"""
Read data from file 'response.txt' and parse into arrays.
You should first run 'write' demo to create this file.
"""
import viz

viz.go()

import vizinfo
vizinfo.InfoPanel()

time    =   []                     # defines empty array
key     =   []                     # defines empty array

file = open('response.txt', 'r')    # opens file 'stimulus.txt'

for line in file:                  # this loop works it's way
                                    # through file, line by line.
    s = line.split()               # each line is split in it's
                                    # components.

    time.append(float(s[0]))        # the first component is
                                    # assigned to time,
    key.append(s[1])                # the second to type

file.close()                       # the stimulus file is closed

print(time                         )# shows the resulting arrays
print(key                          )# in interactive window