Database Reference
In-Depth Information
Connecting with Python
In order to use PostgreSQL as database in your Python applications it is necessary to use
the
psycopg2
package and add it in the dependency file called
requirements.txt
.
The following is just a code sample to help you understand the concept;
$ pip install psycopg2
$ pip freeze > requirements.txt
Then, use the
psycopg2
package to connect the
DATABASE_URL
variable:
import psycopg2
import urlparse
import os
try:
urlparse.uses_netloc.append("postgres")
connection_params =
urlparse.urlparse(os.environ["DATABASE_URL"])
db_connection = psycopg2.connect(database =
connection_params.path[1:], user =
connection_params.username, password =
connection_params.password, host =
connection_params.hostname, port = connection_params.port)
except:
print "Database connection failed."
