A Raspberry Pi is a 'mini computer' one can purchase and use it to make customized projects e.g Quiz, Home surveillance system and temperature calculator.
Python 3 is a programming language which can be downloaded for free from this website. https://www.python.org/downloads/
Flask is used in combination with Python to create web applications.
To install Flask first you must open your terminal and type in sudo apt-get install python-pip like shown in the image.
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Then you must the pip module to install flask by typing in sudo pip3 install flask into your terminal.
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