first test

config.py

@@ -0,0 +1,21 @@
+#!/usr/bin/python 
+from configparser import ConfigParser 
+  
+  
+def config(filename='database.ini', section='postgresql'): 
+    # create a parser 
+    parser = ConfigParser() 
+    # read config file 
+    parser.read(filename) 
+  
+    # get section, default to postgresql 
+    db = {} 
+    if parser.has_section(section): 
+        params = parser.items(section) 
+        for param in params: 
+            db[param[0]] = param[1] 
+    else: 
+        raise Exception('Section {0} not found in the {1} file'.format(section, filename)) 
+  
+    return db
+

database.ini

@@ -0,0 +1,6 @@
+[postgresql]
+host=192.168.1.67
+database=test
+user=test
+password=test
+port=5432

main.py

@@ -0,0 +1,38 @@
+#!/usr/bin/python 
+import psycopg2 
+from config import config 
+
+def connect(): 
+	""" Connect to the PostgreSQL database server """
+	conn = None
+	try: 
+		# read connection parameters 
+		params = config() 
+
+		# connect to the PostgreSQL server 
+		print('Connecting to the PostgreSQL database...') 
+		conn = psycopg2.connect(**params) 
+		
+		# create a cursor 
+		cur = conn.cursor() 
+		
+	# execute a statement 
+		print('PostgreSQL database version:') 
+		cur.execute('SELECT version()') 
+
+		# display the PostgreSQL database server version 
+		db_version = cur.fetchone() 
+		print(db_version) 
+		
+	# close the communication with the PostgreSQL 
+		cur.close() 
+	except (Exception, psycopg2.DatabaseError) as error: 
+		print(error) 
+	finally: 
+		if conn is not None: 
+			conn.close() 
+			print('Database connection closed.') 
+
+
+if __name__ == '__main__': 
+	connect()