Raspberry Pi - GPIO in Python

Question

I am trying to get my Raspberry Pi's GPIO pins working, and I am following Tutorial: How to use your Raspberry Pi like an Arduino.

( I'm working through SSH running Raspbian.) I have successfully installed distribute.

When trying to install PIP, I get the error shown below.

How can I fix it?

    pi@DuckPi ~ $ sudo curl https://raw.github.com/pypa/pip/master/contrib/get-pip.py | python
      % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                     Dload  Upload   Total   Spent    Left  Speed
    100 85929  100 85929    0     0  89250      0 --:--:-- --:--:-- --:--:--  103k
    Downloading/unpacking pip
      Running setup.py egg_info for package pip

        warning: no files found matching '*.html' under directory 'docs'
        warning: no previously-included files matching '*.txt' found under directory 'docs/_build'
        no previously-included directories found matching 'docs/_build/_sources'
    Installing collected packages: pip
      Running setup.py install for pip
        error: could not create '/usr/local/lib/python2.7/dist-packages/pip': Permission denied
        Complete output from command /usr/bin/python -c "import setuptools;__file__='/home/pi/build/pip/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /tmp/pip-6djiJW-record/install-record.txt:
        running install

    running build

    running build_py

    running install_lib

    creating /usr/local/lib/python2.7/dist-packages/pip

    error: could not create '/usr/local/lib/python2.7/dist-packages/pip': Permission denied

    ----------------------------------------
    Command /usr/bin/python -c "import setuptools;__file__='/home/pi/build/pip/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --single-version-externally-managed --record /tmp/pip-6djiJW-record/install-record.txt failed with error code 1
    Storing complete log in /home/pi/.pip/pip.log

score 6 · Accepted Answer · answered Dec 14 '12 at 22:05

6

It's because curl was sudoed instead of python. You must do:

$ curl https://raw.github.com/pypa/pip/master/contrib/get-pip.py | sudo python

Or if you prefer, download the file and then run it:

$ curl -O https://raw.github.com/pypa/pip/master/contrib/get-pip.py
$ sudo python get-pip.py

answered Dec 14 '12 at 22:05

Hugo Lopes Tavares

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You can also use sudo easy_install3 -U pip to get the lastest version updated. – Simara May 22 '17 at 18:40

score 2 · Answer 2 · edited Sep 30 '14 at 13:09

2

I followed the same tutorial but instead of installing pip I just used:

sudo apt-get install rpi.gpio

The rest of the tutorial worked fine with a bit of searching around for some extra info. My whole experience of simple GPIO introduction the subject of my blog post Using Raspberry GPIO Interface which I hope helps too.

edited Sep 30 '14 at 13:09

Nishant

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answered Apr 11 '13 at 10:17

WorkingMatt

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score 2 · Answer 3 · answered Jun 01 '13 at 17:41

2

Nowadays the Debian packages are named:

python-rpi.gpio - Python GPIO module for Raspberry Pi
python3-rpi.gpio - Python 3 GPIO module for Raspberry Pi

answered Jun 01 '13 at 17:41

pors

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score 0 · Answer 4 · edited Nov 04 '15 at 05:22

0

You can also make use of the wiringPi library. It's very easy to use.

Here are the links:

For C: https://github.com/WiringPi/WiringPi

For Python: https://github.com/Gadgetoid/WiringPi2-Python

I hope it helps.

edited Nov 04 '15 at 05:22

Peter Mortensen

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answered Mar 03 '14 at 09:02

dhruvvyas90

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Raspberry Pi - GPIO in Python

4 Answers4