,7 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
-- Adds generation of default 'color.png`and`outline.png` files when generating plugins. [#4993](https://github.com/microsoft/kiota/issues/4993)
+- Adds generation of default `color.png` and `outline.png` files when generating plugins. [#4993](https://github.com/microsoft/kiota/issues/4993)
 
 ### Changed
 
@@ -23,6 +23,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Exclude the `x-openai-isConsequential` extension from cleanup. [#4962](https://github.com/microsoft/kiota/issues/4962)
 - Fixed file name and namespace sanitization when generating plugins. [#5019](https://github.com/microsoft/kiota/issues/5019)
 - Added TypeScript typecheck suppression to generated method prototype, where anused arguments can cause build fail in projects which use `noUnusedLocals: true` compiler option. [#5095](https://github.com/microsoft/kiota/issues/5095)
+- Fixed a bug where defensive programming would consider some default values as invalid in Python.
 
 ## [1.16.0] - 2024-07-05
 

src/Kiota.Builder/Writers/Python/CodeMethodWriter.cs

@@ -43,7 +43,7 @@ public override void WriteCodeElement(CodeMethod codeElement, LanguageWriter wri
             foreach (var parameter in codeElement.Parameters.Where(static x => !x.Optional).OrderBy(static x => x.Name))
             {
                 var parameterName = parameter.Name;
-                writer.StartBlock($"if not {parameterName}:");
+                writer.StartBlock($"if {parameterName} is None:");
                 writer.WriteLine($"raise TypeError(\"{parameterName} cannot be null.\")");
                 writer.DecreaseIndent();
             }

tests/Kiota.Builder.Tests/Writers/Python/CodeMethodWriterTests.cs

@@ -2086,7 +2086,7 @@ public void WritesNameMapperMethod()
         });
         writer.Write(method);
         var result = tw.ToString();
-        Assert.Contains("if not original_name:", result);
+        Assert.Contains("if original_name is None:", result);
         Assert.Contains("if original_name == \"select\":", result);
         Assert.Contains("return \"%24select\"", result);
         Assert.Contains("if original_name == \"expand\":", result);
@@ -2124,7 +2124,7 @@ public void WritesNameMapperMethodWithUnescapedProperties()
         });
         writer.Write(method);
         var result = tw.ToString();
-        Assert.Contains("if not original_name:", result);
+        Assert.Contains("if original_name is None:", result);
         Assert.Contains("if original_name == \"start_date_time\":", result);
         Assert.Contains("return \"startDateTime\"", result);
         Assert.Contains("return original_name", result);