Python：随机 Select 字典中所有键中的一个键

Question

Let's say I have accessed my dictionary keys using print (hamdict.keys())

Below is a sample output:

I know my dictionary list has a length of 552 elements. I want to randomly select one "key" word from my list and assign it to the variable "starter". I tried to do this with the code below (note: I have a dictionary called hamdict):

random_num = random.randint(0, len(hamdict.keys())-1)
print (random_num)
print (hamdict.keys()[random_num])

I'm able to get a value for random_num so that seems to work. But the second print returns the following error:

How can I fix my code?

Answer 1

my_dictionary.keys() returns a generator-like object, not a list. You can probably get what you want by converting it to a list first

print(list(hamdict.keys())[random_num])

Answer 2

Try this:

random.sample(hamdict.keys(),1)[0]

The sample() function randomly selects a given number of items from a list or iterator. Contrary to the choice function, it supports iterators so you don't need to make a list out of the keys beforehand. The result is a list so you need to get its first item from the output (hence the [0] ).