In this article, we will cover some of the ways to clean up your data and make it easier to read and access using the built-in Python pprint module. Remember, your machine is very efficient with your data, but it doesn’t care how that data appears to the human eye. So let’s learn how to … Read more
Problem Formulation Given a Python string: 💬 Question: How to convert the string to a CSV file in Python? The desired output is the CSV file: ‘my_file.csv’: a,b,c 1,2,3 9,8,7 Simple Vanilla Python Solution To convert a multi-line string with comma-separated values to a CSV file in Python, simply write the string in a file … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to replace whitespaces with underscores in Python. To make it more fun, we have the following running scenario: Bryan, an IT Instructor, has given his students a Python coding challenge: Take a famous quote and replace all whitespaces with underscores in four (4) ways: … Read more
The TypeError: unhashable type: ‘list’ usually occurs when you try to use a list object as a set element or dictionary key and Python internally passes the unhashable list into the hash() function. But as lists are mutable objects, they do not have a fixed hash value. The easiest way to fix this error is … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to convert a String representation of a list consisting of multiple numbers to a list of integers in Python. 🌎 Related Tutorial: How to convert a list of integers to a list of strings in Python? To make it more fun, we have the … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to create high-precision data types in Python. 💡 Definition: High-precision data types are numeric data types, such as integers, or floats, that use additional memory when complex mathematical calculations require extreme accuracy. 💬 Question: How would we write Python code to create high-precision data … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to write integers to a file in Python. To make it more fun, we have the following running scenario: MediTech, a pharmaceutical manufacturing company, is seeking the best way to save its drug test results. They have contacted you to provide possible solutions. Integers … Read more
Problem Formulation Input: You have some data in a CSV file stored in ‘my_file.csv’ where the first row is the header and the remaining rows are values associated to the column names in the header. Name,Job,Age,Income Alice,Programmer,23,110000 Bob,Executive,34,90000 Carl,Sales,45,50000 Desired Output: You want to store the data in an XML file ‘my_file.xml’ so that each … Read more
Summary: Python’s newline character \n indicates the end of a line of text. The built-in print() function automatically adds a newline character \n at the end. You can customize this behavior of separating two lines using a single newline character ‘\n’ by changing the default end=’\n’ argument of the print() function to your desired string. … Read more
Basic Challenge 💬 Challenge: How to convert a CSV file to a text file in Python? Here’s the content of an example CSV file “my_file.csv” used in our code snippet below: If you visualize this CSV in table form, it looks like this: Name Job Age Income Alice Programmer 23 110000 Bob Executive 34 90000 … Read more
I’m sitting in front of my computer refactoring Python code and have just thought of the following question: Can You Use a Regular Expression with the Python string.startswith() Method? The short answer is no. The string.startswith() method doesn’t allow regular expression inputs. And you don’t need it because regular expressions can already check if a … Read more
Summary: You can convert a string to binary in Python using: bytearray() + bin() map() + bin() + bytearray() join() + format() + bytearray() join() + format() + ord() binascii.hexlify() Problem: How to convert a given string to its binary equivalent in Python? Example: When you convert a string to binary, it either results in … Read more