Added urllib3 version check (#547)

* Added version check

* Removed packaging

Signed-off-by: varun-edachali-dbx <[email protected]>

Author: jprakash-db

src/databricks/sql/auth/retry.py

@@ -17,7 +17,6 @@
     from urllib3 import HTTPResponse as BaseHTTPResponse
 from urllib3 import Retry
 from urllib3.util.retry import RequestHistory
-from packaging import version
 
 
 
@@ -314,7 +313,9 @@ def get_backoff_time(self) -> float:
 
         current_attempt = self.stop_after_attempts_count - int(self.total or 0)
         proposed_backoff = (2**current_attempt) * self.delay_min
-        if version.parse(urllib3.__version__) >= version.parse("2.0.0"):
+
+        library_version = version("urllib3")
+        if int(library_version.split(".")[0]) >= 2:
             if self.backoff_jitter != 0.0:
                 proposed_backoff += random.random() * self.backoff_jitter