Zipstream-NG

Zipstream-NG is a modern and easy-to-use Python library for generating streamable ZIP files on the fly. It allows packaging and streaming many files and folders without requiring temporary files or excessive memory, making it ideal for web backends. It also supports calculating the final ZIP file size before generation, enabling accurate Content-Length headers for HTTP responses. The current version is 1.9.0, and it maintains an active release cadence.