标签：name zip python self contents file memory 数据压缩

# !user/bin/env python3
# -*-coding : utf-8 -*-

import zipfile
from io import BytesIO
import os


class InMemoryZIP(object):
    def __init__(self):
        # create the in-memory file-like object
        self.in_memory_zip = BytesIO()

    def append(self, filename_in_zip, file_contents):
        """ Appends a file with name filename_in_zip \
        and contents of file_contents to the in-memory zip.
        """
        # create a handle to the in-memory zip in append mode\
        if not isinstance(file_contents, bytes):
            file_contents = bytes(str(file_contents), encoding='utf-8')

        zf = zipfile.ZipFile(self.in_memory_zip, 'a',
                             zipfile.ZIP_DEFLATED, False)

        # write the file to the in-memory zip
        zf.writestr(filename_in_zip, file_contents)

        # mark the files as having been created on Windows
        # so that Unix permissions are not inferred as 0000
        for zfile in zf.filelist:
            zfile.create_system = 0
        return self

    def appendfile(self, file_path, file_name=None):
        """ Read a file with path file_path \
        and append to in-memory zip with name file_name.
        """
        if file_name is None:
            file_name = os.path.split(file_path)[1]

        f = open(file_path, 'rb')
        file_contents = f.read()
        self.append(file_name, file_contents)
        f.close()
        return self

    def read(self):
        """ Returns a string with the contents of the in-memory zip.
        """
        self.in_memory_zip.seek(0)
        return self.in_memory_zip.read()

    def writetofile(self, filename):
        """
        Write the in-memory zip to a file
        """
        f = open(filename, 'wb')
        f.write(self.read())
        f.close()


if __name__ == '__main__':

     contens = 'xxxxxxxxx'  # 内存数据
     imz = InMemoryZIP()
     imz.append('test.txt', contens)
     imz.writetofile('test.zip')
   

标签：name,zip,python,self,contents,file,memory,数据压缩
来源： https://blog.csdn.net/m0_37845900/article/details/120346921

本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享；
2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关；
3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关；
4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除；
5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。