fix flake8, rebase

test/test_other.py

diff --git a/test/test_other.py b/test/test_other.py
index baf8768..3eb6ec2 100644
--- a/test/test_other.py
+++ b/test/test_other.py
@@ -2370,7 +2370,7 @@
         (['-O2', '-g'], True, True),
       ]:
       print(args, expect_dwarf, expect_name)
-      err = self.run_process([EMXX, '-v', test_file('hello_world.cpp')] + args, stdout=PIPE, stderr=PIPE).stderr
+      self.run_process([EMXX, '-v', test_file('hello_world.cpp')] + args, stdout=PIPE, stderr=PIPE).stderr
 
       # Check that expected .debug and name sections are found
       with webassembly.Module('a.out.wasm') as module: