This is the server side of a recipe that shows how the use websocket, a tool written in Go, that sort of daemonizes a program that reads from standard input and writes to standard output, thus making it into a WebSocket server.
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Copy to clipboard1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | An example program that writes to STDOUT:
# psutil_disk_usage.py
import string
from time import sleep
import psutil
print "Disk Space (MB)".rjust(46)
print " ".rjust(25) + "Total".rjust(10) + "Used".rjust(10) + "Free".rjust(10)
for i in range(5):
du = psutil.disk_usage('/')
print str(i + 1).rjust(25) + str(du.total/1024/1024).rjust(10) + str(du.used/1024/1024).rjust(10) + str(du.free/1024/1024).rjust(10)
sleep(2)
And a websocketd command that makes the above program into a WebSocket server running on port 8080:
websocketd --port=8080 python psutil_disk_usage.py
You have to give the command:
set PYTHONUNBUFFRED=true
before the above websocketd command is given.
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A more detailed description is given here in [this blog post](http://jugad2.blogspot.in/2014/01/use-websockets-and-python-for-web-based.html)
Some issue with the markdown syntax in the last line of the above description, sorry - it didn't render the link to the blog post correctly.