pyRpc
A simple remote procedure call module using ZeroMQ
Remote Procedure Call support, for exposing local function as public services, and calling public services on remote applications.
Wraps around ZeroMQ for messaging. http://www.zeromq.org/
This is a very basic module that allows you to create an application which exports various functions as services, and then to have client apps call these services almost like a native python call.
Requirements
This module uses ZeroMQ for the messaging functionality: http://www.zeromq.org/ It should get installed by the setup.py installation process. But on some systems you may need to install this seperately.
The GUI-based examples require PyQt4: http://www.riverbankcomputing.co.uk/software/pyqt/download http://qt.nokia.com/downloads
Install
Download and:
>>> python setup.py install
or
>>> pip install pyRpc
or
>>> easy_install pyRpc
Basic Example
Exporting functions as services (server)
import time
from pyRpc import PyRpc
def add(a, b):
""" Returns a + b """
return a+b
def favoriteColor():
""" Tell you our favorite color """
return "red"
myRpc = PyRpc("com.myCompany.MyApplication")
time.sleep(.1)
myRpc.publishService(add)
myRpc.publishService(favoriteColor)
myRpc.start()
try:
while True:
time.sleep(1)
except KeyboardInterrupt:
myRpc.stop()Calling remote services from a client
import time
from pyRpc import RpcConnection
def response(resp):
print "Got response:", resp
print "1 + 2 =", resp.result
remote = RpcConnection("com.myCompany.MyApplication")
time.sleep(.1)
# we can ask the remote server what services are available
resp = remote.availableServices()
for service in resp.result:
print "\nService: %(service)s \nDescription: %(doc)s \nUsage: %(format)s\n" % service
# calls remote add() and does not wait. Result will be returned to response()
remote.call("add", args=(1, 2), callback=response)
# blocks while waiting for a response
resp = remote.call("favoriteColor")
print "Favorite color:", resp.result
time.sleep(1)
remote.close()
time.sleep(1)
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