leezu commented on a change in pull request #18115:
URL: https://github.com/apache/incubator-mxnet/pull/18115#discussion_r412545271
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File path: ci/docker/runtime_functions.sh
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@@ -983,6 +983,7 @@ sanity_check() {
# $2 -> python_cmd: The python command to use to execute the tests, python or
python3
cd_unittest_ubuntu() {
set -ex
+ source /opt/rh/rh-python35/enable
Review comment:
CentOS7 ships with Python 2 by default. 3.5 is opt in. This is the
opt-in. You can find more info https://www.softwarecollections.org/en/
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