Andrew

When you have performance problems in your Python application, you can use a Profiler to help you. Step 1: Using cProfile Your first option is… Read More »How to use Profilers in Python

The challenge Given a non-negative integer, 3 for example, return a string with a murmur: “1 sheep…2 sheep…3 sheep…”. Input will always be valid, i.e. no negative integers.… Read More »If you can’t Sleep, just count Sheep in Python

Python provides the ability to create Translation Tables. First we create a Translation Table by calling str.maketrans(x, y, z), passing in our characters we want… Read More »How to use a Translation Table to Replace Characters in Python

Let’s take the following string: How can we sum up all the numbers in this string? In the above code snippet, we split the string… Read More »How to Calculate the Sum of all Numbers in a String in Python

Python comes with a very useful module called itertools, which allows us to calculate permutations directly. This will result in 60 permutations: How to Find… Read More »How to Find all Permutations of a String in Python

Let’s take the following sentence: We can use slices to reverse the order of the string: Let’s say we wanted to reverse each word in… Read More »How to Reverse Words or Sentences in Python

Python comes with the base64 module, but how do you use it? You start by including the module: But you would probably expect to just… Read More »How to Base64 Encode a String in Python

The random module allows you to generate choices. This might give us back something like: [635, 450, 26, 829, 786, 563, 294, 586, 893, 953]… Read More »How to Get 10 Random Numbers in Python

The challenge Return the middle character of the word. If the word’s length is odd, return the middle character. If the word’s length is even,… Read More »Get the Middle Character in Python

If you have a string and want to create a Datetime object out of it in Python, then you can use the Datetime Parse Time… Read More »Convert String to Datetime in Python

Python ships with a multiprocessing module that allows your code to run functions in parallel by offloading calls to available processors. In this guide, we… Read More »Multiprocessing Pools in Python

The challenge Given a string, you have to return a string in which each character (case-sensitive) is repeated once. The solution in Python code This… Read More »How to Double Characters in Python

The challenge Complete the function that accepts a string parameter, and reverses each word in the string. All spaces in the string should be retained. Examples The… Read More »How to Reverse Words in Python

The challenge Create a function with two arguments that will return an array of the first (n) multiples of (x). Assume both the given number… Read More »How to Count by X in Python

The challenge Given a list of integers and a single sum value, return the first two values (parse from the left please) in order of… Read More »Calculate the Sum of Pairs in Python

If you have a large list and want to create smaller lists of it, with a maximum amount of elements, then: This will look like:

If you want to print out a list of all dates between 2 dates (a date range), then you can use the following script: This… Read More »Get all dates between two dates inclusive in Python

If you want to append a Python dictionary to a Pandas DataFrame, you can do this: Notice the reassignment output = output.append(…)

The challenge Implement a function that adds two numbers together and returns their sum in binary. The conversion can be done before or after the… Read More »How to do Binary Addition in Python