stream-inflate 0.0.10

Uncompress DEFLATE streams in pure Python

stream-inflate

Uncompress Deflate and Deflate64 streams in pure Python.

Installation

pip install stream-inflate

Usage

To uncompress Deflate, use the stream_inflate function.

from stream_inflate import stream_inflate
import httpx

def compressed_chunks():
    # Iterable that yields the bytes of a DEFLATE-compressed stream
    with httpx.stream('GET', 'https://www.example.com/my.txt') as r:
        yield from r.iter_raw(chunk_size=65536)

for uncompressed_chunk in stream_inflate(compressed_chunks())[0]:
    print(uncompressed_chunk)

To uncompress Deflate64, use the stream_inflate64 function.

for uncompressed_chunk in stream_inflate64(compressed_chunks())[0]:
    print(uncompressed_chunk)

The following pattern can be used to find how many bytes of the last data chunk have not been consumed by the decompression.

uncompressed_chunks, num_bytes_unconsumed = stream_inflate(compressed_chunks())
for uncompressed_chunk in uncompressed_chunks:
    print(uncompressed_chunk)

print(num_bytes_unconsumed())

This useful when there may be other data after the compressed part, such as in ZIP files.