Source code for expyriment

"""A Python library for cognitive and neuroscientific experiments.

Expyriment is an open-source and platform independent light-weight Python
library for designing and conducting timing-critical behavioural and
neuroimaging experiments. The major goal is to provide a well-structured
Python library for a script-based experiment development with a high priority
on the readability of the resulting programme code. It has been tested
extensively under Linux and Windows.

Expyriment is an all-in-one solution, as it handles the stimulus presentation,
recording of I/O events, communication with other devices and the collection
and preprocessing of data. It offers furthermore a hierarchical design
structure, which allows an intuitive transition from the experimental design
to a running programme. It is therefore also suited for students as well as
experimental psychologists and neuroscientists with little programming
experience.

Website: http://www.expyriment.org

"""

__author__ = 'Florian Krause <florian@expyriment.org>, \
Oliver Lindemann <oliver@expyriment.org>'
__version__ = '0.6.2+'
__revision__ = 'df3f5391d9d2+'
__date__ = 'Sun Apr 14 12:55:36 2013 +0200'


import sys as _sys


def get_version():
    """
    Return version information about Expyriment and Python.

    Returns
    -------
    version_info : str

    Notes
    -----
    For more detailed information see expyriment.get_system_info().

    """

    pv = "{0}.{1}.{2}".format(_sys.version_info[0],
                              _sys.version_info[1],
                              _sys.version_info[2]) #no use of .major, .minor to ensure MacOS compatibility
    return "{0} (Revision {1}; Python {2})".format(__version__, \
                               __revision__, pv)



if not(_sys.version_info[0] == 2 and (_sys.version_info[1] == 6 or
                                         _sys.version_info[1] == 7)):
    raise ImportError("Expyriment {0} ".format(__version__) +
                      "is not compatible with Python {0}.{1}.".format(
                                                    _sys.version_info[0],
                                                    _sys.version_info[1]) +
                      "\nPlease use Python 2.6 or Python 2.7.")
else:
    print("Expyriment {0} ".format(get_version()))

try:
    import pygame as _pygame
    if _pygame.vernum < (1, 9, 1):
        raise ImportError("Expyriment {0} ".format(__version__) +
                      "is not compatible with Pygame {0}.{1}.{2}.".format(
                                                    _pygame.vernum) +
                      "\nPlease install Pygame 1.9.")
except:
    raise ImportError("Expyriment {0} ".format(__version__) +
                      "needs the package 'Pygame')." +
                      "\nPlease install Pygame 1.9.")

try:
    import OpenGL as _OpenGL
    if int(_OpenGL.version.__version__[0]) < 3:
        raise ImportError("Expyriment {0} ".format(__version__) +
                    "is not compatible with PyOpenGL {0}.{1}.{2}.".format(
                        int(_OpenGL.version.__version__[0]),
                        int(_OpenGL.version.__version__[2]),
                        int(_OpenGL.version.__version__[4]),
                          ) +
                      "\nPlease install PyOpenGL 3.0.")
except:
    raise ImportError("Expyriment {0} ".format(__version__) +
                      "needs the package 'PyOpenGL')." +
                      "\nPlease install PyOpenGL 3.0.")

import design
_active_exp = design.Experiment("None")
import control
import stimuli
import io
import misc
from _api_reference_tool import show_documentation
from _get_system_info import get_system_info
import _importer_functions


exec(_importer_functions.post_import_hook())