---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
<ipython-input-20-b5bd46a7bad0> in <module>
----> 1 get_ipython().system('pip install bentoml')
      2 get_ipython().system('pip install sklearn pandas numpy')

~/anaconda3/lib/python3.7/site-packages/IPython/core/interactiveshell.py in system_piped(self, cmd)
   2415         # a non-None value would trigger :func:`sys.displayhook` calls.
   2416         # Instead, we store the exit_code in user_ns.
-> 2417         self.user_ns['_exit_code'] = system(self.var_expand(cmd, depth=1))
   2418 
   2419     def system_raw(self, cmd):

~/anaconda3/lib/python3.7/site-packages/IPython/utils/_process_posix.py in system(self, cmd)
    154                 child = pexpect.spawnb(self.sh, args=['-c', cmd]) # Pexpect-U
    155             else:
--> 156                 child = pexpect.spawn(self.sh, args=['-c', cmd])  # Vanilla Pexpect
    157             flush = sys.stdout.flush
    158             while True:

~/anaconda3/lib/python3.7/site-packages/pexpect/pty_spawn.py in __init__(self, command, args, timeout, maxread, searchwindowsize, logfile, cwd, env, ignore_sighup, echo, preexec_fn, encoding, codec_errors, dimensions, use_poll)
    202             self.name = '<pexpect factory incomplete>'
    203         else:
--> 204             self._spawn(command, args, preexec_fn, dimensions)
    205         self.use_poll = use_poll
    206 

~/anaconda3/lib/python3.7/site-packages/pexpect/pty_spawn.py in _spawn(self, command, args, preexec_fn, dimensions)
    301 
    302         self.ptyproc = self._spawnpty(self.args, env=self.env,
--> 303                                      cwd=self.cwd, **kwargs)
    304 
    305         self.pid = self.ptyproc.pid

~/anaconda3/lib/python3.7/site-packages/pexpect/pty_spawn.py in _spawnpty(self, args, **kwargs)
    312     def _spawnpty(self, args, **kwargs):
    313         '''Spawn a pty and return an instance of PtyProcess.'''
--> 314         return ptyprocess.PtyProcess.spawn(args, **kwargs)
    315 
    316     def close(self, force=True):

~/anaconda3/lib/python3.7/site-packages/ptyprocess/ptyprocess.py in spawn(cls, argv, cwd, env, echo, preexec_fn, dimensions)
    224 
    225         if use_native_pty_fork:
--> 226             pid, fd = pty.fork()
    227         else:
    228             # Use internal fork_pty, for Solaris

~/anaconda3/lib/python3.7/pty.py in fork()
     95 
     96     master_fd, slave_fd = openpty()
---> 97     pid = os.fork()
     98     if pid == CHILD:
     99         # Establish a new session.

OSError: [Errno 12] Cannot allocate memory