Working with Zip file in python(writing)

                     Working with Zip File in Python(Writing)

            

Module in Python to write zip file:   

                 The zipfile module can be used to manipulate ZIP archive files.Sometimes it is necessary to write 

                to a ZIP archive using data that did not come from an existing file. Rather than writing the data to 

                a file, then adding that file to the  ZIP archive, you can use the writestr() method to add a string 

                of bytes to the archive directly.

          Code:   

                           from zipfile_infolist import print_info

                           import zipfile

                           msg = 'This data did not exist in a file before being added to the ZIP file'

                           zf = zipfile.ZipFile('zipfile_writestr.zip', mode='w', compression=zipfile.ZIP_DEFLATED,) 

                          try:

                               zf.writestr('from_string.txt', msg)

                          finally:

                              zf.close()

                          print_info('zipfile_writestr.zip'

                          zf = zipfile.Zip File('zipfile_writestr.zip', 'r')

                          print zf.read('from_string.txt')

Output:      

                    $ python zipfile_writestr_zipinfo.py

                    from_string.txt

                    Comment:        Remarks go here

                    Modified:       2019-11-14 11:44:14

                    System:         0 (10 = Windows)

                    ZIP version:    20

                    Compressed:     62 bytes

                    Uncompressed:   64 bytes           

A directory with such a format:

                          # importing required modules

from zipfile import ZipFile

import os

  

def get_all_file_paths(directory):

  

     # initializing empty file paths list

     file_paths = []

  

     # crawling through directory and subdirectories

     for root, directories, files in os.walk(directory):

         for filename in files:

             # join the two strings in order to form the full filepath.

             filepath = os.path.join(root, filename)

             file_paths.append(filepath)

  

     # returning all file paths

     return file_paths        

  

def main():

     # path to folder which needs to be zipped

     directory = './python_files'

  

     # calling function to get all file paths in the directory

     file_paths = get_all_file_paths(directory)

  

     # printing the list of all files to be zipped

     print('Following files will be zipped:')

     for file_name in file_paths:

         print(file_name)

  

     # writing files to a zipfile

     with ZipFile('my_python_files.zip','w') as zip:

         # writing each file one by one

         for file in file_paths:

             zip.write(file)

  

     print('All files zipped successfully!')        

  

  

if __name__ == "__main__":

     main()

Output:

Following files will be zipped:

./python_files\python_basic.pdf

./python_files\python_wiki.text

./python_files\logos\python_logos.jpg

All files zipped successfully!

Explanation:

                          def get_all_file_paths(directory):

                                   file_paths = []

                                   for root, directories, files in os.walk(directory):

                                           for filename in files:

                                               filepath = os.path.join(root, filename)

                                               file_paths.append(filepath)

                                  return file_paths