This library has been deprecated in favor of our python3 Blinka library. We have replaced all of the libraries that use this repo with CircuitPython libraries that are Python3 compatible, and support a wide variety of single board/linux computers!
Visit https://circuitpython.org/blinka for more information
CircuitPython has support for almost 200 different drivers, and a as well as FT232H support for Mac/Win/Linux!
To access the MPSSE mode on Mac OSX we need to install libftdi and the Adafruit Python GPIO library. Carefully follow the steps below to install these libraries. Note that these steps were tested using OSX Mavericks. The steps should work for later versions like Yosemite, but you might need to search for extra help on installing Xcode command. May 30, 2012 The RPi.GPIO Python library allows you to easily configure and read-write the input/output pins on the Pi’s GPIO header within a Python script. Thankfully this library is now including in the standard Raspbian image available from the Foundations Download Page.
Library to provide a cross-platform GPIO interface on the Raspberry Pi and Beaglebone Black using the RPi.GPIO and Adafruit_BBIO libraries.
The library is currently in an early stage, but you can see how its used in the Adafruit Nokia LCD library to write Python code that is easily portable between the Raspberry Pi and Beaglebone Black.
Note that you typically don't need to install this library directly as other libraries will depend on it in their setup and automatically install it. However if you do need to manually install do so by running these commands:
On a Debian-based Linux like Raspbian, Ubuntu, etc. in a terminal execute:
On Mac OSX, first install PIP by downloading the python script here and execute it with python get-pip.py in a terminal, then install the git source control system. Then in a terminal execute:
On Windows, first install the latest Python 2.7 version, then install PIP by downloading the python script here and execute it with python get-pip.py in a terminal, and finally install the git source control system. Then in a git bash prompt execute:
For information on contributing, such as how to run tests, etc. please see the project wiki on GitHub.
As a popular open source development project, Python has an activesupporting community of contributors and users that also make their softwareavailable for other Python developers to use under open source license terms.
This allows Python users to share and collaborate effectively, benefitingfrom the solutions others have already created to common (and sometimeseven rare!) problems, as well as potentially contributing their ownsolutions to the common pool.
This guide covers the installation part of the process. For a guide tocreating and sharing your own Python projects, refer to thedistribution guide.
Note
For corporate and other institutional users, be aware that manyorganisations have their own policies around using and contributing toopen source software. Please take such policies into account when makinguse of the distribution and installation tools provided with Python.
pip is the preferred installer program. Starting with Python 3.4, itis included by default with the Python binary installers.
A virtual environment is a semi-isolated Python environment that allowspackages to be installed for use by a particular application, rather thanbeing installed system wide.
venv is the standard tool for creating virtual environments, and hasbeen part of Python since Python 3.3. Starting with Python 3.4, itdefaults to installing pip into all created virtual environments.
virtualenv is a third party alternative (and predecessor) tovenv. It allows virtual environments to be used on versions ofPython prior to 3.4, which either don’t provide venv at all, oraren’t able to automatically install pip into created environments.
The Python Packaging Index is a publicrepository of open source licensed packages made available for use byother Python users.
the Python Packaging Authority is the group ofdevelopers and documentation authors responsible for the maintenance andevolution of the standard packaging tools and the associated metadata andfile format standards. They maintain a variety of tools, documentation,and issue trackers on both GitHub andBitbucket.
distutils is the original build and distribution system first added tothe Python standard library in 1998. While direct use of distutils isbeing phased out, it still laid the foundation for the current packagingand distribution infrastructure, and it not only remains part of thestandard library, but its name lives on in other ways (such as the nameof the mailing list used to coordinate Python packaging standardsdevelopment).
Changed in version 3.5: The use of venv is now recommended for creating virtual environments.
See also
Mac library extensions not loading. The standard packaging tools are all designed to be used from the commandline.
The following command will install the latest version of a module and itsdependencies from the Python Packaging Index:
Note
For POSIX users (including Mac OS X and Linux users), the examples inthis guide assume the use of a virtual environment.
For Windows users, the examples in this guide assume that the option toadjust the system PATH environment variable was selected when installingPython.
It’s also possible to specify an exact or minimum version directly on thecommand line. When using comparator operators such as >, < or some otherspecial character which get interpreted by shell, the package name and theversion should be enclosed within double quotes:
Normally, if a suitable module is already installed, attempting to installit again will have no effect. Upgrading existing modules must be requestedexplicitly:
More information and resources regarding pip and its capabilities can befound in the Python Packaging User Guide.
Creation of virtual environments is done through the venv module.Installing packages into an active virtual environment uses the commands shownabove.
See also
These are quick answers or links for some common tasks.
pip in versions of Python prior to Python 3.4?¶Python only started bundling pip with Python 3.4. For earlier versions,pip needs to be “bootstrapped” as described in the Python PackagingUser Guide.
See also
Passing the --user option to python-mpipinstall will install apackage just for the current user, rather than for all users of the system.
A number of scientific Python packages have complex binary dependencies, andaren’t currently easy to install using pip directly. At this point intime, it will often be easier for users to install these packages byother meansrather than attempting to install them with pip.
See also
On Linux, Mac OS X, and other POSIX systems, use the versioned Python commandsin combination with the -m switch to run the appropriate copy ofpip:
Appropriately versioned pip commands may also be available.
On Windows, use the py Python launcher in combination with the -mswitch:
On Linux systems, a Python installation will typically be included as partof the distribution. Installing into this Python installation requiresroot access to the system, and may interfere with the operation of thesystem package manager and other components of the system if a componentis unexpectedly upgraded using pip.
On such systems, it is often better to use a virtual environment or aper-user installation when installing packages with pip.
It is possible that pip does not get installed by default. One potential fix is:
There are also additional resources for installing pip.
Python has typically relied heavily on source based distribution, with endusers being expected to compile extension modules from source as part ofthe installation process.
With the introduction of support for the binary wheel format, and theability to publish wheels for at least Windows and Mac OS X through thePython Packaging Index, this problem is expected to diminish over time,as users are more regularly able to install pre-built extensions ratherthan needing to build them themselves.
Some of the solutions for installing scientific softwarethat are not yet available as pre-built wheel files may also help withobtaining other binary extensions without needing to build them locally.
See also