added Renata files and developed beauty output

other/Renata/dbconnection.py

@@ -0,0 +1,34 @@
+# Установка соединения с базой данных
+# (параметры передаются через класс конфиг).
+import psycopg2
+
+class DbConnection:
+
+    def __init__(self, config):
+        self.dbname = config.dbname
+        self.user = config.user
+        self.password = config.password
+        self.host = config.host
+        self.prefix = config.dbtableprefix
+        self.conn = psycopg2.connect(dbname = self.dbname,
+                                    user = self.user, 
+                                    password = self.password,
+                                    host = self.host)
+
+    def __del__(self):
+        if self.conn:
+            self.conn.close()
+
+    def test(self):
+        cur = self.conn.cursor()
+        cur.execute("DROP TABLE IF EXISTS test CASCADE")
+        cur.execute("CREATE TABLE test(test integer)")
+        cur.execute("INSERT INTO test(test) VALUES(1)")
+        self.conn.commit()
+        cur.execute("SELECT * FROM test")
+        result = cur.fetchall()
+        cur.execute("DROP TABLE test")
+        self.conn.commit()
+        return (result[0][0] == 1)
+        
+