Pip 执行命令python setup.py egg\u info时未实现错误[Errno 89]函数

更新6/25/2013）在尝试使用

pip

安装不同的软件包时，我看到了相同的错误，表明该软件包可能与问题无关

---

在

QNX

上，我在运行

pip

时看到以下错误

# pip install -U catkin_pkg 
Downloading/unpacking catkin-pkg
  Running setup.py egg_info for package catkin-pkg

Requirement already up-to-date: argparse in /usr/pkg/lib/python2.7/site-packages (from catkin-pkg)
Requirement already up-to-date: docutils in /usr/pkg/lib/python2.7/site-packages (from catkin-pkg)
Requirement already up-to-date: python-dateutil in /usr/pkg/lib/python2.7/site-packages (from catkin-pkg)
Requirement already up-to-date: six in /usr/pkg/lib/python2.7/site-packages (from python-dateutil->catkin-pkg)
Installing collected packages: catkin-pkg
  Running setup.py install for catkin-pkg
    Error [Errno 89] Function not implemented while executing command /usr/qnx650/host/qnx6/x86/usr/bin/python -c "import setuptools;__file__='/tmp/pip-build-n130s/catkin-pkg/setup.py';exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-XhRdBe-record/install-record.txt --single-version-externally-managed
Exception:
Traceback (most recent call last):
  File "/usr/pkg/lib/python2.7/site-packages/pip-1.3-py2.7.egg/pip/basecommand.py", line 139, in main
    status = self.run(options, args)
  File "/usr/pkg/lib/python2.7/site-packages/pip-1.3-py2.7.egg/pip/commands/install.py", line 271, in run
    requirement_set.install(install_options, global_options, root=options.root_path)
  File "/usr/pkg/lib/python2.7/site-packages/pip-1.3-py2.7.egg/pip/req.py", line 1185, in install
    requirement.install(install_options, global_options, *args, **kwargs)
  File "/usr/pkg/lib/python2.7/site-packages/pip-1.3-py2.7.egg/pip/req.py", line 592, in install
    cwd=self.source_dir, filter_stdout=self._filter_install, show_stdout=False)
  File "/usr/pkg/lib/python2.7/site-packages/pip-1.3-py2.7.egg/pip/util.py", line 627, in call_subprocess
    cwd=cwd, env=env)
  File "/usr/pkg/lib/python2.7/subprocess.py", line 711, in __init__
    errread, errwrite)
  File "/usr/pkg/lib/python2.7/subprocess.py", line 1205, in _execute_child
    self.pid = os.fork()
OSError: [Errno 89] Function not implemented
Storing complete log in /root/.pip/pip.log

我第一次运行此命令时，未安装依赖组件，如

argparse

、

docutils

、

python-dateutil

和

six

，但在检查这些必需组件的部分发生了相同的错误。现在我已经一个接一个地安装了它们，这似乎发生在我正在安装的pkg上（即，

catkin\u-pkg

）

在python的控制台上，

os.fork（）

，我假定它是原因的来源，其行为不同。因此，我甚至不确定错误是否发生在

os.fork（）

上

# python
Python 2.7.4 (default, Jun 21 2013, 22:33:48) 
[GCC 4.4.2] on qnx6
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> os.fork()
18804790
>>> 0
sem_wait: Invalid argument

如何避免这个错误？谢谢大家!

---

使用

QNX

6.5.0sdpsp1，

pip

version也是1.3（）。

。在不使用

-U

选项的情况下运行

pip

可以安装软件包（安装日志位于底部供参考）

…但为什么。。。？

pip

的帮助信息对我来说似乎没有意义：

$ pip install --help
:
Install Options:
:
  -U, --upgrade   Upgrade all packages to the newest available version. This process is recursive regardless of whether a dependency is already satisfied.

安装日志由

pip

：

$ pip install catkin_pkg    
Downloading/unpacking catkin-pkg
  Running setup.py egg_info for package catkin-pkg

Requirement already satisfied (use --upgrade to upgrade): argparse in /usr/pkg/lib/python2.7/site-packages (from catkin-pkg)
Requirement already satisfied (use --upgrade to upgrade): docutils in /usr/pkg/lib/python2.7/site-packages (from catkin-pkg)
Requirement already satisfied (use --upgrade to upgrade): python-dateutil in /usr/pkg/lib/python2.7/site-packages (from catkin-pkg)
Requirement already satisfied (use --upgrade to upgrade): six in /usr/pkg/lib/python2.7/site-packages (from python-dateutil->catkin-pkg)
Installing collected packages: catkin-pkg
  Running setup.py install for catkin-pkg
    changing mode of build/scripts-2.7/catkin_create_pkg from 664 to 775
    changing mode of build/scripts-2.7/catkin_generate_changelog from 664 to 775
    changing mode of build/scripts-2.7/catkin_tag_changelog from 664 to 775
    changing mode of build/scripts-2.7/catkin_test_changelog from 664 to 775

    changing mode of /usr/pkg/bin/catkin_create_pkg to 775
    changing mode of /usr/pkg/bin/catkin_generate_changelog to 775
    changing mode of /usr/pkg/bin/catkin_tag_changelog to 775
    changing mode of /usr/pkg/bin/catkin_test_changelog to 775
Successfully installed catkin-pkg
Cleaning up...