Leandro Hirt

Learn Python TypeGuard to narrow types and validate collections, TypedDict, Protocol, and external data with runtime checks and static safety.

Learn Python typing.Self for fluent methods, classmethods, builders, clones, Protocol, context managers, generics, and subclass-preserving returns.

Learn Python ExceptionGroup for multiple errors, except*, nested groups, TaskGroup, filtering, logging, API compatibility, and batch validation.

Learn Python Path.walk to traverse directories, prune folders, handle errors and symlinks, calculate sizes, delete safely, and support older versions.

Learn Python asyncio.timeout for deadlines, timeout_at, rescheduling, TaskGroup, cleanup, retries, shielding, and safe asynchronous cancellation.

Learn Python TaskGroup for structured concurrency, task results, cancellation, ExceptionGroup, timeouts, nested groups, and bounded async work.

Learn Python MappingProxyType to expose read-only dictionaries, create dynamic views and snapshots, preserve invariants, and avoid unnecessary copies.

Learn Python Literal to restrict exact values, create overloads, discriminate TypedDict variants, use match/case, and improve typed APIs.