def handle_status(status: Literal["active", "inactive", "pending"]) -> str: match status: case "active": return "User is active" case "inactive": return "User is inactive" case "pending": return "User pending approval" case _: assert_never(status) # Type checker verifies all cases handled
def ssl_improvements(): # Default minimum TLS version is now 1.3 context = ssl.create_default_context() print(f"Minimum TLS version: context.minimum_version") print(f"Maximum TLS version: context.maximum_version") python 3.13 changes
def hash_demo(): data = b"Sensitive information" def handle_status(status: Literal["active"
: In its current state, the performance gains are modest (often roughly 1.3x–2.8x depending on the workload) and come with a 20–30% memory overhead. Developer Experience: The Best Parts python 3.13 changes
Python 3.13 includes a new JIT compiler (experimental) and optimized internals.
# New hash algorithms with better security blake3_hash = hashlib.blake2b(data, digest_size=32).hexdigest() print(f"BLAKE2b: blake3_hash[:16]...")