Question

I am using python zlib and I am doing the following:

1. Compress large strings in memory (zlib.compress)
2. Upload to S3
3. Download and read and decompress the data as string from S3 (zlib.decompress)

Everything is working fine but when I directly download files from S3 and try to open them with a standard zip program I get an error. I noticed that instead of PK, the begining of the file is:

xµ}ko$7’םחע¯¸?ְ)$“שo³¶w¯1k{`

I am flexible and dont mind switching from zlib to another package but it has to be pythonic (Heroku compatible)

Thanks!

Answer 1

zlib compresses a file; it does not create a ZIP archive. For that, see zipfile.