Add example of chaining exceptions

2024/tuesday_tips/custom_exceptions/exception_chaining.py

@@ -0,0 +1,17 @@
+def convert_to_integer(text: str) -> int:
+    try:
+        return int(text)
+    except ValueError as e:
+        raise TypeError("Conversion to integer failed") from e
+
+
+def main() -> None:
+    try:
+        print(convert_to_integer("abc"))
+    except Exception as e:
+        print(f"An error occurred: {e}")
+        print(f"Cause of the error: {e.__cause__}")
+
+
+if __name__ == "__main__":
+    main()