Python program to count lower case letters in a string

November 4, 2020 Guest Contributor

To check if a letter is lower case or not in Python, we can use the islower() method. Combine it with a for loop, we can easily count the number of lower case letters in a…

Python program to count all capital letters in a string

November 4, 2020 Guest Contributor

The following Python program counts the number of capital letters in a string. The code: Output: That’s it. Happy coding with Python ๐Ÿ™‚

Python program to count files inside a folder

November 3, 2020 A Goodman

The Python program below counts the number of files inside a folder. Program folder structure: Note that the photos folder contains 11 files and 1 empty folder named empty. The code and explanation: Output:

Python: Count words in a string using Regular Expression

November 3, 2020 Guest Contributor

The Python program below counts the number of words in a given string. Whitespace and any special symbols except the underscore will be ignored. Output:

5 essential List Methods in Python 3

February 9, 2021 A Goodman

List is an extremely important datatype in Python and you will work with it a lot when building programs. It is not necessary to memorize all List methods in Python, but mastering the most popular methods…

How to deep copy a List in Python

January 29, 2021 A Goodman

To copy a list in Python (not just copy its reference), you can use the deepcopy method of the copy module Example The code: Output:

Python: Generate a random integer between Min and Max

October 29, 2020 A Goodman

To generate a random integer between two given integers, you can use the randint method of the random module. Example Hope this helps ๐Ÿ™‚

5+ Python For Loop examples

October 29, 2020 A Goodman

A few examples of the For loop in Python. Print all the divisible-by-x numbers from 0 to n a) Print all the divisible-by-3 numbers from 0 to 100: Output: b) Print all the divisible-by-7 numbers from…

Python: Calculate Fibonacci number with 4 lines of code

October 29, 2020 A Goodman

The Fibonacci numbers Fibonacci numbers with Python Reminder: Python accepts function recursion, which means a defined function can call itself. With only 4 lines of Python code, we can write a program that calculates the n-th…

Python: Sum integers from 1 to N the easiest way

October 24, 2020 Guest Contributor

This’s a short and straight to the point guide to calculating the sum of integers from 1 to n in Python. The code: Output:

Check Python versions on Mac

October 23, 2020 A Goodman

To check Python 2 version in macOS, use: Output (your version may be higher or lower a little bit): To see the exact version of Python 3 in macOS, use: Output (your version may be higher…

How to run Python 3 with Nodemon on Mac

October 23, 2020 A Goodman

Python 2 is pre-installed in macOS, thus when you try to run your Python code with Nodemon like this: then Python 2 starts its job. If you want to use Python 3 instead, run this command:…

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