writing integer values to a file using out.write()

write() only takes a single string argument, so you could do this:

outf.write(str(num))

outf.write('{}'.format(num))  # more "modern"
outf.write('%d' % num)        # deprecated mostly

Also note that write will not append a newline to your output so if you need it you'll have to supply it yourself.

Aside:

Using string formatting would give you more control over your output, so for instance you could write (both of these are equivalent):

num = 7
outf.write('{:03d}\n'.format(num))

num = 12
outf.write('%03d\n' % num)

to get three spaces, with leading zeros for your integer value followed by a newline:

007
012

format() will be around for a long while, so it's worth learning/knowing.

any of these should work

outf.write("%s" % num)

outf.write(str(num))

print >> outf, num

i = Your_int_value

Write bytes value like this for example:

the_file.write(i.to_bytes(2,"little"))

Depend of you int value size and the bit order your prefer

Related