def protect_pytransform():

def assert_builtin(func):

type = ''.__class__.__class__

builtin_function = type(''.join)

if type(func) is not builtin_function:

raise RuntimeError('%s() is not a builtin' % func.__name__)

def check_obfuscated_script():

from sys import _getframe

CO_SIZES = 30, 39

CO_NAMES = set(['pytransform{suffix}', 'pyarmor',

'__name__', '__file__'])

co = _getframe(3).f_code

if not ((set(co.co_names) <= CO_NAMES)

and (len(co.co_code) in CO_SIZES)):

raise RuntimeError('unexpected obfuscated script')

def check_lib_pytransform():

from sys import platform

if platform == 'darwin':

return

{relative}import pytransform{suffix} as pytransform

filename = pytransform.__file__

with open(filename, 'rb') as f:

buf = bytearray(f.read())

value = sum(buf)

sys = __import__('sys')

if hasattr(sys, 'frozen') and sys.platform == 'darwin':

major, minor = sys.version_info[:2]

if '{suffix}':

value += 886 - sum(b'{suffix}') + (

1151 if major == 2 else (1161 + minor))

else:

value += 2069 if major == 2 else (2079 + minor)

if value not in {checklist}:

raise RuntimeError('unexpected %s' % filename)

assert_builtin(sum)

assert_builtin(open)

assert_builtin(len)

check_obfuscated_script()

check_lib_pytransform()

protect_pytransform()