import zipfile
import glob, os
 
# open the zip file for writing, and write stuff to it
 
file = zipfile.ZipFile("test.zip", "w")
 
for name in glob.glob("samples/*"):
    file.write(name, os.path.basename(name), zipfile.ZIP_DEFLATED)
 
file.close()
 
# open the file again, to see what's in it
 
file = zipfile.ZipFile("test.zip", "r")
for info in file.infolist():
    print info.filename, info.date_time, info.file_size, info.compress_size

# exploring Python file compression/decompression module bz2
# .bz2 files can be decompressed with WinRAR utility
# uncompressed file 'longtext.txt' has size of 48 kbytes
# level9 compressed 'longtext.bz2' has size of 1 kbyte
# zip compressed file 'longtext.zip' is of size 95 kbytes!
# tested with Python 3.1
 
import bz2
 
text = "use this to make one very long string right now\n"
# create 1000 lines of repeating text
text = text*1000
 
# create uncompressed text file
uc_fname = 'longtext.txt'
fout = open(uc_fname, 'w')
fout.write(text)
fout.close()
 
# create bz2 compressed file (can be used with WinRAR)
bz2_fname = 'longtext.bz2'
bzout = bz2.BZ2File(bz2_fname, 'w', compresslevel=9)
# Python3 requires text string to be encoded to bytearray
bzout.write(text.encode('utf8'))
bzout.close()
 
# read bz2 compressed file
bz2_fname = 'longtext.bz2'
bzin = bz2.BZ2File(bz2_fname, 'r', compresslevel=9)
# result of read() is of type string
text2 = bzin.read()
bzin.close()
 
# short test ...
print("Length of original text = %d" % len(text))
print("Length of recovered text = %d" % len(text2))
 
# the other way to compress ...
# create zipfile compressed file
# in this case the compressed file is larger than the original!
import zipfile as zf
z_fname = 'longtext.zip'
zout = zf.ZipFile(z_fname, 'w', compression=zf.ZIP_DEFLATED)
zout.write(uc_fname, text)
zout.close()