Difference between revisions of "Python"

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| installed version      = 2.7.9
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| installed version      = 3.7.9 64-bits
 
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       | [[Workshop: Python for behavioural scientists|Python for behavioural scientists]]
 
       | [[Workshop: Python for behavioural scientists|Python for behavioural scientists]]
 
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[[wikipedia:Python_(programming_language)|Python]] is a general-purpose, high-level programming language. It is also a [[wikipedia:Python_%28genus%29|type of snake]] and it is also a rollercoaster, but one is arguably more relevant to your research than the others.
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[[wikipedia:Python_(programming_language)|Python]] is a general-purpose, high-level programming language. It is also a [[wikipedia:Python_%28genus%29|type of snake]] and a [[wikipedia:Python_%28Efteling%29|rollercoaster]], but one is arguably more relevant to your research than the others. <br/>
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On the lab computers, there is support for Spyder, PyCharm and [[Psychopy]].  
  
 
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==Psychopy==
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{{see |Psychopy}}
  
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Since Python version 2.7 has reached end of life since January first 2020, this version is no longer installed on the PCs in the labs. Standard is now: Python 3.7 64-bits.
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When your script fails to load in Psychopy, because you need packages that are not installed on our lab computers, please contact TSG.
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If you still have scripts written in Python2, the scripts should be upgraded to Python 3. Most changes are probably the print statements. Print statements should always have parentheses: print('some text')
 
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Key differences between Python 2 and Python 3 are here: https://sebastianraschka.com/Articles/2014_python_2_3_key_diff.html
 
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Psychopy 2020.2.10 has been installed in the root of the Python3.7 64-bit version. This is also the default version when 'psychopy' is typed from the command prompt. It is also the default that opens when a .py file is double-clicked. It also can be started by clicking the appropriate icon on the desktop.
 
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There is also a Psychopy 2020.2.10 installed on Python3.6 32-bits. This version has its own icon on the desktop and should be used when you are using a TOBII Eyetracker.
 
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When your script fails to load in Psychopy, because you need packages that are not installed on our labcomputers, please contact TSG.
 
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On the labcomputer, there is support for Spyder, PyCharm and Psychopy.
 
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'''The information below is outdated'''
 
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==Installation==
 
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===Windows (32 bit)===
 
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# Download the '''[https://www.python.org/downloads/ Win32 installer]'''
 
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# Double-click on the executable and follow the steps on your screen.
 
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==Configuration==
 
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=== Windows Environment Variables ===
 
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<pre>Computer --> Properties --> Advanced settings --> Environment Variables.</pre>
 
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[[image:python_env.jpg]]
 
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Add the following Path:
 
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<pre>C:\Python27;C:\Python27\Lib\site-packages\;C:\Python27\Scripts\;</pre>
 
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[[image:python_path.jpg]]
 
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[[image:python_path2.jpg]]
 
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===Package Management===
 
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==== pip ====
 
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After Python is installed, you can use [[wikipedia:Pip_(package_manager)|pip]] to install your required packages. '''pip is included with Python 2.7.9 or greater'''. For older versions, use the following steps to install:
 
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# Download [https://raw.github.com/pypa/pip/master/contrib/get-pip.py get-pip.py]
 
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# Execute get-pip by entering the following command: <code style="background-color:#000; color:#fff; padding:1px 3px;">python get-pip.py</code>
 
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To install a package, simply execute the following command: <code style="background-color:#000; color:#fff; padding:1px 3px;">c:\pip install PACKAGE_NAME</code><br/>
 
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Replace PACKAGE_NAME with the name of the package of choice.
 
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'''Note:''' By default, packages are installed in the following folder (Windows):
 
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<pre>C:\Python27\Lib\site-packages</pre>
 
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This location may differ if you have installed Python somewhere else.
 
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==== Setuptools ====
 
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For package management with setuptools, install setuptools using the following command: <code style="background-color:#000; color:#fff; padding:1px 3px;">pip install -U setuptools</code>
 
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To install a package, simply execute the following command: <code style="background-color:#000; color:#fff; padding:1px 3px;">c:\easy_install PACKAGE_NAME</code><br/>
 
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Replace PACKAGE_NAME with the name of the package of choice.
 
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===List of Python Packages===
 
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{| class="wikitable"
 
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|-
 
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! Python Library 
 
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! Description
 
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! Installed
 
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! Installer Type
 
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! URL
 
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|-
 
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| PIL || Python Image Library || style="background-color:#9F9;" | Yes || Package Manager || http://www.pythonware.com/products/pil/ 
 
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|-
 
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| SciPy || Python-based ecosystem of open-source software for mathematics, science, and engineering. || style="background-color:#9F9;" | Yes || Package Manager || http://www.scipy.org/install.html
 
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|-
 
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| PyWin32 || Python Extensions for Windows || style="background-color:#9F9;" | Yes || Windows Installer || http://sourceforge.net/projects/pywin32/files/pywin32/
 
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|-
 
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| PySerial || Serial access for Python || style="background-color:#9F9;" | Yes || Windows Installer || https://pypi.python.org/pypi/pyserial
 
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|-
 
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| wxPython || GUI Toolkit for Python || style="background-color:#9F9;" | Yes || Windows Installer || http://www.wxpython.org/download.php#msw
 
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|-
 
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| matplotlib || 2D plotting library for Python || style="background-color:#9F9;" | Yes || Windows Installer  || http://matplotlib.org/downloads.html
 
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|-
 
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| pyo || dedicated Python module for digital signal processing || style="background-color:#9F9;" | Yes || Windows Installer || http://ajaxsoundstudio.com/software/pyo/
 
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|-
 
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| Opencv2 || Open Source Computer Vision is a library of programming functions mainly aimed at real-time computer vision || style="background-color:#9F9;" | Yes || Windows Installer || http://opencv.org/
 
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|-
 
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| PyQt ||  Python binding of the cross-platform GUI toolkit Qt || style="background-color:#9F9;" | Yes || Windows Installer || http://www.riverbankcomputing.co.uk/software/pyqt/download5
 
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|-
 
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| PyQtGraph || Scientific Graphics and GUI Library for Python || style="background-color:#9F9;" | Yes || Windows Installer || http://www.pyqtgraph.org/
 
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|-
 
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| LXML || library for processing XML and HTML in the Python language || style="background-color:#9F9;" | Yes  || Package Manager || http://lxml.de/
 
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|-
 
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| PyGame || Pygame is a set of Python modules designed for writing games. || style="background-color:#9F9;" | Yes  || Windows installer || http://pygame.org/news.html
 
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|-
 
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| PANDAS || Python Data Analysis Library || style="background-color:#9F9;" | Yes  || Package Manager || http://pandas.pydata.org/
 
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|-
 
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| Expyriment || A Python library for congnitive and neuroscientific experiments. || style="background-color:#9F9;" | Yes  || Package Manager || http://www.expyriment.org/
 
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|-
 
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| Pyparse || Parse text files in an easier and more maintainable manner || style="background-color:#9F9;" | Yes  || Package Manager || https://pypi.python.org/pypi/PyParse/1.1.7
 
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|-
 
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| AVbin || media decoding/decompression library || style="background-color:#9F9;" | Yes || Windows Installer || https://code.google.com/p/avbin/
 
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|-
 
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| Pyglet || a cross-platform windowing and multimedia library for Python. || style="background-color:#9F9;" | Yes  || Manual Install || [[File:Pyglet-1.1.4.zip]]
 
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|-
 
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| FreeType || Library to Render Fonts || style="background-color:#9F9;" | Yes  || Manual Install || [[file:freetype.zip]]
 
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|-
 
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| Psignifit || || || ||
 
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|-
 
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| Psychopy || Psychology Software in Python || style="background-color:#9F9;" | Yes  || Package Manager || http://www.psychopy.org
 
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|}
 
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For Psychopy dependancies, check the [[Psychopy]] page.
 
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=== Windows Handlers ===
 
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Check the Handlers by opening the Windows registry editor.
 
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<syntaxhighlight lang="reg" overflow:auto;">
 
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Windows Registry Editor Version 5.00
 
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[HKEY_CLASSES_ROOT\Python.CompiledFile\shell\open\command]
 
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@="\"C:\\Python27\\python.exe\" \"%1\" %*"
 
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Windows Registry Editor Version 5.00
 
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[HKEY_CLASSES_ROOT\Python.File\shell\open\command]
 
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@="\"C:\\Python27\\python.exe\" \"%1\" %*"
 
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Windows Registry Editor Version 5.00
 
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[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Python.CompiledFile\shell\open\command]
 
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@="\"C:\\Python27\\python.exe\" \"%1\" %*"
 
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Windows Registry Editor Version 5.00
 
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[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Python.File\shell\open\command]
 
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@="\"C:\\Python27\\python.exe\" \"%1\" %*"
 
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</syntaxhighlight>
 
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=== Python DLL Files ===
 
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* '''C:\Python27\DLLs\'''
 
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* Path Within the script.
 
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* '''C:\Windows\System32''' or
 
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* '''C:\Windows\SysWOW64'''
 
  
 
== Usage ==
 
== Usage ==
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You should see the following result:
 
You should see the following result:
  
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<syntaxhighlight lang="matlab" overflow:auto;">
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<syntaxhighlight lang="python" overflow:auto;">
 
number of argument:  2
 
number of argument:  2
 
  argv[0]: ./testArgs.py
 
  argv[0]: ./testArgs.py
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*[[Workshop: Python for social scientists]]
 
*[[Workshop: Python for social scientists]]
 
<!--
 
<!--
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*[[Workshop: Python for behavioural scientists]]
 
 
  ==References==
 
  ==References==
 
<references /> -->
 
<references /> -->

Latest revision as of 15:42, 23 April 2024

Python
Python(tm)
Installed version3.7.9 64-bits
Development statusActive
Written inPython
Websitepython.org

Python is a general-purpose, high-level programming language. It is also a type of snake and a rollercoaster, but one is arguably more relevant to your research than the others.
On the lab computers, there is support for Spyder, PyCharm and Psychopy.


Psychopy

Template:See

When your script fails to load in Psychopy, because you need packages that are not installed on our lab computers, please contact TSG.

Usage

Example: TestArgs.py

Execute the following script within the commandline (CMD): python testArgs.py a.
You should see the following result: 

number of argument:  2
 argv[0]: ./testArgs.py
 argv[1]: a

See Also

External Links

Retrieved from "http://tsgdoc.socsci.ru.nl/index.php?title=Python&oldid=5812"