import viz

viz.go()

import vizinfo
vizinfo.add('When you press a keyboard button, the script will output the \ncurrent time and the button pressed to the file \'response.txt\'')

# Opens file 'response.txt' in write mode
file = open('testresponse.txt', 'w')

# Define a function that saves data
def SaveData(currenttime, key):
# Create the output string
out = 't:' + str(currenttime) + '\t' + '"' + key + '"' + '\n'

# Write the string to the output file
file.write(out)

# Makes sure the file data is really written to the harddrive
file.flush()
print out

# Define a function that is called every time a keyboard button is pressed
def mykeyboard(key):
# Calls the function SaveData and hands it the current time and key
SaveData(viz.tick(),key)

# Defines a callback for keyboard events
viz.callback(viz.KEYDOWN_EVENT, mykeyboard)

import viz
import viztask

viz.go()
keyDisplay = viz.addText( 'key pressed: ', viz.SCREEN , pos=(0.25,0.5,0) )

def mykeyinput():
global k
while True:
k=yield viztask.waitKeyDown(None)
ShowData(k)
viztask.schedule(mykeyinput)

def ShowData(k):
global data
data = "Key '"+k.key+"' was pressed at time",k.time
print data
kpress = 'Key " '+ k.key+' "'
keyDisplay.message(kpress)