Building and using Fledge on Raspbian

Fledge requires the use of Python 3.5.3+ in order to support the asynchronous IO mechanisms used by Fledge. Earlier Raspberry Pi Raspbian distributions support Python 3.4 as the latest version of Python. In order to build and run Fledge on Raspbian the version of Python must be updated manually if your distribution has an older version.

NOTE: These steps must be executed in addition to what is described in the README file when you install Fledge on Raspbian.

Check your Python version by running the command

$ python3 --version
$

If your version is less than 3.5.3 then follow the instructions below to update your Python version.

Install and update the build tools required for Python to be built

$ sudo apt-get update
$ sudo apt-get install build-essential tk-dev
$ sudo apt-get install libncurses5-dev libncursesw5-dev libreadline6-dev
$ sudo apt-get install libdb5.3-dev libgdbm-dev libsqlite3-dev libssl-dev
$ sudo apt-get install libbz2-dev libexpat1-dev liblzma-dev zlib1g-dev
$

Now build and install the new version of Python

$ wget https://www.python.org/ftp/python/3.5.3/Python-3.5.3.tgz
$ tar zxvf Python-3.5.3.tgz
$ cd Python-3.5.3
$ ./configure
$ make
$ sudo make install

Confirm the Python version

$ python3 --version
$ pip3 --version

These should both return a version number as 3.5.3+, if not then check which python3 and pip3 you are running and replace these with the newly built versions. This may be caused by the newly built version being installed in /usr/local/bin and the existing python3 and pip3 being in /usr/bin. If this is the case then remove the /usr/bin versions

$ sudo rm /usr/bin/python3 /usr/bin/pip3

You may also link to the new version if you wish

$ sudo ln -s /usr/bin/python3 /usr/local/bin/python3
$ sudo ln -s /usr/bin/pip3 /usr/local/bin/pip3

Once python3.5 has been installed you may follow the instructions in the README file to build, install and run Fledge on Raspberry Pi using the Raspbian distribution.