[EN-1328] Corrected prints and changed to python3 in basic_usage.rst

Author: Aleksandr Salynskii

docs/basic_usage.rst

@@ -6,7 +6,7 @@ Basic Usage
 Import package
 ~~~~~~~~~~~~~~
 
-.. code:: ipython3
+.. code:: python3
 
     import dxfeed as dx
     from datetime import datetime  # for timed subscription
@@ -16,56 +16,56 @@ Configure and create connection with Endpoint class
 
 Create instance of Endpoint class which will connect provided address.
 
-.. code:: ipython3
+.. code:: python3
 
     endpoint = dx.Endpoint('demo.dxfeed.com:7300')
 
 Endpoint instance contains information about the connection,
 e.g. connection address or status
 
-.. code:: ipython3
+.. code:: python3
 
     print(f'Connected address: {endpoint.address}')
     print(f'Connection status: {endpoint.connection_status}')
 
 .. code:: text
 
-    demo.dxfeed.com:7300
-    Connected and authorized
+    Connected address: demo.dxfeed.com:7300
+    Connection status: Connected and authorized
 
 Configure and create subscription
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 You should specify event type. For timed subscription (conflated stream)
 you should also provide time to start subscription from.
 
-.. code:: ipython3
+.. code:: python3
 
     trade_sub = endpoint.create_subscription('Trade', data_len=-1)
 
 **Attach default listener** - function that process incoming events
 
-.. code:: ipython3
+.. code:: python3
 
     trade_sub = trade_sub.attach_listener()
 
 **Add tikers** you want to recieve events for
 
-.. code:: ipython3
+.. code:: python3
 
     trade_sub = trade_sub.add_symbols(['C', 'AAPL'])
 
 For timed subscription you may provide either datetime object or string.
 String might be incomlete, in this case you will get warning with how
 your provided date parsed automatically
 
-.. code:: ipython3
+.. code:: python3
 
     tns_sub = endpoint.create_subscription('TimeAndSale', date_time=datetime.now()) \
                       .attach_listener() \
                       .add_symbols(['AMZN'])
 
-.. code:: ipython3
+.. code:: python3
 
     candle_sub = endpoint.create_subscription('Candle', date_time='2020-04-16 13:05')
     candle_sub = candle_sub.attach_listener()
@@ -74,15 +74,15 @@ your provided date parsed automatically
 Subscription instance properties
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-.. code:: ipython3
+.. code:: python3
 
     print(f'Subscription event type: {tns_sub.event_type}')
     print(f'Subscription symbols: {candle_sub.symbols}')
 
 .. code:: text
 
-    TimeAndSale
-    ['AAPL', 'MSFT']
+    Subscription event type: TimeAndSale
+    Subscription symbols: ['AAPL', 'MSFT']
 
 Access data
 ~~~~~~~~~~~
@@ -91,26 +91,26 @@ Data is stored as deque. Its length is configured with data_len
 parameter and by default is 100000. When you call method below you
 extracts all data recieved to the moment and clears the buffer in class.
 
-.. code:: ipython3
+.. code:: python3
 
     candle_sub.get_data()
 
 Close connection
 ~~~~~~~~~~~~~~~~
 
-.. code:: ipython3
+.. code:: python3
 
     endpoint.close_connection()
     print(f'Connection status: {endpoint.connection_status}')
 
 .. code:: text
 
-    Not connected
+    Connection status: Not connected
 
 Transform data to pandas DataFrame
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-.. code:: ipython3
+.. code:: python3
 
     trade_df = trade_sub.to_dataframe()
     tns_df = tns_sub.to_dataframe()