zipstream-new
Zipfile generator that takes input files as well as streams
Decision gist · record as of 2026-08-14
Yes, if you need streaming zip generation and can accept the maintenance risk. The package is stable and has no known vulnerabilities, but it is abandoned and will not receive updates. Use it only if the core streaming functionality meets your needs and you are comfortable maintaining a fork if issues arise. The GPLv3 license is a hard blocker for proprietary applications.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Installation is straightforward with no runtime dependencies.
- However, the project is abandoned—last commit was 2023-04-25 and no releases since 2020-09-14.
- Maintenance has stalled for over 2 years, so expect no bug fixes or updates.
License · maintenance · safety
copyleft license (copyleft) — Licensed under GPLv3 (copyleft). Any application that distributes this code or a derivative must also be open source under a compatible license. This is a significant constraint for proprietary software.
last release 2020-09-14 (2160 days) · last repo commit 2023-04-25 · 44 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 247,456 downloads/mo, #8,691 on PyPI
Alternatives
Verify before relying
pip install zipstream-new
import zipstream
z = zipstream.ZipFile()
z.write('/path/to/file')
with open('archive.zip', 'wb') as f:
for chunk in z:
f.write(chunk)- Whether the package works reliably with current Python versions (3.10+) given its abandonment status.
- Compatibility with modern web frameworks beyond the Flask/Django examples shown.
- Whether zlib compression (ZIP_DEFLATED) is available and functional in all deployment environments.
What it is and what it does
zipstream-new is a zip archive generator that produces output as an iterator of byte chunks rather than a single file object. This design allows you to stream large archives directly to clients (e.g., via HTTP) without materializing the entire zip in memory or on disk first. It wraps Python's standard zipfile module and supports both file-system paths and byte iterables as input, making it useful for web applications that need to serve dynamically generated archives.
The package works by yielding chunks as you iterate over the ZipFile object, which you can then send directly to a response stream. It supports optional zlib compression and allows mixing filesystem files with streamed content in a single archive. However, the project has been abandoned since 2020, with no updates or maintenance for over 2 years.
Use it for
- Stream a large collection of files as a zip download from a Flask or Django web app without buffering the entire archive.
- Generate a zip archive from data that arrives as a byte stream or generator, avoiding disk writes.
- Serve compressed archives on-demand in resource-constrained environments where memory is limited.
- Combine filesystem files and dynamically generated content into a single streamed zip archive.
- Implement partial flushing of zip data during generation to begin sending chunks to the client before all files are processed.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need streaming zip generation and can accept the maintenance risk.
The package is stable and has no known vulnerabilities, but it is abandoned and will not receive updates. Use it only if the core streaming functionality meets your needs and you are comfortable maintaining a fork if issues arise. The GPLv3 license is a hard blocker for proprietary applications.
Install
zipstream-new on PyPI
Before you install
Installation is straightforward with no runtime dependencies. However, the project is abandoned—last commit was 2023-04-25 and no releases since 2020-09-14. Maintenance has stalled for over 2 years, so expect no bug fixes or updates.
License in practice
Licensed under GPLv3 (copyleft). Any application that distributes this code or a derivative must also be open source under a compatible license. This is a significant constraint for proprietary software.
Quickstart
pip install zipstream-new
import zipstream
z = zipstream.ZipFile()
z.write('/path/to/file')
with open('archive.zip', 'wb') as f:
for chunk in z:
f.write(chunk)Verify before relying
- Whether the package works reliably with current Python versions (3.10+) given its abandonment status.
- Compatibility with modern web frameworks beyond the Flask/Django examples shown.
- Whether zlib compression (ZIP_DEFLATED) is available and functional in all deployment environments.
Package facts
| License | copyleft license copyleft |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Abandoned 2,160 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 247,456 / month, #8,691 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | License :: OSI Approved :: GNU General Public License v3 (GPLv3)Operating System :: OS IndependentProgramming Language :: PythonTopic :: System :: Archiving :: Compression |
Evidence: zipstream_new-1.1.8-py3-none-any.whl
Tags
Let your AI agent find packages like this
Example. Real query, live index.
You found this page by searching. An agent finds it by wishing: SkillFed indexes 14,416 PyPI packages by what they can do, searchable in plain language.
wish › “streaming zip file generator”
- zipstream-newGenerates zip archives as iterators of byte chunks, enabling…
- zipstreamGenerates zip archives as an iterator of byte chunks, enabling…
- stream-zipConstructs ZIP archives on-the-fly without storing the entire file in…
Give your agent the search over MCP, or paste the wish link into any chat.
More Compression packages
Provides Python bindings to the Brotli compression library, enabling lossless compression and decompression using a modern LZ77 variant with Huffman coding and context modeling.
Install it if you need Brotli compression in Python; the API is straightforward and the library is battle-tested.
Provides Zstandard compression support for Python versions before 3.14, backporting the standard library's zstd module along with zstd-enabled tarfile and zipfile modules.
Zopfli is a Python binding for Google's Zopfli compression library, providing higher-density compression for zlib and gzip formats than standard algorithms, with tunable iteration and block-splitting parameters.
Python binding for Google's Snappy compression library, providing fast compression and decompression of data via the cramjam backend.
However, dormant maintenance (715 days since last release) means security or compatibility issues may not be addressed quickly.
pyzipper replaces Python's standard zipfile module to read and write AES-encrypted zip archives, using the WinZip AES encryption specification.
Provides Python bindings to the Zstandard (zstd) compression library with an API similar to bz2, lzma, and zlib modules.
See also zipstream · zipstream-ng · stream-zip · iterable-io · stream-unzip · remotezip2 · stream-inflate · tzst · remotezip · zip-files