I have a list
data=['_','_','A','B','C',1,2,3,4,5] I need to randomly get an integer among 1,2,3,4,5 The list keeps getting modified so i cant just simply choose from the last 5 members
Here's what i tried but it throws an error retrieving the other members:
inp2=int(random.choice(data)) You can filter the non-integer items;
inp2 = ramdom.choice([x for x in data if isinstance(x, int)]) Though it is almost similar to the answer of Neo, you can also try this:
inp2 = random.choice(filter(lambda d: isinstance(d, int), data)) To create a list of last 5 elements.
>>> from random import choice >>> data=['_','_','A','B','C',1,2,3,4,5] >>> l = len(data) >>> data[(l-5):l] [1, 2, 3, 4, 5] >>> k = data[(l-5):l] >>> choice(k) 5 >>> choice(k) 2 >>> 
random.choice([i for i in data[-5:] if isinstance(x, int)]) It is more safe for check type of data[-5:] by isinstance().
Try this.
import operator inp2 = random.choice(filter(operator.isNumberType, data)) For this specific problem selecting last 5 elements also a good solution.
inp2 = random.choice(data[5:]) 
int, float, long etc. But OP needs only int types here.I think the best solution would be creating another list, where would be just int values you want to pick from. I don't know your specified assignment, but for example if you have a method for adding to your list, just add there:
def add(self, element): self.data.append(element) if type(element) == int: self.data_int.append(element) and then just use:
def get_value(self): return random.choice(self.data_int) 