Added compatibility with older versions of urllib3

Author: grisov

frameioclient/lib/transport.py

@@ -45,12 +45,20 @@ def __init__(self, threads: Optional[int] = default_thread_count):
         self.shared_headers = {"x-frameio-client": f"python/{self.client_version}"}
 
         # Configure retry strategy (very broad right now)
-        self.retry_strategy = Retry(
-            total=100,
-            backoff_factor=2,
-            status_forcelist=retryable_statuses,
-            allowed_methods=["GET", "POST", "PUT", "GET", "DELETE"],
-        )
+        try:
+            self.retry_strategy = Retry(
+                total=100,
+                backoff_factor=2,
+                status_forcelist=retryable_statuses,
+                allowed_methods=["GET", "POST", "PUT", "GET", "DELETE"],
+            )
+        except TypeError:  # to save compatibility with older versions of urllib3
+            self.retry_strategy = Retry(
+                total=100,
+                backoff_factor=2,
+                status_forcelist=retryable_statuses,
+                method_whitelist=["GET", "POST", "PUT", "GET", "DELETE"],
+            )
 
         # Create real thread
         self._initialize_thread()