diff --git a/README.md b/README.md
new file mode 100644
index 0000000..00869cd
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# Python + Rust Playground
+
+Playing with Pyo3 and Maturin to build Python libraries with Rust
\ No newline at end of file
diff --git a/src/lib.rs b/src/lib.rs
index 62c6a0b..7db7aaa 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,7 @@
 use pyo3::prelude::*;
 
+mod types;
+
 /// Formats the sum of two numbers as string.
 #[pyfunction]
 fn sum_as_string(a: usize, b: usize) -> PyResult<String> {
@@ -17,9 +19,15 @@ fn register_child_module(py: Python<'_>, parent_module: &PyModule) -> PyResult<(
 /// the `lib.name` setting in the `Cargo.toml`, else Python will not be able to
 /// import the module.
 #[pymodule]
+#[pyo3(name = "py_rust_playground")] // python package name
 fn py_rust_playground(_py: Python, m: &PyModule) -> PyResult<()> {
     m.add_function(wrap_pyfunction!(sum_as_string, m)?)?;
 
+    m.add_class::<types::Integer>()?;
+    m.add_class::<types::Number>()?;
+    m.add_class::<types::HttpResponse>()?;
+    m.add_class::<types::MyEnum>()?;
+
     register_child_module(_py, m)?;
     Ok(())
 }
\ No newline at end of file
diff --git a/src/types.rs b/src/types.rs
new file mode 100644
index 0000000..bf5ccd4
--- /dev/null
+++ b/src/types.rs
@@ -0,0 +1,25 @@
+use pyo3::prelude::*;
+
+#[pyclass]
+pub struct Integer {
+    inner: i32,
+}
+
+// A "tuple" struct
+#[pyclass]
+pub struct Number(i32);
+
+// PyO3 supports custom discriminants in enums
+#[pyclass]
+pub enum HttpResponse {
+    Ok = 200,
+    NotFound = 404,
+    Teapot = 418,
+    // ...
+}
+
+#[pyclass]
+pub enum MyEnum {
+    Variant,
+    OtherVariant = 30, // PyO3 supports custom discriminants.
+}
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