I am hoping to get some clarity on this error message

I get this error and was hoping to get a little clarity on the meaning.I am not necessarily looking for the solution so much as the meaning behind it, as it’s not the first time I’m seeing it

SuspensionError: Cannot call a function that blocks or suspends here at [Homeform.questionForm, line 78](javascript:void(0))

    for x in range(1):
      row = random.choice(new_user)         # line78
      y = row['email']
      print(y)

I’m sorted
Should have spent a bit more time on it