python调用7z解压apk包

这段代码通过shell调用7z对apk包进行解压缩

def run_shell(command, mayFreeze=False):
	def check_retcode(retcode, cmd):
		if 0 != retcode:
			print >> sys.stderr, 'err executing ' + cmd + ':', retcode
			sys.exit(retcode)

	def read_close(f):
		f.seek(0)
		d = f.read()
		f.close()
		return d
	
	#print >> sys.stderr, '-- Executing', command
	if mayFreeze:
		tempout, temperr = tempfile.TemporaryFile(), tempfile.TemporaryFile()#open(os.devnull, 'w')
		p = subprocess.Popen(command, stdout=tempout, stderr=temperr)
		p.wait()
		output, errout = read_close(tempout), read_close(temperr)
	else:
		p = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
		output = p.stdout.read()
		p.wait()
		errout = p.stderr.read()
		p.stdout.close()
		p.stderr.close()
	
	#check_retcode(p.returncode, command)
	return (output.strip(), errout.strip())

#z7 is the full path to 7z.exe
#at times you have to encode the command into GBK/UTF8
run_shell(u'{0} -y -o"{1}" {2} x "{3}"'.format(z7, tempdir, icon, apk))
shutil.copy(u'{0}/{1}'.format(tempdir, os.path.basename(icon)), dst_path)