python - Why is modulo resulting in floating point numbers? -

i wrote code takes 10 base number , converts different base number. first iteration of while loop produces integer. subsequent iterations produce floating point numbers. why? producing correct answer, floating point. idea why?

num = 128 abase = 2 tlist = [] while num > 0:     tcr = num%abase     tlist.append(tcr)     num -= tcr     num = num / abase print(tlist) tlist = tlist[::-1]  temp = 0 item in tlist:     temp *= 10     temp += item           temp = str(temp) print(temp) 

x // y (floored) quotient of x , y

it because of num = num / abase division operator. change to: num = num // abase

updated code:

def test():     num = 128     abase = 2     tlist = []     while num > 0:         tcr = num%abase         tlist.append(tcr)         num -= tcr         num = num // abase     print(tlist)     tlist = tlist[::-1]      temp = 0     item in tlist:         temp *= 10         temp += item               temp = str(temp)     print(temp)  test() 

output:

[0, 0, 0, 0, 0, 0, 0, 1] 10000000 

reference:

• https://docs.python.org/2/library/stdtypes.html#numeric-types-int-float-long-complex