import sys
...
...
def closeApplication():
    s = input('\nPress <Enter> for close Application')
    sys.exit(0)
...
...

pyinstaller.exe --onefile KoboShelf.py

C:\Stuff>type KoboShelf.spec
# -*- mode: python -*-

block_cipher = None


a = Analysis(['KoboShelf.py'],
             pathex=['C:\\Stuff'],
             binaries=None,
             datas=None,
             hiddenimports=[],
             hookspath=[],
             runtime_hooks=[],
             excludes=[],
             win_no_prefer_redirects=False,
             win_private_assemblies=False,
             cipher=block_cipher)
pyz = PYZ(a.pure, a.zipped_data,
             cipher=block_cipher)
exe = EXE(pyz,
          a.scripts,
          a.binaries,
          a.zipfiles,
          a.datas,
          name='KoboShelf',
          debug=False,
          strip=False,
          upx=True,
          console=True )

C:\Stuff>

C:\Stuff\dist>KoboShelf.exe
Can't find Kobo eReader.
Check mount Reader or use command line switches

Press <Enter> for close Application

Traceback (most recent call last):
  File "KoboShelf.py", line 198, in <module>
  File "KoboShelf.py", line 157, in main
  File "KoboShelf.py", line 91, in detectUSBDrive
  File "KoboShelf.py", line 34, in closeApplication
NameError: name 'exit' is not defined
Failed to execute script KoboShelf

 raise SystemExit()

#!/usr/bin/python3