Question

我正在使用stack.sh

部署OpenStack Newton devstack

我遇到了以下问题：

Processing /opt/stack/requirements
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-2UrvLp-build/setup.py", line 29, in <module>
        pbr=True)
      File "/usr/lib/python2.7/distutils/core.py", line 111, in setup
        _setup_distribution = dist = klass(attrs)
      File "/opt/stack/requirements/.venv/local/lib/python2.7/site-packages/setuptools/dist.py", line 320, in __init__
        _Distribution.__init__(self, attrs)
      File "/usr/lib/python2.7/distutils/dist.py", line 287, in __init__
        self.finalize_options()
      File "/opt/stack/requirements/.venv/local/lib/python2.7/site-packages/setuptools/dist.py", line 386, in finalize_options
        ep.require(installer=self.fetch_build_egg)
      File "/opt/stack/requirements/.venv/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2318, in require
        items = working_set.resolve(reqs, env, installer, extras=self.extras)
      File "/opt/stack/requirements/.venv/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 859, in resolve
        raise VersionConflict(dist, req).with_context(dependent_req)
    pkg_resources.VersionConflict: (packaging 16.7 (/opt/stack/requirements/.venv/lib/python2.7/site-packages), Requirement.parse('packaging>=16.8'))

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-2UrvLp-build/
+inc/python:pip_install:1                  exit_trap
+./stack.sh:exit_trap:487                  local r=1
++./stack.sh:exit_trap:488                  jobs -p
+./stack.sh:exit_trap:488                  jobs=
+./stack.sh:exit_trap:491                  [[ -n '' ]]
+./stack.sh:exit_trap:497                  kill_spinner
+./stack.sh:kill_spinner:383               '[' '!' -z '' ']'
+./stack.sh:exit_trap:499                  [[ 1 -ne 0 ]]
+./stack.sh:exit_trap:500                  echo 'Error on exit'
Error on exit
+./stack.sh:exit_trap:501                  generate-subunit 1486635146 55 fail
+./stack.sh:exit_trap:502                  [[ -z /opt/stack/logs ]]
+./stack.sh:exit_trap:505                  /home/demo/devstack/tools/worlddump.py -d /opt/stack/logs
World dumping... see /opt/stack/logs/worlddump-2017-02-09-101322.txt for details
+./stack.sh:exit_trap:511                  exit 1

看起来名为'packaging'的软件包存在版本冲突。

这是我做的 - ＆gt;通过执行以下操作尝试卸载并重新安装软件包：

pip uninstall packaging

pip install --upgrade packaging

但它并没有真正帮助我再次得到同样的错误。

请帮我解决这个问题，请具体说明我应该执行哪个命令以及在哪个目录中。

Answer 1

我在devstack中得到了完全相同的错误，以下是如何修复它：

首先添加一个全局设置来记录pip正在做的所有事情。使用以下内容创建/etc/pip.conf：

[global]
log = /var/log/pip.log

然后运行：

sudo touch /var/log/pip.log
sudo chmod a+rw /var/log/pip.log

确保pip始终可以写入此文件。

然后使用以下方法观察与包装包相关的更改：

tail -f /var/log/pip.log |grep packaging

并行重新启动./stack.sh。

在某些时候，在点子日志中你应该看到类似于：

的行

Setting packaging===16.7 (from -c /opt/stack/requirements/upper-constraints.txt ...

这显示了此要求的来源，在这种情况下，它来自/opt/stack/requirements/upper-constraints.txt文件。

然后，您可以手动编辑相关文件以更改此要求以消除冲突。就我而言，我取代了：

packaging===16.7

通过

packaging>=16.8

/opt/stack/requirements/upper-constraints.txt

中的

之后，devstack安装完成没有问题。

TL; DR

cd /opt/stack/requirements/
sed -i.bak s/packaging===16.7/packaging>=16.8/g upper-contraints.txt

Python打包模块的版本冲突问题

1 个答案:

TL; DR