DEV Community

Cover image for Python Tips & Tricks For Beginners
Raghav Mrituanjaya
Raghav Mrituanjaya

Posted on β€’ Edited on β€’ Originally published at thegogamicblog.xyz

6 1

Python Tips & Tricks For Beginners

In this short yet effective post, we will discuss some of the top tips and tricks in python that might help you write your code faster πŸš€

Reversing a string

s = "This is a String"
print(s[::-1])
Enter fullscreen mode Exit fullscreen mode

Removing duplicates from a list

a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
b = list(set(a))
print(b)
Enter fullscreen mode Exit fullscreen mode

Merging Two or More Dictionaries

a = {'a': 1, 'b': 2}
b = {'c': 3, 'd': 4}
c = {**a, **b}
Enter fullscreen mode Exit fullscreen mode
  • This trick might only work for Python version >= 3.5

Converting a list of strings into a string

a = ['a', 'b', 'c']
b = ''.join(a)
print(b)
Enter fullscreen mode Exit fullscreen mode

Retrieving the memory size

a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
print(sys.getsizeof(a), "Bytes")
print(sys.getsizeof(a) / 1024, "Megabytes")
Enter fullscreen mode Exit fullscreen mode

Formatting Numbers

num1 = 100_000_000_000
num2 = 100_000_000_000
num3 = num1+num2
print(f"{num3:,}")
Enter fullscreen mode Exit fullscreen mode
  • The output will be 200,000,000,000

Final Thoughts

  • This post may get updated from time to time
  • If you would like to mention any tricks kindly mention them in the comment section below

P.S:- Vultr(Get a $100 credit by registering using this link) is a good hosting choice if you're looking for one

Retry later

Top comments (2)

Collapse
 
sokhavuth profile image
Sokhavuth TIN β€’

To highlight Python code, you just write the word Python or py after the opening triple quote:

num1 = 100_000_000_000
num2 = 100_000_000_000
num3 = num1+num2
print(f"{num3:,}")
Enter fullscreen mode Exit fullscreen mode
Collapse
 
raghavmri profile image
Raghav Mrituanjaya β€’

I have edited the post :) Thanks for letting me know!

Retry later
Retry later