ChrisMany coders struggle with Python built-in string functions. Instead of reusing the great functionality implemented by experts in the field, they reinvent the wheel implementing string functions on themselves. Ultimately, they lose time, money, and energy—writing inefficient code! Don’t let this be you. ? Here’s a tiny Instagram tutorial that shows you the most important … Read more
For my new book “Python Brain Games” (to appear in 2019, follow my email training program to get updates), I’m experimenting with a new code puzzle type: logics puzzles and brain games. It’s like Sudoku for coders! ?? Can you solve these five puzzles in five minutes? You can find the solutions at the end … Read more
This is a first draft for an introductory chapter of the fifth book of my “Coffee Break Python” series. If you want to follow the updates of this book, subscribe to my Python email training program where I’ll announce the book as soon as it’s ready. A large body of psychological research divides your general … Read more
This is a common question on many forums. And the answer is — it only takes a few seconds. It’s all about your self-perception. Writing my first (Python) book was hard. It was hard to produce unique text, day after day, without any immediate feedback from the market. Working on such a long-term project without getting any … Read more
The world of programming is different than other professions because it’s a practical, hands-on profession. Coders who get results and can showcase practical projects that solve real problems will always win in this marketplace. You don’t need a degree. Say, you just solved one Upwork project after another. You have a lot of good testimonials … Read more
NumPy is not the trendiest Python library in the world. There are libraries such as TensorFlow or Scikit-learn for machine learning. These libraries get all the attention these days. However, in this article, I want to highlight the importance of learning the basics first. You cannot learn TensorFlow before you’ve learned Python. Similarly, you cannot … Read more
I got this question recently regarding Python freelancing and I immediately thought that’s a brilliant idea. (Seriously.) Why should this be a good idea considering that Python freelancers earn $51 per hour on average? Because you can increase your Python skill level but you don’t have to polish your salesman skills from day one. It’s … Read more
Of course, you can. However, the question misses the point. It’s not about how many programming languages you know. It’s about how much expertise you have in the areas that matter. If you are good at Python, you’ve already proven that you have expertise in the technical programming area. Now, it’s much more about how … Read more
Yesterday, I found this email in my INBOX — sent by Finxter Muhammad, one of my most loyal “Coffee Break Python” email readers: ~~~ I have good news I got a job as a Python programmer in a software house.All credit goes to you – Your daily puzzles made me good in Python….. ~~~ While … Read more
Today, I filled in the author questionnaire for any author who publishes a book with the international techbook publisher NoStarchPress. I share this article because (1) other authors may be interested in how the concrete questions look like, and (2) Finxter readers may be interested in the upcoming book “Python One-Liners” (to appear in 2019) … Read more
Say, you are working for a large bank. Your hacker colleague implemented a magic function that uses SSH to log into the bank’s core server (written in COBOL which you don’t know at all), analyzes the CPU usage over the last 24 hours, and returns the result as a cryptic string value. Your boss asks … Read more
You may know the np.cumsum() function from the NumPy library that calculates the cumulative sum of a given NumPy array. How can we implement this function in Python? Studying this will not only show you how the NumPy cumsum function works, but it’ll also make you a better coder because it contains many important concepts … Read more