Add status code 502 to the urllib retry list

fixes pypa#11843 related pypa#12008
bdraco · Jan 30, 2024 · 9cf1c5e · 9cf1c5e
1 parent 89950c5
commit 9cf1c5e
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diff --git a/news/11843.feature.rst b/news/11843.feature.rst
@@ -0,0 +1 @@
+Retry on HTTP status code 502
diff --git a/src/pip/_internal/network/session.py b/src/pip/_internal/network/session.py
@@ -355,8 +355,9 @@ def __init__(
             # is typically considered a transient error so we'll go ahead and
             # retry it.
             # A 500 may indicate transient error in Amazon S3
+            # A 502 may be a transient error from a CDN
             # A 520 or 527 - may indicate transient error in CloudFlare
-            status_forcelist=[500, 503, 520, 527],
+            status_forcelist=[500, 502, 503, 520, 527],
             # Add a small amount of back off between failed requests in
             # order to prevent hammering the service.
             backoff_factor=0.25,