Template:PT3 PYTHON LNX TRM: Difference between revisions

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(Created page with "<div class="phd-slide-deck" data-deck="PT3_PYTHON_LNX_TRM"> <div class="phd-slide-deck-header"><h3>Language - Python</h3></div> <div class="phd-slides"> <div class="phd-slide"...")
 
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<h2>Requirements</h2>
<h2>Installing the Phidget Python Module</h2>


<p>First, make sure you have the following installed:</p>
<p>First, install <span>[https://www.python.org/downloads/ Python3]</span> if you haven't already.</p>


<p>● Phidgets Drivers for Linux (see Part 1 of this user guide)</p>
<p>Python 3.4+ includes PIP by default. To install the Phidget22 Python module with PIP, simply open the <b>Terminal</b> and enter the command:</p>


<p>● <span>[https://www.python.org/downloads/ Python]</span> (2.7 and 3.6+ are both compatible with Phidgets)</p>
<div class="phd-command-line"><code>pip3 install Phidget22</code></div>
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<div class="phd-slide">
<div class="phd-slide">
<h2>Installing the Phidget Python Module</h2>
<h2>Setting UDev Rules</h2>


<p>
<p>
Python versions 2.7.9+ and 3.4+ include PIP by default. To install the Phidget22 Python module with PIP, simply open the <b>Terminal</b> and enter the command:
By default, Linux will not allow regular users to access physical hardware, as a security feature. This means that you must grant yourself root privileges via
sudo to run Phidgets code.
</p>
</p>


<div class="phd-panels">
<div class="phd-command-line"><code>sudo python3 Python_Example.py</code></div>
<div class="phd-panel phd-flex-column-align-left phd-flex-column-justify-top">
<p>Python 2.x :</p>
<div class="phd-command-line"><code>pip install Phidget22</code></div>
</div>
<div class="phd-panel phd-flex-column-align-left phd-flex-column-justify-top">
<p>Python 3.x :</p>
<div class="phd-command-line"><code>pip3 install Phidget22</code></div>
</div>
</div>


<p>If you don't use PIP, follow the manual installation instructions on the next slide.</p>
<p>
</div>
To avoid having to use sudo every time, you can set up a rules file to allow it automatically using the vendor code for Phidget USB devices. Create a text file
 
called <b>99-libphidget22.rules</b> containing the following line:
<div class="phd-slide">
</p>
<h2>Installing the Phidget Python Module</h2>


<p>To install the Phidget22 Python module without PIP, you need to download it here:</p>
<div class="phd-command-line"><code>SUBSYSTEMS=="usb", ACTION=="add", ATTRS{idVendor}=="06c2", ATTRS{idProduct}=="00[3-a][0-f]", MODE="666"</code></div>


<p>● <span>[https://www.phidgets.com/downloads/phidget22/libraries/any/Phidget22Python.zip Phidget22 Python Module]</span></p>
<p>
 
Mode 666 means every user has permission to read and write to the specified devices. Next, move this file to <b>/etc/udev/rules.d</b>. Now you can run code that
<p>After unpacking the Phidget Python module, open the terminal at folder location and enter the following command:</p>
uses Phidgets as a regular user without sudo.
 
</p>
<div class="phd-command-line"><code>python setup.py install</code></div>
 
<p>This will build the module and install the Python module files into your site-packages directory.</p>
 
<div class="phd-lazy-image" data-src="https://www.phidgets.com/decks/PT3_PYTHON_LNX_TRM/-x180/50/Python_linux_install.png"></div>
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<p>To run the example, open the command prompt at the location of the example and enter the following command:</p>
<p>To run the example, open the command prompt at the location of the example and enter the following command:</p>


<div class="phd-panels">
<div class="phd-panel phd-flex-column-align-left phd-flex-column-justify-top">
<p>Python 2.x :</p>
<div class="phd-command-line"><code>python Python_Example.py</code></div>
</div>
<div class="phd-panel phd-flex-column-align-left phd-flex-column-justify-top">
<p>Python 3.x :</p>
<div class="phd-command-line"><code>python3 Python_Example.py</code></div>
<div class="phd-command-line"><code>python3 Python_Example.py</code></div>
</div>
</div>


<p>Success! Your program is now running with Phidgets!</p>
<p>Success! Your program is now running with Phidgets!</p>

Latest revision as of 21:42, 17 December 2024

Language - Python

Linux with Terminal

Welcome to using Phidgets with Python! By using Python, you will have access to the complete Phidget22 API, including events.

The terminal is the default environment to make Python programs in Linux, since it's available immediately after installing Python.

Installing the Phidget Python Module

First, install Python3 if you haven't already.

Python 3.4+ includes PIP by default. To install the Phidget22 Python module with PIP, simply open the Terminal and enter the command:

pip3 install Phidget22

Setting UDev Rules

By default, Linux will not allow regular users to access physical hardware, as a security feature. This means that you must grant yourself root privileges via sudo to run Phidgets code.

sudo python3 Python_Example.py

To avoid having to use sudo every time, you can set up a rules file to allow it automatically using the vendor code for Phidget USB devices. Create a text file called 99-libphidget22.rules containing the following line:

SUBSYSTEMS=="usb", ACTION=="add", ATTRS{idVendor}=="06c2", ATTRS{idProduct}=="00[3-a][0-f]", MODE="666"

Mode 666 means every user has permission to read and write to the specified devices. Next, move this file to /etc/udev/rules.d. Now you can run code that uses Phidgets as a regular user without sudo.

Finding Code Samples

To find the code sample to use for your Phidget, navigate to the Code Samples page and select your device from the drop-down menu.

Once you select your device, the code sample generator will give you a working code sample, and a selection of options to customize it to your needs.

Using the Code Samples

Click the Download Example button to download a Java file with the sample code:

Using the Code Samples

To run the example, open the command prompt at the location of the example and enter the following command:

python3 Python_Example.py

Success! Your program is now running with Phidgets!

What's Next?

Now that you've set up Phidgets in your programming environment, you should read our guide on Phidget Programming Basics to learn the fundamentals of programming with Phidgets.

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