Articles about software development operations

How to create a virtual environment for your Python 3 application with python3-venv in Linux or Unix

The python3-venv module allows us to create lightweight “virtual environments” with their own site directories, optionally isolated from system site directories. Given that, we will be able to run multiple Python 3 environments with varying dependencies on the same computer.

This post shows how to create a virtual environment for your Python 3 application with python3-venv in Linux or Unix.

How to setup Jupyter Notebook on Ubuntu 16.04 of your Nvidia Jetson TX2 developer kit

When you want to quickly test out your machine learning algorithm, you can create Python 3 notebooks via Jupyter Notebook.

Therefore, Jupyter Notebook is one of the things that you may want to setup after getting started with your Nvidia Jetson TX2 developer kit.

With this in mind, this post shows how to setup Jupyter Notebook on Ubuntu 16.04 of your Nvidia Jetson TX2 developer kit.

How to use a Python 3 virtual environment in Windows 10

When you need each Python 3 application that you are building to run in its own isolated environment, you can turn to virtual environments.

Since Python is available on Windows 10, you can also use virtual environments on Windows 10.

Typically, using a Python 3 virtual environment in Windows 10 involves the following steps:

1. Installing Python 3 with pip and several features.
2. Creating a Python 3 virtual environment with Python 3 venv module.
3. Activating the Python 3 virtual environment.
4. Installing Python 3 packages that your Python application is using into the virtual environment.
5. Running your Python 3 application within the Python 3 virtual environment.
6. Deactivating the Python 3 virtual environment.

How to install python3-venv on Ubuntu 16.04

Since Ubuntu 16.04 is a very popular operating system, it is one operating system that you will likely come across when you are building software with Python 3. For example, if you want to get a Nvidia Jetson TX2 developer kit today, you will find yourself dabbling with Ubuntu 16.04.

On the other hand, the venv module of Python 3 is one recommended way to create virtual environments for our Python 3 projects.

In case you need it, this post describes how to install python3-venv on Ubuntu 16.04.

How to associate a virtual environment with a Python project in PyCharm

When it comes to Python development, PyCharm is my favourite IDE.

Before working on a new Python project, I like to create a virtual environment and associate it with the corresponding PyCharm project. In case you like this mode of operation, this is how you can associate a virtual environment with a Python project in PyCharm.

How to setup Python Imaging Library, Pillow, on Raspbian Stretch Lite for processing images on your Raspberry Pi

When you are building a Raspberry Pi project that deals with images, the Python Imaging Library, Pillow can be very useful. For example, if you connect a camera to your Raspberry Pi 2 or 3 and took a picture, you may want to resize the picture before sending it to a server endpoint.

In case you have trouble setting up Pillow on Raspbian Stretch Lite, this post is for your reference.

Configuring Nginx and PHP 7 stack in Linux to increase or decrease file upload size limit

PHP web applications can utilize Nginx as the reverse proxy server and PHP FPM as the upstream server. Whenever you encounter HTTP file upload issues, limitation in file upload size is one common cause.

This post shows how to adjust the file upload size limit for your application running on a Nginx-PHP stack in Linux.

How to setup your own Wiki site on a Raspberry Pi 3 with Dokuwiki, Raspbian Stretch Lite, Nginx and PHP

As a result of the proliferation of single-board computers like the Raspberry Pi 3, we get energy-efficient computers. In addition to being energy-efficient, Raspberry Pi 3 is small and priced affordably. Therefore, the Raspberry Pi 3 is an ideal gift for programmers.

Given that you had received one as a programmer, you may be wondering what you can do with it. In case you are yearning for your own Wiki site, you may consider setting up your DokuWiki site on your Raspberry Pi 3.

With this in mind, this post walks through how you can setup your own Wiki site on a Raspberry Pi 3 with Raspbian Stretch Lite, nginx and PHP.

How to setup Jupyter Notebook on Raspberry Pi 3 with Raspbian Stretch Lite, Supervisor and Virtualenv to run Python 3 codes

By taking Andrew Ng’s Deep Learning Coursera course, you can get a better understanding of deep learning. In addition, you will also get many Jupyter Notebook documents that you can reference to build models that can solve interesting problems.

In order to readily access these documents, you may want to setup Jupyter Notebook on a single board computer like the Raspberry Pi 3. With this in mind, this post shows how you can setup Jupyter Notebook on Raspberry Pi 3 with Raspbian Stretch Lite, Supervisor and Virtualenv to run Python 3 codes.