fix(flask): Warning __version__ is deprecated, will be removed in 3.1

Signed-off-by: Ferenc Géczi <[email protected]>

Author: Ferenc-

instana/instrumentation/flask/__init__.py

@@ -11,8 +11,7 @@
     #
     # Blinker support is preferred but we do the best we can when it's not available.
     #
-    flask_version = tuple(map(int, flask.__version__.split('.')))
-    if flask_version < (2, 3, 0):
+    if hasattr(flask.signals, 'signals_available'):
       from flask.signals import signals_available
     else:
       # Beginning from 2.3.0 as stated in the notes

tests/frameworks/test_flask.py

@@ -6,10 +6,9 @@
 import sys
 import unittest
 import urllib3
-
 import flask
-flask_version = tuple(map(int, flask.__version__.split('.')))
-if flask_version < (2, 3, 0):
+
+if hasattr(flask.signals, 'signals_available'):
   from flask.signals import signals_available
 else:
   # Beginning from 2.3.0 as stated in the notes