Super fast hex encoding

gistfile1.txt

from timeit import timeit
from ctypes import *
'''
libc = CDLL('libc.so.6')

libc.mprotect(0x400000,0x1000,7)
s = "e810000000303132333435363738394142434445465b803f007437c6065c48ffc6c6067848ffc68a074825ff00000048c1e8044801d88a00880648ffc68a074883e00f4801d88a00880648ffc648ffc7ebc4c3".decode('hex')
#s = "\xc3"
libc.memcpy(0x400000, c_char_p(s),len(s))

fd = CFUNCTYPE(c_int, c_char_p, c_char_p)

f = fd(0x400000)

binarystring = "A"*1000

a = lambda: (lambda out: (out,f(c_char_p(binarystring),c_char_p(out)))[0])("B"*(len(binarystring)*4))
print timeit(stmt=a, number=10000)
'''

binarystring = "A"*1000

# One liner
a = (lambda libc, sc: (lambda fd: (lambda: (lambda out: (out,fd(0x400000)(c_char_p(binarystring),c_char_p(out)))[0])("B"*(len(binarystring)*4))))((libc.mprotect(0x400000,0x1000,7), libc.memcpy(0x400000, c_char_p(sc),len(sc)), CFUNCTYPE(c_int, c_char_p, c_char_p))[2]))(CDLL('libc.so.6'), 'e810000000303132333435363738394142434445465b803f007437c6065c48ffc6c6067848ffc68a074825ff00000048c1e8044801d88a00880648ffc68a074883e00f4801d88a00880648ffc648ffc7ebc4c3'.decode('hex'))
print a()
print timeit(stmt=a, number=10000)