Text -> Brainfuck

#!/usr/bin/python
from __future__ import print_function
from sys import argv
from math import sqrt, floor

text = " ".join(argv[1:])

def p(*args):
    print(*args, sep='', end='')

p(' [-]>')
if len(text) > 0:
    p('[-]','\n')

for ch in text:
    ch = ord(ch)
    if ch > 16:
        s = int(round(sqrt(ch)))
        d = ch-s*s
        sgn = d > 0 and '+' or '-'
        if d < 0:
            d = -d
        p('>[-]', s * '+', '[-<', s * '+', '>]')
        if d != 0:
            p('<', d*sgn, '>')
    else:
        p(ch*'+', '>')
    p('\n')

p('<[<]>', '[.>]', '\n')