Updated python port of Tutorial 2 with fixed line numbers

Part-of: <!126>

.gitignore

 /built_doc
+.vscode
+build/
 /hotdoc-private*
 /.hotdoc.d
 /*.stamp

examples/tutorials/python/basic-tutorial-2.py

+#!/usr/bin/env python3
+import sys
+import gi
+import logging
+
+gi.require_version("GLib", "2.0")
+gi.require_version("GObject", "2.0")
+gi.require_version("Gst", "1.0")
+
+from gi.repository import Gst, GLib, GObject
+
+
+logging.basicConfig(level=logging.DEBUG, format="[%(name)s] [%(levelname)8s] - %(message)s")
+logger = logging.getLogger(__name__)
+
+# Initialize GStreamer
+Gst.init(sys.argv[1:])
+
+# Create the elements
+source = Gst.ElementFactory.make("videotestsrc", "source")
+sink = Gst.ElementFactory.make("autovideosink", "sink")
+
+# Create the empty pipeline
+pipeline = Gst.Pipeline.new("test-pipeline")
+
+if not pipeline or not source or not sink:
+    logger.error("Not all elements could be created.")
+    sys.exit(1)
+
+
+# Build the pipeline
+pipeline.add(source, sink)
+if not source.link(sink):
+    logger.error("Elements could not be linked.")
+    sys.exit(1)
+
+# Modify the source's properties
+source.props.pattern = 0
+# Can alternatively be done using `source.set_property("pattern",0)`
+# or using `Gst.util_set_object_arg(source, "pattern", 0)`
+
+# Start playing
+ret = pipeline.set_state(Gst.State.PLAYING)
+if ret == Gst.StateChangeReturn.FAILURE:
+    logger.error("Unable to set the pipeline to the playing state.")
+    sys.exit(1)
+
+# Wait for EOS or error
+bus = pipeline.get_bus()
+msg = bus.timed_pop_filtered(Gst.CLOCK_TIME_NONE, Gst.MessageType.ERROR | Gst.MessageType.EOS)
+
+# Parse message
+if msg:
+    if msg.type == Gst.MessageType.ERROR:
+        err, debug_info = msg.parse_error()
+        logger.error(f"Error received from element {msg.src.get_name()}: {err.message}")
+        logger.error(f"Debugging information: {debug_info if debug_info else 'none'}")
+    elif msg.type == Gst.MessageType.EOS:
+        logger.info("End-Of-Stream reached.")
+    else:
+        # This should not happen as we only asked for ERRORs and EOS
+        logger.error("Unexpected message received.")
+
+pipeline.set_state(Gst.State.NULL)