Python: Select a random element from a list, set, dictionary and a file from a directory
Python module: Exercise-2 with Solution
Write a Python program to select a random element from a list, set, dictionary-value, and file from a directory.
Use random.choice
Sample Solution:
Python Code:
import random
import os
print("Select a random element from a list:")
elements = [1, 2, 3, 4, 5]
print(random.choice(elements))
print(random.choice(elements))
print(random.choice(elements))
print("\nSelect a random element from a set:")
elements = set([1, 2, 3, 4, 5])
# convert to tuple because sets are invalid inputs
print(random.choice(tuple(elements)))
print(random.choice(tuple(elements)))
print(random.choice(tuple(elements)))
print("\nSelect a random value from a dictionary:")
d = {"a": 1, "b": 2, "c": 3, "d": 4, "e": 5}
key = random.choice(list(d))
print(d[key])
key = random.choice(list(d))
print(d[key])
key = random.choice(list(d))
print(d[key])
print("\nSelect a random file from a directory.:")
print(random.choice(os.listdir("/")))
Sample Output:
Select a random element from a list: 3 4 5 Select a random element from a set: 1 3 5 Select a random value from a dictionary: 5 4 4 Select a random file from a directory.: proc
Flowchart:
Python Code Editor:
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