Blog

Learn Python signal to handle SIGTERM and SIGINT, stop services, use timers and wakeup file descriptors, and avoid handler deadlocks.

Learn Python errno to interpret system codes, handle OSError, files, networks, retries, and native calls portably.

Learn Python ctypes to load C libraries, define types and pointers, manage memory, callbacks, ABI, and native errors safely.

Learn Python expat for low-level XML parsing, handlers, namespaces, diagnostics, and protections against amplification and denial of service.

Learn Python ElementInclude to use XInclude with safe loaders, base URLs, maximum depth, and blocked external paths.

Learn Python xmlreader to configure SAX parsers, InputSource, incremental parsing, attributes, locators, and safer XML handling.

Learn Python saxutils to escape XML, quote attributes, generate documents, build SAX filters, and avoid context mistakes.

Learn Python pulldom to process XML events, expand only selected subtrees, and reduce memory use with safer limits.