如何为 makerbot/s3g 设置虚拟环境答案

【问题标题】：How to set up a Virtual Environment for makerbot/s3g如何为 makerbot/s3g 设置虚拟环境
【发布时间】：2014-10-07 21:05:45
【问题描述】：

我正在尝试让这个模块工作：

https://github.com/makerbot/s3g

它们的命名有点混乱，因为整个东西通常被称为“makerbot_driver”，而且还有一个子文件夹叫它。

我在尝试运行命令时遇到了麻烦：

python virtualenv.py virtualenv

当我按照他们的建议尝试在 makerbot_driver 文件夹中运行它时，我得到了这个：

python: can't open file 'virtualenv.py': [Errno 2] No such file or directory

这是有道理的，因为 virtualenv.py 实际上是一个文件夹。但是，当我打开一个文件夹并运行相同的命令时，它会更成功一些，但会遇到一堆我似乎无法解释的错误：

New python executable in virtualenv/bin/python
Installing setuptools...................................
  Complete output from command /home/jason/GitHub/s3g/virtualenv/bin/python -c "#!python
\"\"\"Bootstra...sys.argv[1:])






" /home/jason/GitHub/s...ols-0.6c11-py2.7.egg:
  Traceback (most recent call last):
  File "<string>", line 279, in <module>
  File "<string>", line 240, in main
  File "/home/jason/GitHub/s3g/setuptools-0.6c11-py2.7.egg/setuptools/command/easy_install.py", line 1712, in main
  File "/home/jason/GitHub/s3g/setuptools-0.6c11-py2.7.egg/setuptools/command/easy_install.py", line 1700, in with_ei_usage
  File "/home/jason/GitHub/s3g/setuptools-0.6c11-py2.7.egg/setuptools/command/easy_install.py", line 1716, in <lambda>
  File "/usr/lib/python2.7/distutils/core.py", line 151, in setup
dist.run_commands()
  File "/usr/lib/python2.7/distutils/dist.py", line 953, in run_commands
    self.run_command(cmd)
  File "/usr/lib/python2.7/distutils/dist.py", line 971, in run_command
    cmd_obj.ensure_finalized()
  File "/usr/lib/python2.7/distutils/cmd.py", line 109, in ensure_finalized
    self.finalize_options()
  File "/home/jason/GitHub/s3g/setuptools-0.6c11-py2.7.egg/setuptools/command/easy_install.py", line 125, in finalize_options
  File "/home/jason/GitHub/s3g/setuptools-0.6c11-py2.7.egg/setuptools/command/easy_install.py", line 1121, in _expand
  File "/usr/lib/python2.7/distutils/cmd.py", line 312, in get_finalized_command
    cmd_obj.ensure_finalized()
  File "/usr/lib/python2.7/distutils/cmd.py", line 109, in ensure_finalized
    self.finalize_options()
  File "/home/jason/GitHub/s3g/setuptools-0.6c11-py2.7.egg/setuptools/command/install.py", line 32, in finalize_options
  File "/usr/lib/python2.7/distutils/command/install.py", line 321, in finalize_options
    (prefix, exec_prefix) = get_config_vars('prefix', 'exec_prefix')
  File "/home/jason/GitHub/s3g/virtualenv/lib/python2.7/distutils/__init__.py", line 88, in sysconfig_get_config_vars
    real_vars = old_get_config_vars(*args)
  File "/usr/lib/python2.7/distutils/sysconfig.py", line 495, in get_config_vars
    func()
  File "/usr/lib/python2.7/distutils/sysconfig.py", line 439, in _init_posix
    from _sysconfigdata import build_time_vars
  File "/usr/lib/python2.7/_sysconfigdata.py", line 6, in <module>
    from _sysconfigdata_nd import *
ImportError: No module named _sysconfigdata_nd
----------------------------------------
...Installing setuptools...done.
Traceback (most recent call last):
  File "virtualenv.py", line 2270, in <module>
    main()
  File "virtualenv.py", line 928, in main
    never_download=options.never_download)
  File "virtualenv.py", line 1040, in create_environment
    search_dirs=search_dirs, never_download=never_download)
  File "virtualenv.py", line 593, in install_setuptools
    search_dirs=search_dirs, never_download=never_download)
  File "virtualenv.py", line 567, in _install_req
    cwd=cwd)
  File "virtualenv.py", line 1006, in call_subprocess
    % (cmd_desc, proc.returncode))
OSError: Command /home/jason/GitHub/s3g/virtualenv/bin/python -c "#!python
\"\"\"Bootstra...sys.argv[1:])






" /home/jason/GitHub/s...ols-0.6c11-py2.7.egg failed with error code 1

我尝试安装他们需要的 pyserial 模块和 virtualenv 之类的东西，结果一切都很好，但是这个 virtualenv 对我来说一直很糟糕。

任何建议都将不胜感激。谢谢。

【问题讨论】：

答案可以帮到你stackoverflow.com/questions/15608236/…
嗨，我一直在尝试使用这个 makerbot projet 来设置树莓派和 Replicator Mini 之间的通信，但似乎我无法获取打印机的串行端口（它适用于 Replicator 2X）。您使用的是哪种打印机？
我使用的是 Replicator 2。我的代码可以在 GitHub 上找到，如果您愿意的话：github.com/JujuZA/PiMaker 我构建了一个系统来从 raspberry pi 和一个 Web 服务运行 makerbot，以便您可以上传、触发和监控打印。

标签： python virtualenv

【解决方案1】：

这是 Ubuntu 中的一个已知错误。修复：

$ cd /usr/lib/python2.7
$ sudo ln -s plat-x86_64-linux-gnu/_sysconfigdata_nd.py .

然后就可以了。

$ python2.7 virtualenv.py virtualenv
New python executable in virtualenv/bin/python2.7
Not overwriting existing python script virtualenv/bin/python (you must use virtualenv/bin/python2.7)
Installing setuptools................................done.
Installing pip.....................done.

【讨论】：