A Simple Formula on How to Invest for Retirement as a Self-Employed Freelance Coder

No matter where you live, relying on the government to take care for your retirement is a stupid gamble—with your future at stakes. Nobody can see even 10 years into the future. And your government cannot guarantee to you that they will fund your retirement—you don’t even know how your government will look like in … Read more

What is the Easiest Work on Freelancer.com?

So you want to join the workforce of the 21st century—by working as a freelancer? No matter whether you want to work on the side or full-time, you need to earn some trust first. Clients want to see that you are a reliable freelancer who can finish tasks successfully. To this end, it makes sense … Read more

How can I embed Python code in an XML file?

You can do this using the excellent framework Karrigell. This framework is focused on HTML though. “Karrigell is an open source Python web framework written in Python” (source). Say you want to embed the following Python code inside your HTML doc: With Karrigell, you can achieve this by using the <% … %> environment: Similarly, … Read more

How to Get 100-1000% Return on Investment Easily?

Sorry for the click-bait. But I’ve just read about a similar Quora question and some people were discussing ways to earn 10% on the stock market. In many cases, they proposed high-risk strategies for stock picking. I don’t want to argue too much against those ideas (they are stupid—you cannot beat the stock market over … Read more

How to Calculate Variance of Python NumPy Arrays?

Numpy is a popular Python library for data science focusing on arrays, vectors, and matrices. Did you already learn something new today? Let’s master the popular variance function in NumPy! Problem: How to calculate the variance of a NumPy array? Solution: To calculate the variance of a Python NumPy array x, use the function np.var(x). … Read more

What is a DevOps Specialist?

Surprisingly, DevOps specialists “are among the highest paid, most experienced developers most satisfied with their jobs, and are looking for new jobs at the lowest levels”  according to the recent StackOverflow developer report. The report shows that almost 11% of all programmers classify themselves as DevOps specialists. On average, they earn $71,000 per year (worldwide) and $122,000 … Read more

How to Invest as a Python Programmer?

Investing is the most natural thing in the universe. Trees invest energy into seeds. Parents invest time, money, and sleepless nights into their children. Companies invest in employees. States invest in public school systems. They invest because they expect growth of their investments. The one who invests more and smarter has a huge structural advantage. … Read more

Which Programming Language is Best for Freelancers?

Rather than having a technology-first mindset, the best freelance developers have a project-first mindset. They don’t limit themselves to a single technology so any answer that gives you a single technology to learn is fundamentally flawed. This article discusses practical freelancing projects and many of them are interdisciplinary. Here’s a list of projects and an initial reference … Read more

In Which Programming Language is the Android Operating System Implemented?

The Android operation system (OS) uses the Linux operating system kernel which is implemented in the programming language C. The Linux kernel is a program that sits between the hardware and the processes and manages resource allocation (e.g. CPU access) and device drivers (e.g. printers)—among other things. The kernel’s tasks are challenging and performance is … Read more

The 3 Best Ways to Make Money From Quora

The popular (and addictive) Question and Answer Site Quora is not just a hobby. There are many people earning serious money with it. Affiliate Marketing This guy earns money by including affiliate links into his answers. Read his excellent Quora answer to learn more about this way of earning money with affiliate links. Read Zach … Read more

How Many Bytes Does a Complex Number Have in Python?

The short answer is 80 bytes. Here’s the longer answer: In Python, you can determine the size of any object x by using the function sys.getsizeof(x). The complex number consists of two parts: the real and the imaginary part. On my notebook, a complex number is represented by 32 bytes: Note that the sys.getsizeof() method … Read more