<head> <script src=”../js/constants.js” type=”module”></script> <script src=”../js/script.js” type=”module”></script> </head> constants.js export const projects = [ “Project-A”, “Project-B”, “Project-C”, ]; script.js import {projects} from “./constants.js”;
Everything we did in the last articles of the series SQL-Tutorial was a dry run because we just used SQLFiddle. So let’s start with a real database like SQLite. SQLite is a file based DBRMS and can be used for e.g. web sites. The official docs say: “SQLite works great as the database engine for…
After laying the foundation in Introduction to matplotlib and Introduction to matplotlib – Part 2 I want to show you another important chart Bar Charts A bar chart is useful to show total values over time e.g. the revenue of a company. years = (2017, 2018, 2019) revenue = (5000, 7000, 9000) plt.bar(years, revenue, width=0.35)…
# import and instantiate model from sklearn.linear_model import LinearRegression model = LinearRegression() #prepare test data features_train = df_train.loc[:, ‘feature_name’] target_train = df_train.loc[:, ‘target_name’] #fit (train) model and print coefficient and intercept model.fit(features_train , target_train ) print(model.coef_) print(model.intercept_) # calculate model quality from sklearn.metrics import mean_squared_error from sklearn.metrics import r2_score target_prediction = model.predict(features_train) print(mean_squared_error(target_train , target_prediction))…
At PyConDE Berlin 2019 Florian Bruhin gave a really nice session about testing with pytest, which I try to recap here. Writing Tests If You want to work with pytest you can install it via: pip install pytest When you know basic python unittest fixtures, good news ahead: pytest is compatible and will run your…
This article is part of my SQL-Tutorial Motivation Sometimes you need to retrieve data from a database without knowing the exact string to look up so wildcards for the rescue Underscore Se_en represents a pattern with a wildcard character. The _ means you can substitute any individual character here without breaking the pattern. It matches…
My Tale of Woe When I graduated from university and had my first job as a software engineer at Harman Becker Automotive Systems GmbH I should do the parental leave cover for a colleague. He showed me his project, gave me some info e.g. contact person and went off to Canada. Literally on the second…
Stackoverflowing around I found this nice package https://github.com/wolever/parameterized Parameterized testing in Python sucks. parameterized fixes that. For everything. Parameterized testing for nose, parameterized testing for py.test, parameterized testing for unittest. Reading this description I had very high expectations 🙂 So let’s see if the package can hold up to it.
I’ve always wanted to go to a conference and with PyConDE I’ve found one that suited me well: The price point of 300 bucks for 3 days of conference, 2 days of workshops and the opportunity to go to Berlin and visit my friend Thomas was fascinating!
Features and Bugs After showing the app around, I got a lot of input how to improve the concep