Python

Python

300px
Installed version	2.7.9
Development status	Active
Written in	Python
Website	python.org

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.

Installation

Windows (32 bit)

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

Configuration

Windows Environment Variables

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

Add the following Path:

C:\Python27;C:\Python27\Lib\site-packages\;C:\Python27\Scripts\;

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):

C:\Python27\Lib\site-packages

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

Setup-Tools

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
[HKEY_CLASSES_ROOT\Python.CompiledFile\shell\open\command]
@="\"C:\\Python27\\python.exe\" \"%1\" %*"

Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\Python.File\shell\open\command]
@="\"C:\\Python27\\python.exe\" \"%1\" %*"

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Python.CompiledFile\shell\open\command]
@="\"C:\\Python27\\python.exe\" \"%1\" %*"

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Python.File\shell\open\command]
@="\"C:\\Python27\\python.exe\" \"%1\" %*"

Python DLL Files

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

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

• Psychopy

External Links

• Official Website