Compression and archives in Python

gzip for a stream, zipfile and tarfile for a bundle.

import gzip
import tarfile
import zipfile
from pathlib import Path

Path("one.txt").write_text("hello\n")

with gzip.open("one.txt.gz", "wt") as f:
    f.write("hello\n")
print(gzip.open("one.txt.gz", "rt").read().strip())

with zipfile.ZipFile("bundle.zip", "w", zipfile.ZIP_DEFLATED) as zf:
    zf.write("one.txt")
print(zipfile.ZipFile("bundle.zip").namelist())

with tarfile.open("bundle.tar.gz", "w:gz") as tf:
    tf.add("one.txt")
print(tarfile.open("bundle.tar.gz").getnames())

How it works

1. gzip.open behaves like open with compression.
2. A ZipFile is a context manager, in read or write mode.
3. namelist and getnames show what is inside.

Keywords and builtins used here

• as
• print
• with

The run, in numbers

Lines

18

Characters to type

473

Tokens

154

Three-star pace

105 tpm

At the three-star pace of 105 tokens a minute, this run takes about 88 seconds.

Type this snippet

Step 3 of 4 in Files & archives, step 28 of 41 in Domain tools.

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