def make_code_from_pyc(filename):
"""Get a code object from a .pyc file."""
try:
fpyc = open(filename, "rb")
except IOError:
raise NoCode("No file to run: '%s'" % filename)
with fpyc:
# First four bytes are a version-specific magic number. It has to
# match or we won't run the file.
magic = fpyc.read(4)
if magic != PYC_MAGIC_NUMBER:
raise NoCode("Bad magic number in .pyc file: {} != {}".format(
magic, PYC_MAGIC_NUMBER))
date_based = True
if env.PYBEHAVIOR.hashed_pyc_pep552:
flags = struct.unpack('<L', fpyc.read(4))[0]
hash_based = flags & 0x01
if hash_based:
fpyc.read(8) # Skip the hash.
date_based = False
if date_based:
# Skip the junk in the header that we don't need.
fpyc.read(4) # Skip the moddate.
if env.PYBEHAVIOR.size_in_pyc:
# 3.3 added another long to the header (size), skip it.
fpyc.read(4)
# The rest of the file is the code object we want.
code = marshal.load(fpyc)
return code
def make_code_from_pyc(filename):
"""Get a code object from a .pyc file."""
try:
fpyc = open(filename, "rb")
except IOError:
raise NoCode("No file to run: %r" % filename)
try:
# First four bytes are a version-specific magic number. It has to
# match or we won't run the file.
magic = fpyc.read(4)
if magic != imp.get_magic():
raise NoCode("Bad magic number in .pyc file")
# Skip the junk in the header that we don't need.
fpyc.read(4) # Skip the moddate.
if sys.version_info >= (3, 3):
# 3.3 added another long to the header (size), skip it.
fpyc.read(4)
# The rest of the file is the code object we want.
code = marshal.load(fpyc)
finally:
fpyc.close()
return code
def make_code_from_pyc(filename):
try:
fpyc = open(filename, 'rb')
except IOError:
raise NoCode('No file to run: %r' % filename)
try:
magic = fpyc.read(4)
if magic != imp.get_magic():
raise NoCode('Bad magic number in .pyc file')
fpyc.read(4)
if sys.version_info >= (3, 3):
fpyc.read(4)
code = marshal.load(fpyc)
finally:
fpyc.close()
return code