Refactored hexy script

gistfile1.py

#!/usr/bin/python2
import sys

arg = sys.argv
if len(arg) != 3:
    exit(1)

infile  = arg[1]
outfile = arg[2]

try:
    data = open(infile, 'rb').read()
except IOError:
    sys.stderr.write('Binary file does not exist!\n')
    exit(1)

name = outfile.upper()
out = open(outfile + '.h', 'w')
out.write(
'''#ifndef _%s_
#define _%s_

const unsigned char %s[] = {''' % (name, name, name)
)

for i, char in enumerate(data):
    if (i % 8) == 0:
        out.write('\n' + (' ' * 4))
    out.write('0x%02x' % ord(char))
    if i < (len(data) - 1):
        out.write(', ')

out.write(
'''
};

#endif
'''
)
out.close()