39 lines
859 B
Python
39 lines
859 B
Python
#!/usr/bin/python
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import psycopg2
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from config import config
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def connect():
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""" Connect to the PostgreSQL database server """
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conn = None
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try:
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# read connection parameters
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params = config()
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# connect to the PostgreSQL server
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print('Connecting to the PostgreSQL database...')
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conn = psycopg2.connect(**params)
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# create a cursor
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cur = conn.cursor()
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# execute a statement
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print('PostgreSQL database version:')
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cur.execute('SELECT version()')
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# display the PostgreSQL database server version
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db_version = cur.fetchone()
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print(db_version)
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# close the communication with the PostgreSQL
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cur.close()
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except (Exception, psycopg2.DatabaseError) as error:
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print(error)
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finally:
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if conn is not None:
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conn.close()
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print('Database connection closed.')
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if __name__ == '__main__':
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connect()
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