"sudo: python3.5: command not found" in centos-7 jobs

[YAMAMOTO Takashi]

eg. https://zuul.opendev.org/t/openstack/build/155b466d3f044d879cde6ed41b32e04b/logs

2019-12-06 10:09:43.814 | + functions-common:is_suse_linux_enterprise:482 : [[ -z CentOS ]]
2019-12-06 10:09:43.817 | + functions-common:is_suse_linux_enterprise:486 : [[ CentOS =~ (^SUSE) ]]
2019-12-06 10:09:43.819 | + functions-common:GetDistro:396 : [[ CentOS =~ (Red.*Hat) ]]
2019-12-06 10:09:43.822 | + functions-common:GetDistro:396 : [[ CentOS =~ (CentOS) ]]
2019-12-06 10:09:43.825 | + functions-common:GetDistro:399 : DISTRO=rhel7
2019-12-06 10:09:43.827 | + functions-common:GetDistro:424 : typeset -xr DISTRO
2019-12-06 10:09:43.830 | + tools/install_pip.sh:main:44 : echo 'Distro: rhel7'
2019-12-06 10:09:43.830 | Distro: rhel7
2019-12-06 10:09:43.833 | + tools/install_pip.sh:main:126 : get_versions
2019-12-06 10:09:43.837 | ++ tools/install_pip.sh:get_versions:49 : which pip
2019-12-06 10:09:43.841 | + tools/install_pip.sh:get_versions:49 : PIP=/bin/pip
2019-12-06 10:09:43.844 | + tools/install_pip.sh:get_versions:50 : [[ -n /bin/pip ]]
2019-12-06 10:09:43.848 | ++ tools/install_pip.sh:get_versions:51 : /bin/pip --version
2019-12-06 10:09:43.848 | ++ tools/install_pip.sh:get_versions:51 : awk '{ print $2}'
2019-12-06 10:09:44.255 | + tools/install_pip.sh:get_versions:51 : PIP_VERSION=19.3.1
2019-12-06 10:09:44.258 | + tools/install_pip.sh:get_versions:52 : echo 'pip: 19.3.1'
2019-12-06 10:09:44.258 | pip: 19.3.1
2019-12-06 10:09:44.261 | + tools/install_pip.sh:main:135 : is_fedora
2019-12-06 10:09:44.264 | + functions-common:is_fedora:448 : [[ -z CentOS ]]
2019-12-06 10:09:44.266 | + functions-common:is_fedora:452 : '[' CentOS = Fedora ']'
2019-12-06 10:09:44.269 | + functions-common:is_fedora:452 : '[' CentOS = 'Red Hat' ']'
2019-12-06 10:09:44.272 | + functions-common:is_fedora:453 : '[' CentOS = RedHatEnterpriseServer ']'
2019-12-06 10:09:44.274 | + functions-common:is_fedora:454 : '[' CentOS = CentOS ']'
2019-12-06 10:09:44.277 | + tools/install_pip.sh:main:140 : install_get_pip
2019-12-06 10:09:44.280 | + tools/install_pip.sh:install_get_pip:62 : [[ -r /opt/stack/new/devstack/files/get-pip.py ]]
2019-12-06 10:09:44.283 | + tools/install_pip.sh:install_get_pip:63 : head -1 /opt/stack/new/devstack/files/get-pip.py
2019-12-06 10:09:44.283 | + tools/install_pip.sh:install_get_pip:63 : grep -q '#!/usr/bin/env python'
2019-12-06 10:09:44.288 | + tools/install_pip.sh:install_get_pip:79 : [[ ! -r /opt/stack/new/devstack/files/get-pip.py ]]
2019-12-06 10:09:44.291 | + tools/install_pip.sh:install_get_pip:79 : [[ -r /opt/stack/new/devstack/files/get-pip.py.downloaded ]]
2019-12-06 10:09:44.294 | + tools/install_pip.sh:install_get_pip:92 : sudo -H -E python /opt/stack/new/devstack/files/get-pip.py -c /opt/stack/new/devstack/tools/cap-pip.txt
2019-12-06 10:09:46.620 | DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support
2019-12-06 10:09:46.719 | Looking in indexes: http://mirror.ord.rax.opendev.org/pypi/simple, http://mirror.ord.rax.opendev.org/wheel/centos-7.7.1908-x86_64
2019-12-06 10:09:46.897 | Collecting pip!=8,<10
2019-12-06 10:09:46.902 | Downloading http://mirror.ord.rax.opendev.org/pypifiles/packages/ac/95/a05b56bb975efa78d3557efa36acaf9cf5d2fd0ee0062060493687432e03/pip-9.0.3-py2.py3-none-any.whl (1.4MB)
2019-12-06 10:09:47.310 | Installing collected packages: pip
2019-12-06 10:09:47.310 | Found existing installation: pip 19.3.1
2019-12-06 10:09:47.475 | Uninstalling pip-19.3.1:
2019-12-06 10:09:47.524 | Successfully uninstalled pip-19.3.1
2019-12-06 10:09:48.671 | Successfully installed pip-9.0.3
2019-12-06 10:09:48.814 | + tools/install_pip.sh:install_get_pip:93 : python3_enabled
2019-12-06 10:09:48.818 | + inc/python:python3_enabled:532 : [[ True == \T\r\u\e ]]
2019-12-06 10:09:48.820 | + inc/python:python3_enabled:533 : return 0
2019-12-06 10:09:48.823 | + tools/install_pip.sh:install_get_pip:94 : sudo -H -E python3.5 /opt/stack/new/devstack/files/get-pip.py -c /opt/stack/new/devstack/tools/cap-pip.txt
2019-12-06 10:09:48.846 | sudo: python3.5: command not found
2019-12-06 10:09:48.851 | ++ ./stack.sh:main:796 : err_trap
2019-12-06 10:09:48.854 | ++ ./stack.sh:err_trap:574 : local r=1
2019-12-06 10:09:48.857 | stack.sh failed: full log in /opt/stack/new/devstacklog.txt.2019-12-06-100857
2019-12-06 10:09:48.859 | Error on exit
2019-12-06 10:09:48.900 | World dumping... see /opt/stack/new/screen-logs/worlddump-2019-12-06-100948.txt for details

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/697648
Committed: https://git.openstack.org/cgit/openstack/networking-midonet/commit/?id=52b7d13449383b83326537824f25f323e38075b2
Submitter: Zuul
Branch: master

commit 52b7d13449383b83326537824f25f323e38075b2
Author: YAMAMOTO Takashi <email address hidden>
Date: Fri Dec 6 20:38:55 2019 +0900

    Specify USE_PYTHON3=False explicitly

    Currently our devstack jobs are with python2 because
    they all are on centos-7, where python3 is not ready.
    They recently started failing with "python3.5 not found" for
    some reasons. (I haven't investigated why.)
    Specify USE_PYTHON3=False as a workaround.

    Closes-Bug: #1855512
    Change-Id: I71c6a20f32650bc58953d237da9aa80bef4d1f60

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/networking-midonet 10.0.0.0b1 development milestone.