Add exclude

{{ cookiecutter.repo_name }}/pyproject.toml

@@ -46,7 +46,7 @@ dirty_template = "{tag}"
 [tool.setuptools.packages.find]
 where = ["src"]  # list of folders that contain the packages (["."] by default)
 include = ["*"]  # package names should match these glob patterns (["*"] by default)
-exclude = []  # exclude packages matching these glob patterns (empty by default)
+exclude = ["{{ cookiecutter.project_name }}.tests*"]  # exclude packages matching these glob patterns (empty by default)
 namespaces = false  # to disable scanning PEP 420 namespaces (true by default)
 
 [tool.black]