How can I extract multiple .zip files?

I’m trying to extract multiple files from some .zip archives. My code is:

import os
import zipfile

os.chdir('/home/marlon/Shift One/Projeto Philips/Consolidação de Arquivos')

for f in os.listdir("/home/marlon/Shift One/Projeto Philips/Consolidação de Arquivos"):
    if f.endswith(".zip"):
        z = zipfile.ZipFile(f, 'r')
        z.extractall(path = '/home/marlon/Shift One/Projeto Philips/Consolidação de Arquivos/dados')
        z.close()

However, it only extracts the files inside the first archive. I’m using Python 3.6. What is wrong?

Answer

I thought this scenario might be a serious candidate …

What happens is that for each .zip file, all its members are extracted, but they overwrite the ones extracted from the previous file (well, except the 1^st). So, at the end, you end up with the files from the last archive that was enumerated.
To get past this issue, you should unzip each .zip file members in a separate directory (the .zip file name).

Below is an example (I also simplified / cleaned your code a bit).

code00.py:

#!/usr/bin/env python3

import os
import glob
import zipfile


dir_name_base = r"/home/marlon/Shift One/Projeto Philips/Consolidação de Arquivos"

for arc_name in glob.iglob(os.path.join(dir_name_base, "*.zip")):
    arc_dir_name = os.path.splitext(os.path.basename(arc_name))[0]
    zf = zipfile.ZipFile(arc_name)
    zf.extractall(path=os.path.join(dir_name_base, "dados", arc_dir_name))
    zf.close()  # Close file after extraction is completed