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Listen for pg_notify with Psycopg2
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import select | |
import datetime | |
import psycopg2 | |
import psycopg2.extensions | |
conn = psycopg2.connect(database="postgres", user="vagrant") | |
#conn.set_isolation_level(psycopg2.extensions.ISOLATION_LEVEL_AUTOCOMMIT) | |
curs = conn.cursor() | |
curs.execute("LISTEN test;") | |
curs.execute("LISTEN lol;") | |
seconds_passed = 0 | |
print "Waiting for notifications on channel 'test'" | |
while 1: | |
conn.commit() | |
if select.select([conn],[],[],5) == ([],[],[]): | |
seconds_passed += 5 | |
print "{} seconds passed without a notification...".format(seconds_passed) | |
else: | |
seconds_passed = 0 | |
conn.poll() | |
conn.commit() | |
while conn.notifies: | |
notify = conn.notifies.pop() | |
print "Got NOTIFY:", datetime.datetime.now(), notify.pid, notify.channel, notify.payload |
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