hello 
I have the same problem(https://paste.opendev.org/show/812015/)


+tools/install_pip.sh:main:133             install_get_pip
+tools/install_pip.sh:install_get_pip:62   [[ -r /home/lu/code/devstack/files/get-pip.py ]]
+tools/install_pip.sh:install_get_pip:63   grep -q '#!/usr/bin/env python'
+tools/install_pip.sh:install_get_pip:63   head -1 /home/lu/code/devstack/files/get-pip.py
+tools/install_pip.sh:install_get_pip:79   [[ ! -r /home/lu/code/devstack/files/get-pip.py ]]
+tools/install_pip.sh:install_get_pip:79   [[ -r /home/lu/code/devstack/files/get-pip.py.downloaded ]]
+tools/install_pip.sh:install_get_pip:82   local timecond=
+tools/install_pip.sh:install_get_pip:83   [[ -r /home/lu/code/devstack/files/get-pip.py ]]
+tools/install_pip.sh:install_get_pip:84   timecond='-z /home/lu/code/devstack/files/get-pip.py'
+tools/install_pip.sh:install_get_pip:87   curl --socks5 127.0.0.1:7072 -f --retry 6 --retry-delay 5 -z /home/lu/code/devstack/files/get-pip.py -o /home/lu/code/devstack/files/get-pip.py https://bootstrap.pypa.io/get-pip.py
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:--  0:00:01 --:--:--     0
+tools/install_pip.sh:install_get_pip:90   touch /home/lu/code/devstack/files/get-pip.py.downloaded
+tools/install_pip.sh:install_get_pip:92   sudo -H -E python3.8 /home/lu/code/devstack/files/get-pip.py
/usr/local/lib/python3.8/dist-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
  warnings.warn(
DEPRECATION: Configuring installation scheme with distutils config files is deprecated and will no longer work in the near future. If you are using a Homebrew or Linuxbrew Python, please see discussion at https://github.com/Homebrew/homebrew-core/issues/76621
Collecting pip
  Using cached pip-21.3.1-py3-none-any.whl (1.7 MB)
Installing collected packages: pip
/usr/local/lib/python3.8/dist-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
  warnings.warn(
/usr/local/lib/python3.8/dist-packages/setuptools/command/install.py:34: SetuptoolsDeprecationWarning: setup.py install is deprecated. Use build and pip and other standards-based tools.
  warnings.warn(
DEPRECATION: Configuring installation scheme with distutils config files is deprecated and will no longer work in the near future. If you are using a Homebrew or Linuxbrew Python, please see discussion at https://github.com/Homebrew/homebrew-core/issues/76621
Successfully installed pip-21.3.1
WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv
+tools/install_pip.sh:main:136             set -x
+tools/install_pip.sh:main:140             pip_install_gr setuptools
+inc/python:pip_install_gr:76              local name=setuptools
+inc/python:pip_install_gr:77              local clean_name
++inc/python:pip_install_gr:78              get_from_global_requirements setuptools
++inc/python:get_from_global_requirements:225  local package=setuptools
++inc/python:get_from_global_requirements:226  local required_pkg
+++inc/python:get_from_global_requirements:227  grep -i -h '^setuptools' /opt/stack/requirements/global-requirements.txt
+++inc/python:get_from_global_requirements:227  cut -d# -f1
++inc/python:get_from_global_requirements:227  required_pkg='setuptools!=24.0.0,!=34.0.0,!=34.0.1,!=34.0.2,!=34.0.3,!=34.1.0,!=34.1.1,!=34.2.0,!=34.3.0,!=34.3.1,!=34.3.2,!=36.2.0,!=48.0.0,!=49.0.0  '
++inc/python:get_from_global_requirements:228  [[ setuptools!=24.0.0,!=34.0.0,!=34.0.1,!=34.0.2,!=34.0.3,!=34.1.0,!=34.1.1,!=34.2.0,!=34.3.0,!=34.3.1,!=34.3.2,!=36.2.0,!=48.0.0,!=49.0.0   == '' ]]
++inc/python:get_from_global_requirements:231  echo 'setuptools!=24.0.0,!=34.0.0,!=34.0.1,!=34.0.2,!=34.0.3,!=34.1.0,!=34.1.1,!=34.2.0,!=34.3.0,!=34.3.1,!=34.3.2,!=36.2.0,!=48.0.0,!=49.0.0'
+inc/python:pip_install_gr:78              clean_name='setuptools!=24.0.0,!=34.0.0,!=34.0.1,!=34.0.2,!=34.0.3,!=34.1.0,!=34.1.1,!=34.2.0,!=34.3.0,!=34.3.1,!=34.3.2,!=36.2.0,!=48.0.0,!=49.0.0'
+inc/python:pip_install_gr:79              pip_install 'setuptools!=24.0.0,!=34.0.0,!=34.0.1,!=34.0.2,!=34.0.3,!=34.1.0,!=34.1.1,!=34.2.0,!=34.3.0,!=34.3.1,!=34.3.2,!=36.2.0,!=48.0.0,!=49.0.0'
+inc/python:pip_install:128                local xtrace result
++inc/python:pip_install:129                set +o
++inc/python:pip_install:129                grep xtrace
+inc/python:pip_install:129                xtrace='set -o xtrace'
+inc/python:pip_install:130                set +o xtrace
Using python 3.8 to install setuptools!=24.0.0,!=34.0.0,!=34.0.1,!=34.0.2,!=34.0.3,!=34.1.0,!=34.1.1,!=34.2.0,!=34.3.0,!=34.3.1,!=34.3.2,!=36.2.0,!=48.0.0,!=49.0.0
+inc/python:pip_install:193                sudo -H LC_ALL=en_US.UTF-8 SETUPTOOLS_USE_DISTUTILS=stdlib http_proxy= https_proxy= no_proxy= PIP_FIND_LINKS= SETUPTOOLS_SYS_PATH_TECHNIQUE=rewrite python3.8 -m pip install -c /opt/stack/requirements/upper-constraints.txt 'setuptools!=24.0.0,!=34.0.0,!=34.0.1,!=34.0.2,!=34.0.3,!=34.1.0,!=34.1.1,!=34.2.0,!=34.3.0,!=34.3.1,!=34.3.2,!=36.2.0,!=48.0.0,!=49.0.0'
/usr/bin/python3.8: No module named pip
++./stack.sh:main:789                       err_trap
++./stack.sh:err_trap:562                   local r=1
++./stack.sh:err_trap:563                   set +o xtrace
stack.sh failed
Error on exit
World dumping... see /opt/stack/logs/worlddump-2022-01-11-060224.txt for details
lu@lu-vm:~/code/devstack$ ll /opt/stack/logs/worlddump-2022-01-11-060224.txt
-rw-r--r-- 1 lu lu 62557 1月  11 14:02 /opt/stack/logs/worlddump-2022-01-11-060224.txt