10 examples of 'random.choice python' in Python

273
def choice(self, seq):
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    """Choose a random element from a non-empty sequence."""
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    return seq[int(self.random() * len(seq))]  # raises IndexError if seq is empty

84
def choice(*args, **kwargs):
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    return _default.choice(*args, **kwargs)

92
def randSelect(self, seq):
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    """
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    Randomly select an element from a sequence. If the argument
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    'seq' is a dict, a randomly selected key will be returned.
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    :param seq: sequence to randomly select from
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    :type seq: list
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    :returns: element from seq if seq is a list, a key if seq
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        is a dict, or None if seq is empty
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    """
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    if isinstance(seq, dict):
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        selection = RandomGen.randGen.choice(list(seq.keys()))
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    elif seq:
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        selection = RandomGen.randGen.choice(seq)
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    else:
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        selection = None
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    return selection

67
def weighted_choice(choices):
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  total = sum(w for c, w in choices)
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  r = random.uniform(0, total)
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  upto = 0
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  for c, w in choices:
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    if upto + w >= r:
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      return c
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    upto += w
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  assert False, "Shouldn't get here"

48
def random_choice(image_size):
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    height, width = image_size
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    crop_height, crop_width = 320, 320
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    x = random.randint(0, max(0, width - crop_width))
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    y = random.randint(0, max(0, height - crop_height))
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    return x, y

33
def gen_random():
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    return random.random()

14
def random(size):
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    return rand(*size)

87
def random_choice(start, end , _multiply ):
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    start = start * _multiply
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    end = end * _multiply
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    num = random.randrange(start,end + 1 ,1)
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    #print ("il num e'",num/_multiply)
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    return float( num / _multiply)

165
def weighted_choice(items):
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    '''
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    Like random.choice but the items have weights to decide which is
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    more likely to be choosen.
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    Format: List of tuples. Tuple should have item first, then its weight i.e. [(item, weight), (item, weight)]
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    '''
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    total = sum([weight for item, weight in items])
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    threshold = random.uniform(0, total)
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    for item, weight in items:
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        # Lower the threshold each time through the loop
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        threshold -= weight
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        # If threshold met then item picked
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        if threshold <= 0:
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            return item
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    assert False, "Unreachable code point"

45
def take_random(seq):
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    elem = random.choice(seq)
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    seq.remove(elem)
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    return elem