tentei de todas as formas instalar o mitmf mas nao consegui

root@kali:~# git clone https://github.com/byt3bl33d3r/MITMf
fatal: destination path 'MITMf' already exists and is not an empty directory.
root@kali:~# cd MITMf && git submodule init && git submodule update --recursive
Submodule 'libs/bdfactory' (https://github.com/secretsquirrel/the-backdoor-factory) registered for path 'libs/bdfactory'
Cloning into '/root/MITMf/libs/bdfactory'...
Submodule path 'libs/bdfactory': checked out 'd2f352139f23ed642fa174211eddefb95e6a8586'
root@kali:~/MITMf# pip install -r requirements.txt
bash: pip: command not found
root@kali:~/MITMf# python mitmf.py --help
Traceback (most recent call last):
  File "mitmf.py", line 29, in <module>
    import core.responder.settings as settings
  File "/root/MITMf/core/responder/settings.py", line 24, in <module>
    from core.configwatcher import ConfigWatcher
  File "/root/MITMf/core/configwatcher.py", line 20, in <module>
    import pyinotify
ImportError: No module named pyinotify