<=> is the NULL-safe equals operator
SELECT * FROM reports WHERE NOT driver <=> user_id
Visit to the ZCOM
15 Steps for successful Bootstrapping – Part 2
this is the second part to Bootstrapping – Part 1
Time to Cash – When do I get my money?
More important than “time to market” (when can I offer my product on the market) is “time to cash”: when do I get the money for my service?
For a successful bootstrapping, it makes no sense to sell and sell and to only bill once a year. Continue reading “15 Steps for successful Bootstrapping – Part 2”
Checking test coverage with pytest-cov
Test coverage
I wanted to analyze my python package flaskurls for test coverage. this is how you can do it:
pipenv install pytest-cov py.test --cov=flask_url_mapping tests/
----------- coverage: platform win32, python 3.6.5-final-0 ----------- Name Stmts Miss Cover ----------------------------------------------------- flask_url_mapping\__init__.py 1 0 100% flask_url_mapping\flask_urls.py 73 0 100% ----------------------------------------------------- TOTAL 74 0 100% ========================== 10 passed in 0.60 seconds ==========================
10 things I didn’t know about Data Science a year ago
In my article My personal road map for learning data science in 2018 I wrote about how I try to tackle the data science knowledge sphere. Due to the fact that 2018 is slowly coming to an end I think it is time for a little wrap up.
What are the things I learned about Data Science in 2018? Here we go:
1. The difference between Data Science, Machine Learning, Deep Learning and AI
Continue reading “10 things I didn’t know about Data Science a year ago”
The Agile Manifesto
When you are working in an agile team e.g. Scrum you might have heard about the agile manifesto. Formulated in 2001 it influenced a lot of software developers and methodologies like Scrum.
Moving Motivators
An interesting technique from the Management 3.0 book “Managing for happiness” is the moving motivators exercise.
Motivators
Jurgen Appelo compiled motivational factors from different sources like Steven Reiss’ 16 basic desires, Ryan and Deci’s self determination theory and last but not least Daniel Pink’s Drive!
He came up with the following list of 10 motivators which can be best memorized with the mnemonic “CHAMPFROGS”: Continue reading “Moving Motivators”
What is Big Data
Big Data is a buzz word nowadays. But when is data “big data”?
Distributing your own package on PyPi
In Regular Expressions Demystified I developed a little python package and distributed it via PyPi.
I wanted to publish my second self-written package as well, but coming back after almost a year, some things have changed in the world of PyPi, i.e. the old tutorials aren’t working anymore.
So I wrote this article to bring some clarity into this topic.
Distutils vs Setuptools
Keyboard shortcuts for signals in the macOS terminal
When working with a terminal / console in unixoid systems like Linux or macOS you may have encountered a command like CTRL + C to terminate a running process. There are a few more:
| Signal | Control character |
|---|---|
| SIGINT | CTRL + C |
| SIGTSTP | CTRL + Z |
| SIGINFO | CTRL + T |