I have a bytes string,
str = 'string ends with null\x00\x11u\x1ai\t'
and I expect that str should terminate after the word null, because a NULL \x00 follows immediately, however when I print str,
>>> print('string ends with null\x00\x11u\x1ai\t')
string ends with nullui
str doesn't end as I expected, how to make it right?
>>> str[:str.find('\0')]
'string ends with null'
Python strings are not NUL-terminated like C strings. Btw., calling a string str is a bad idea as it shadows the built-in type str.
Alternate to what @larsmans provided, you can also use ctypes.c_char_p
>>> from ctypes import *
>>> st = 'string ends with null\x00\x11u\x1ai\t'
>>> c_char_p(st).value
'string ends with null'
And as always unlike C/C++, strings in python are not Null Terminated
Another alternate would be to use split:
>>> str = 'string ends with null\x00\x11u\x1ai\t\x00more text here'
>>> str.split('\x00')[0]
'string ends with null'
>>> str.split('\x00')
['string ends with null', '\x11u\x1ai\t', 'more text here']
