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pythoncompressionzipshutil

Is there any method to compress ZIP files in python?

I have tried creating zip using zipfile and shutil. But, there was not visible file size compression in both the methods.

zipfile

with zipfile.ZipFile(f'{directory_name}.zip', 'w', zipfile.ZIP_DEFLATED) as zipf:

shutil

shutil.make_archive(directory_path, 'zip', directory_path)

Is there any way to ensure file compression as well?

Thanks.

Solution

  • You did

    with zipfile.ZipFile(f'{directory_name}.zip', 'w', zipfile.ZIP_DEFLATED) as zipf:

    zipfile.ZipFile docs state

    The compresslevel parameter controls the compression level to use when writing files to the archive. When using ZIP_STORED or ZIP_LZMA it has no effect. When using ZIP_DEFLATED integers 0 through 9 are accepted (see zlib for more information). When using ZIP_BZIP2 integers 1 through 9 are accepted (see bz2 for more information).

    Please try different compresslevel i.e.

    with zipfile.ZipFile(f'{directory_name}.zip', 'w', zipfile.ZIP_DEFLATED, compresslevel=0) as zipf:

    to

    with zipfile.ZipFile(f'{directory_name}.zip', 'w', zipfile.ZIP_DEFLATED, compresslevel=9) as zipf:

    then check if it does affect size of created file