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## Contact support@pubnub.com for all questions
#### [PubNub](http://www.pubnub.com) Real-time Data Network
##### Standalone Python Client
#### Init
```
pubnub = Pubnub(publish_key="demo", subscribe_key="demo", ssl_on=False)
```
#### PUBLISH
```
channel = 'hello_world'
message = 'Hello World !!!'
# Synchronous usage
print pubnub.publish(channel='hello_world', message='Hello World !!!')
# Asynchronous usage
def callback(message):
print(message)
pubnub.publish(channel, message, callback=callback, error=callback)
```
#### SUBSCRIBE
```
# Listen for Messages
channel = 'hello_world'
def callback(message, channel):
print(message)
def error(message):
print("ERROR : " + str(message))
def connect(message):
print("CONNECTED")
def reconnect(message):
print("RECONNECTED")
def disconnect(message):
print("DISCONNECTED")
pubnub.subscribe(channel, callback=callback, error=callback,
connect=connect, reconnect=reconnect, disconnect=disconnect)
```
#### SUBSCRIBE Synchronous ( pre 3.5 version )
Runs in tight loop if callback return True.
Loop ends when callback return False
```
# Listen for Messages
channel = 'hello_world'
def callback(message):
print(message)
return True
pubnub.subscribe_sync(channel, callback=callback)
```
#### UNSUBSCRIBE
```
# Listen for Messages
channel = 'hello_world'
pubnub.unsubscribe(channel=channel)
```
#### PRESENCE
```
# Listen for Presence Event Messages
channel = 'hello_world'
def callback(message, channel):
print(message)
def error(message):
print("ERROR : " + str(message))
pubnub.presence(channel, callback=callback, error=callback)
```
#### HERE_NOW
```
# Get info on who is here right now!
channel = 'hello_world'
# Synchronous usage
print pubnub.here_now(channel)
# Asynchronous usage
def callback(message):
print(message)
pubnub.here_now(channel, callback=callback, error=callback)
```
#### HISTORY
```
# Synchronous usage
print pubnub.history(channel, count=2)
# Asynchronous usage
def callback(message):
print(message)
pubnub.history(channel, count=2, callback=callback, error=callback)
```
## Contact support@pubnub.com for all questions
|
