import os, zipfile
from cStringIO import StringIO
def extract( filename, dir ):
zf = zipfile.ZipFile( filename )
namelist = zf.namelist()
dirlist = filter( lambda x: x.endswith( '/' ), namelist )
filelist = filter( lambda x: not x.endswith( '/' ), namelist )
# make base
pushd = os.getcwd()
if not os.path.isdir( dir ):
os.mkdir( dir )
os.chdir( dir )
# create directory structure
dirlist.sort()
for dirs in dirlist:
dirs = dirs.split( '/' )
prefix = ''
for dir in dirs:
dirname = os.path.join( prefix, dir )
if dir and not os.path.isdir( dirname ):
os.mkdir( dirname )
prefix = dirname
# extract files
for fn in filelist:
try:
out = open( fn, 'wb' )
buffer = StringIO( zf.read( fn ))
buflen = 2 ** 20
datum = buffer.read( buflen )
while datum:
out.write( datum )
datum = buffer.read( buflen )
out.close()
finally:
print fn
os.chdir( pushd )
