Difference between revisions of "Python"

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! Version
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| numpy || (version 0.9.6 or greater)
| numpy || (version 0.9.6 or greater)

Revision as of 11:42, 7 August 2015

Installed version2.7.9
Development statusActive
Written inPython

Python is a general-purpose, high-level programming language. It is also a type of snake, but one is arguably more suitable for behavioral research than the other.


Windows (32 bit)

  1. Download the Win32 installer
  2. Double-click on the executable and follow the steps on your screen.


Windows Environment Variables

Computer --> Properties --> Advanced settings --> Environment Variables.

Python env.jpg

Add the following Path:


Python path.jpg

Python path2.jpg

Package Management

After Python is installed, you can use pip to install your required packages. pip is included with Python 2.7.9. For older versions, use the following steps to install:

  1. Download get-pip.py
  2. Execute get-pip by entering the following command: python get-pip.py

To install a package, simply execute the following command: c:\pip install PACKAGE_NAME
Replace PACKAGE_NAME with the name of the package of choice.

Note: By default, packages are installed in the following folder (Windows):


This location may differ if you have installed Python somewhere else.

List of Python Packages

Psychopy Essential Packages

Python Library Version
numpy (version 0.9.6 or greater)
scipy (version 0.4.8 or greater)
pyglet (version 1.1.4, not version 1.2)
wxPython (version 2.8.10 or 2.8.11, not 2.9)
Python Imaging Library (sudo easy_install PIL)
matplotlib (for plotting and fast polygon routines)
lxml (needed for loading/saving builder experiment files)
openpyxl (for loading params from xlsx files)
pyo (sound, version 0.6.2 or higher, compile with —-no-messages)

Installed packages

Python Library Description Installed Installer Type URL
PIL Python Image Library Yes Package Manager http://www.pythonware.com/products/pil/
SciPy Python-based ecosystem of open-source software for mathematics, science, and engineering. Yes Package Manager http://www.scipy.org/install.html
PyWin32 Python Extensions for Windows Yes Windows Installer http://sourceforge.net/projects/pywin32/files/pywin32/
PySerial Serial access for Python Yes Windows Installer https://pypi.python.org/pypi/pyserial
wxPython GUI Toolkit for Python Yes Windows Installer http://www.wxpython.org/download.php#msw
matplotlib 2D plotting library for Python Yes Windows Installer http://matplotlib.org/downloads.html
pyo dedicated Python module for digital signal processing Yes Windows Installer http://ajaxsoundstudio.com/software/pyo/
Opencv2 Open Source Computer Vision is a library of programming functions mainly aimed at real-time computer vision Yes Windows Installer http://opencv.org/
PyQt Python binding of the cross-platform GUI toolkit Qt Yes Windows Installer http://www.riverbankcomputing.co.uk/software/pyqt/download5
PyQtGraph Scientific Graphics and GUI Library for Python Yes Windows Installer http://www.pyqtgraph.org/
LXML library for processing XML and HTML in the Python language Yes Package Manager http://lxml.de/
PyGame Pygame is a set of Python modules designed for writing games. Yes Windows installer http://pygame.org/news.html
PANDAS Python Data Analysis Library Yes Package Manager http://pandas.pydata.org/
Expyriment A Python library for congnitive and neuroscientific experiments. Yes Package Manager http://www.expyriment.org/
Pyparse Parse text files in an easier and more maintainable manner Yes Package Manager https://pypi.python.org/pypi/PyParse/1.1.7
AVbin media decoding/decompression library Yes Windows Installer https://code.google.com/p/avbin/
Pyglet a cross-platform windowing and multimedia library for Python. Yes Manual Install File:Pyglet-1.1.4.zip
FreeType Library to Render Fonts Yes Manual Install File:Freetype.zip
Psychopy Psychology Software in Python Yes Package Manager http://www.psychopy.org


To install setup-tools, execute the following command in CMD: pip install -U setuptools

Windows Handlers

Check the Handlers by opening the Windows registry editor.

Windows Registry Editor Version 5.00
@="\"C:\\Python27\\python.exe\" \"%1\" %*"

Windows Registry Editor Version 5.00
@="\"C:\\Python27\\python.exe\" \"%1\" %*"

Windows Registry Editor Version 5.00
@="\"C:\\Python27\\python.exe\" \"%1\" %*"

Windows Registry Editor Version 5.00
@="\"C:\\Python27\\python.exe\" \"%1\" %*"

Python DLL Files

  • C:\Python27\DLLs\
  • Path Within the script.
  • C:\Windows\System32 or
  • C:\Windows\SysWOW64


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