http://nbviewer.ipython.org/urls/raw.github.com/jrjohansson/scientific-python-lectures/master/Lecture-4-Matplotlib.ipynb
ZIP A LIST INTO SUBGROUPS
izip(*[iter(l)]*size)
zip(*[imap(func)]*size)
http://stackoverflow.com/questions/4628290/pairs-from-single-listBETTER EXAMPLE CONTROLLING SSH WITH PEXPECT AND PXSSH
#!/usr/bin/env python
import pxssh
def getLine(password="password", hostname="host"):
try:
s = pxssh.pxssh()
username = "root"
s.login (hostname, username, password)
s.sendline ("echo 'Hello World'") # run a command
s.prompt() # match the prompt
line = s.before
s.logout()
return line
except pxssh.ExceptionPxssh, e:
print "pxssh failed on login."
print str(e)
print getLine()
EXAMPLE OF CONTROLLING SSH IN PURE PYTHON WITH CORE LIBS
#!/usr/bin/env python
import pty
import os
import sys
import time
pid,fd = pty.fork()
if pid==0:
os.execv("/usr/bin/ssh",["/usr/bin/ssh","root@host","echo 'Hello World!' | awk '{print $2}'"])
else:
password = 'password\n'
print "Child says",os.read(fd,1024).strip()
print "Child took",os.write(fd,password)
time.sleep(1)
print "Child says",os.read(fd,1024).strip()
#SSH uses pty instead of stdin to communicate
#http://www.gossamer-threads.com/lists/python/python/56425
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