如何使用 python 减小文件的大小？

Question

我想将一个相当大的文件（大约 350mb）的大小减小到一个小得多的文件，例如（60mb），我需要减小一个文本文件的大小，任何减小文件大小的方法都可以，过程必须是可逆的......请帮助我

Answer 1

此代码可能会对您有所帮助..

import tarfile
from tqdm import tqdm

压缩

def compress(tar_file, members):
    """
    Adds files (`members`) to a tar_file and compress it
    """
    # open file for gzip compressed writing
    tar = tarfile.open(tar_file, mode="w:gz")
    # with progress bar
    # set the progress bar
    progress = tqdm(members)
    for member in progress:
        # add file/folder/link to the tar file (compress)
        tar.add(member)
        # set the progress description of the progress bar
        progress.set_description(f"Compressing {member}")
    # close the file
    tar.close()

解压

def decompress(tar_file, path, members=None):
    """
    Extracts `tar_file` and puts the `members` to `path`.
    If members is None, all members on `tar_file` will be extracted.
    """
    tar = tarfile.open(tar_file, mode="r:gz")
    if members is None:
        members = tar.getmembers()
    # with progress bar
    # set the progress bar
    progress = tqdm(members)
    for member in progress:
        tar.extract(member, path=path)
        # set the progress description of the progress bar
        progress.set_description(f"Extracting {member.name}")
    # or use this
    # tar.extractall(members=members, path=path)
    # close the file
    tar.close()