python - 如何安装pybrain？

Question

我使用 git 下载了 pybrain

$ git clone git://github.com/pybrain/pybrain.git

当我尝试安装时，

$ python setup.py install

它导致安装 scipy 时出错:

Running scipy-0.14.0/setup.py -q bdist_egg --dist-dir /tmp/easy_install-fxe0wp/scipy-0.14.0/egg-dist-tmp-Kbnkhx
Traceback (most recent call last):
  File "setup.py", line 22, in <module>
    install_requires = ["scipy"],
  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 972, in run_command
    cmd_obj.run()
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/setuptools/command/install.py", line 76, in run
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/setuptools/command/install.py", line 104, in do_egg_install
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/setuptools/command/easy_install.py", line 211, in run
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/setuptools/command/easy_install.py", line 427, in easy_install
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/setuptools/command/easy_install.py", line 478, in install_item
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/setuptools/command/easy_install.py", line 519, in process_distribution
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/pkg_resources.py", line 563, in resolve
    entry = dist.location
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/pkg_resources.py", line 799, in best_match
    def scan(self, search_path=None):
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/pkg_resources.py", line 811, in obtain
    for dist in find_distributions(item):
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/setuptools/command/easy_install.py", line 446, in easy_install
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/setuptools/command/easy_install.py", line 476, in install_item
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/setuptools/command/easy_install.py", line 655, in install_eggs
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/setuptools/command/easy_install.py", line 930, in build_and_install
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/setuptools/command/easy_install.py", line 919, in run_setup
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/setuptools/sandbox.py", line 62, in run_setup
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/setuptools/sandbox.py", line 105, in run
  File "/usr/local/lib/python2.7/dist-packages/setuptools-0.6c11-py2.7.egg/setuptools/sandbox.py", line 64, in <lambda>
  File "setup.py", line 237, in <module>

  File "setup.py", line 225, in setup_package

ImportError: No module named numpy.distutils.core

我尝试安装其他模块，但我遇到了几乎相同的问题。你能解释一下我该如何解决吗？

Answer 1

既然已经下载了，也可以使用pip进行开发安装

pip install -e /local/path/to/pybrain

那样 pip 可能会为您安装依赖项。

有些系统有很旧的 pips/setuptools，所以你可能需要这样做

pip install --upgrade pip
pip install --upgrade setuptools

如果第一个失败(我在某些系统上看到过这种情况)，请尝试

python -m pip install --upgrade pip

(您需要对所需安装路径的写入权限)。

编辑:事实证明这不是很容易安装...我尝试了以下顺序

pip install numpy
pip install scipy
pip install pybrain

在 Ubuntu 12.04 LTS 上的新 virtualenv 中，scipy 提示缺少 BLAS 环境变量...我知道 BLAS 是一个用于统计或数学的库，但仅此而已。

阅读http://www.scipy.org/install.html似乎 apt-get install python-numpy python-scipy python-matplotlib ipython ipython-notebook python-pandas python-sympy python-nose 可能会安装 scipy(如果你使用的是正确的 Ubuntu 版本-- 我不是..)