π² Control Python's randomness
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Welcome back to Pandas Daily! Master Python in just 5 minutes a day. β Today: Understand Python's "random" module to generate random numbers, create random samples for simulations, make random choices etc. Mini exercise at the end! β Before we start, a quick question for you!
Thanks! Now, lets begin! What is random module and why you should care?Simply put- random module generates random numbers and random choices. Some use cases:
Lets go into the code β π« Import/Load the module
In:
import random
Out:
β 𧩠Generate a floating (decimal) number between 0 and 1
In:
print(random.random())
Out: 0.7905682961988124
β π± Seeding: To reproduce exact same results (very important as "random" will not give same output) 1οΈβ£ We produce a random number 'a' once
In:
random.seed(42) a = random.random() print(a)
Out: 0.6394267984578837
β 2οΈβ£ Can we get the same random number again as 'b'?
In:
b = random.random() print(b)
Out: 0.025010755222666936
β 3οΈβ£ How to make sure we get the same output every time? Use same seed
In:
random.seed(42) b = random.random() print(b)
Out: 0.6394267984578837
Moving on.. β π² Any floating number between two numbers
In:
print(random.uniform(10.5, 20.5))
Out: 13.745401188473625
β #οΈβ£ Generate integer in a given range using randint(start, end)
In:
print(random.randint(1, 10))
Out: 7
β πͺ 1 step further - Produce numbers in a given range but only at specific intervals: randrange(start, end, interval) chose from 0,5,10,15,20
In:
print(random.randrange(0, 20, 5))
Out: 15
β βοΈ Random Choice: When you don't know the right answer in the exam π
In:
print(random.choice([True, False]))
Out: True
β πΈ Another Random Choice: Selecting a fruit or a lottery
In:
items = ["apple", "banana", "cherry"] print(random.choice(items))
Out: banana
ποΈ Mini Exercise (Reply with your code) β Use
βπ£ That's it for today! If you liked it, please share it with anyone who will find it useful and share your feedback below πΌ β
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