ti_rand.py

mod1  = 2147483563
mod2  = 2147483399
mult1 = 40014
mult2 = 40692
seed1 = 12345
seed2 = 67890

def seed(n):
  global seed1, seed2, mod1, mod2
  if n < 0:
    n = -n
  if n == 0:
    seed1 = 12345
    seed2 = 67890
  else:
    seed1 = (mult1*n)%mod1
    seed2 = n%mod2

def rand():
  global seed1, seed2, mod1, mod2, mult1, mult2
  result = 0
  seed1 = (seed1 * mult1) % mod1
  seed2  = (seed2 * mult2) % mod2
  result = (seed1 - seed2) / mod1
  if result < 0:
    result = result+1
  return round(result,5)

def randInt(min, max, count=None):
  if count == None:
    return min + int((max-min+1)*rand())
  else:
    result = [randInt(min, max) for _ in range(count)]
    return result

def randIntNoRep(min, max, count=None):
  if count == None:
    result = list(range(min, max+1))
    count = len(result)
    for i in range(count, 0, -1):
      j = randInt(0, count-1)
      result[i-1], result[j] = result[j], result[i-1]
    return result
  else:
    result = []

    inc = False
    failures = 0
    while len(result) < count:
      num = randInt(min, max)

      if num in result:
        failures += 1
        if failures == 3:
          inc = not inc
          while num in result:
            if inc:
              num += 1
              if num > max:
                num = min
            else:
              num -= 1
              if num < min:
                num = max
          failures = 0
          result.append(num)
      else:
        failures = 0
        result.append(num)
    
    return result
print(randIntNoRep(0,6,7))