New pip and distutils don't get a long

rnpridgeon · rnpridgeon · commit c75f4af1dfb4 · 2018-06-17T20:32:05.000-04:00
diff --git a/tools/test-manylinux.sh b/tools/test-manylinux.sh
@@ -61,7 +61,8 @@ function run_single_in_docker {
     pip install "enum34;python_version=='2.7'"
 
     pip install confluent_kafka --no-index -f $wheelhouse
-    pip install pytest
+    # https://github.com/pypa/pip/issues/5247
+    pip install pytest --ignore-installed six
 
     # Verify that OpenSSL and zlib are properly linked
     python -c '
