CODEWITHSUNDEEP
pythoncompression
tastyminerals
tastyminerals

Reputation: 6538

How to compress a processed text file in Python?

I have a text file which I constantly append data to. When processing is done I need to gzip the file. I tried several options like shutil.make_archive, tarfile, gzip but could not eventually do it. Is there no simple way to compress a file without actually writing to it?

Let's say I have mydata.txt file and I want it to be gzipped and saved as mydata.txt.gz.

Upvotes: 0

Views: 1267

Answers (2)

unwind
unwind

Reputation: 399881

I don't see the problem. You should be able to use e.g. the gzip module just fine, something like this:

inf = open("mydata.txt", "rb")
outf = gzip.open("file.txt.gz", "wb")
outf.write(inf.read())
outf.close()
inf.close()

There's no problem with the file being overwritten, the name given to gzip.open() is completely independent of the name given to plain open().

Upvotes: 3

Monkeybrain
Monkeybrain

Reputation: 840

If you want to compress a file without writing to it, you could run a shell command such as gzip using the Python libraries subprocess or popen or os.system.

Upvotes: 0

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