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https://github.com/pyusb/pyusb

Easy USB access for Python
https://github.com/pyusb/pyusb

hardware python usb

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Easy USB access for Python

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README 

        
==================================

PyUSB – Easy USB access for Python

==================================



Introduction

------------



PyUSB provides for easy access to the host machine's Universal Serial Bus (USB)

system for Python 3.



Until 0.4 version, PyUSB used to be a thin wrapper over libusb. Starting with

the 1.0 version, things changed considerably: now PyUSB is an API rich, backend

neutral Python USB module easy to use.



Documentation

-------------



The best way to get started with PyUSB is to read the following documents:



* `Tutorial`_

* `FAQ`_



For more detailed information, PyUSB's API documentation, as with most Python

modules, is based on Python doc strings and can be manipulated by tools such as

pydoc [1]_::



    $ python -m pydoc usb



The `libusb 1.0 documentation`_ is also a recommended read, especially when

using that backend (more on this below).



Requirements and platform support

---------------------------------



PyUSB is primarily developed and tested on Linux and Windows, but it should

also work fine on any platform running Python >= 3.8, ctypes and at least one

of the built-in backends.



PyUSB supports `libusb 1.0`_, libusb 0.1 and OpenUSB. Of those, libusb 1.0 is

currently recommended for most use cases.



*On Linux and BSD,* these will generally be available on the distribution's

official repositories.



*On macOS,* libusb 1.0 can easily be installed through Homebrew::



    $ brew install libusb



*On Windows,* `pyocd/libusb-package`_ is a convenient [2]_ [3]_ way to

provide the necessary libusb 1.0 DLL, as well as a suitable PyUSB backend and

a easy to use wrapper over PyUSB's ``find()`` API::



    # with pure PyUSB

    for dev in usb.core.find(find_all=True):

        print(dev)



    # with pyocd/libusb-package

    for dev in libusb_package.find(find_all=True):

        print(dev)



Alternatively, the libusb 1.0 DLL can be manually copied from an official

release archive into the ``C:\Windows\System32`` system folder, or packaged

together with the complete application.



Installing

----------



PyUSB is generally installed through pip [1]_::



    # the latest official release

    python -m pip install pyusb



    # install a specific version (e.g. 1.2.1)

    python -m pip install pyusb==1.2.1



    # the latest snapshop from the official git repository

    python -m pip install pyusb git+https://github.com/pyusb/pyusb#egg=pyusb



Most Linux distributions also package PyUSB in their official repositories.



Getting help

------------



If you have a question about PyUSB:



* consult the `FAQ`_;

* post a question in the `Q&A section`_;

* write to the `PyUSB mailing list`_.



To report a bug or propose a new feature, use our `issue tracker`_.  But please

search the database before opening a new issue.



Footnotes

---------



.. [1] On systems that still default to Python 2, replace ``python`` with

   ``python3``.



.. [2] Unlike PyUSB, pyocd/libusb-package uses the more restrictive Apache 2.0

   license.



.. [3] While pyocd/libusb-package supports platforms other than Windows,

   there are advantages to sticking to a system-provided libusb, if it is

   available and the platform has a robust package manager (e.g. Linux, BSD,

   macOS with Homebrew).



.. _FAQ: https://github.com/pyusb/pyusb/blob/master/docs/faq.rst

.. _PyUSB mailing list: https://sourceforge.net/projects/pyusb/lists/pyusb-users

.. _Q&A section: https://github.com/pyusb/pyusb/discussions/categories/q-a

.. _Tutorial: https://github.com/pyusb/pyusb/blob/master/docs/tutorial.rst

.. _issue tracker: https://github.com/pyusb/pyusb/issues

.. _libusb 1.0 documentation: https://libusb.info/

.. _libusb 1.0: https://github.com/libusb/libusb

.. _pyocd/libusb-package: https://github.com/pyocd/libusb-package/