From: Mike Bayer <mike_mp@zzzcomputing.com>
Date: Wed, 17 Oct 2018 14:09:50 +0000 (-0400)
Subject: Revert "Replace set union_update() references with update()"
X-Git-Tag: rel_1_0_1~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ae38a5a373b8c488072cf972eb431c5efd72f0f3;p=thirdparty%2Fsqlalchemy%2Falembic.git

Revert "Replace set union_update() references with update()"

This reverts commit 7e3d032cc92af73988f02f281ab354de7fc8e3ab.   the
PR was not provided with a test case or bug report and this is actually
an uncovered code bug.  will re-submit with a proper bug report
---

diff --git a/alembic/autogenerate/api.py b/alembic/autogenerate/api.py
index 15b5b6b0..b54e6aa2 100644
--- a/alembic/autogenerate/api.py
+++ b/alembic/autogenerate/api.py
@@ -395,7 +395,7 @@ class RevisionContext(object):
             # renders
             autogen_context.imports = set()
             if migration_script.imports:
-                autogen_context.imports.update(migration_script.imports)
+                autogen_context.imports.union_update(migration_script.imports)
             render._render_python_into_templatevars(
                 autogen_context, migration_script, template_args
             )