Unzipping part of a .gz file using python

Question

So here\'s the problem. I have sample.gz file which is roughly 60KB in size. I want to decompress the first 2000 bytes of this file. I am running into CRC check failed error

Answer 1

I can't see any possible reason why you would want to decompress the first 2000 compressed bytes. Depending on the data, this may uncompress to any number of output bytes.

Surely you want to uncompress the file, and stop when you have uncompressed as much of the file as you need, something like:

f = gzip.GzipFile(fileobj=open('postcode-code.tar.gz', 'rb'))
data = f.read(4000)
print data

AFAIK, this won't cause the whole file to be read. It will only read as much as is necessary to get the first 4000 bytes.