ValueError; low >= high

Question

I am getting "low >= high" error in the loop code below, how can it be resolved?

while True:
    max_num = 1000
    num_1 = np.random.randint(1, max_num)
    num_2 = np.random.randint(1, max_num)

    if (num_1 < num_2):
        num_2 = np.random.randint(1, num_1)
    break

Asked By: Emir

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Source

Answer 1

In your condition:

if (num_1 < num_2):
      num_2 = np.random.randint(1, num_1)

num_1 can equal to 1. In this case this np.random.randint(1, num_1) gives the error, as the low and the high integers are equal.

Answered By: Franciska

Answer 2

Your while loop is pointless currently since it will always break on the first iteration.

Since you seem to want two random numbers, where num_1 >= num_2, a simple fix would be just:

max_num = 1000
while True:
    num_1 = np.random.randint(1, max_num)
    num_2 = np.random.randint(1, max_num)

    if (num_1 >= num_2):
        break

This will keep looping, picking fresh pairs of random numbers, until the desired condition (num_1 >= num_2) is met.

Answered By: Anentropic

ValueError; low >= high

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