python - 在 Cygwin 中为 Anaconda 永久设置 Python 路径

Question

我正在尝试在我的 Windows 7 机器上安装 Anaconda。我经常使用 cygwin 来进行命令行工作，我想从那里管理 Anaconda。我已经完成了图形安装程序，没有任何问题，并选中了必要的框以将我的默认路径重置为此 python 安装。我继续检查 python 在哪里，最初我得到了这个......

$ which python
/usr/bin/python

从这里 python 工作正常...

$ python
Python 2.7.5 (default, Oct  2 2013, 22:34:09)
[GCC 4.8.1] on cygwin
Type "help", "copyright", "credits" or "license" for more information.

但我正在尝试从 anaconda 工作，所以我只需要重新定义我的路径...

$ export PATH=/cygdrive/c/anaconda:$PATH
$ which python
/cygdrive/c/anaconda/python

现在我应该很好了，但是当我尝试进入 python 时，它只是挂起

$ python

知道为什么会发生这种情况吗？详细返回，下面...

$ python -v
# installing zipimport hook
import zipimport # builtin
# installed zipimport hook
# C:\anaconda\lib\site.pyc matches C:\anaconda\lib\site.py
import site # precompiled from C:\anaconda\lib\site.pyc
# C:\anaconda\lib\os.pyc matches C:\anaconda\lib\os.py
import os # precompiled from C:\anaconda\lib\os.pyc
import errno # builtin
import nt # builtin
# C:\anaconda\lib\ntpath.pyc matches C:\anaconda\lib\ntpath.py
import ntpath # precompiled from C:\anaconda\lib\ntpath.pyc
# C:\anaconda\lib\stat.pyc matches C:\anaconda\lib\stat.py
import stat # precompiled from C:\anaconda\lib\stat.pyc
# C:\anaconda\lib\genericpath.pyc matches C:\anaconda\lib\genericpath.py
import genericpath # precompiled from C:\anaconda\lib\genericpath.pyc
# C:\anaconda\lib\warnings.pyc matches C:\anaconda\lib\warnings.py
import warnings # precompiled from C:\anaconda\lib\warnings.pyc
# C:\anaconda\lib\linecache.pyc matches C:\anaconda\lib\linecache.py
import linecache # precompiled from C:\anaconda\lib\linecache.pyc
# C:\anaconda\lib\types.pyc matches C:\anaconda\lib\types.py
import types # precompiled from C:\anaconda\lib\types.pyc
# C:\anaconda\lib\UserDict.pyc matches C:\anaconda\lib\UserDict.py
import UserDict # precompiled from C:\anaconda\lib\UserDict.pyc
# C:\anaconda\lib\_abcoll.pyc matches C:\anaconda\lib\_abcoll.py
import _abcoll # precompiled from C:\anaconda\lib\_abcoll.pyc
# C:\anaconda\lib\abc.pyc matches C:\anaconda\lib\abc.py
import abc # precompiled from C:\anaconda\lib\abc.pyc
# C:\anaconda\lib\_weakrefset.pyc matches C:\anaconda\lib\_weakrefset.py
import _weakrefset # precompiled from C:\anaconda\lib\_weakrefset.pyc
import _weakref # builtin
# C:\anaconda\lib\copy_reg.pyc matches C:\anaconda\lib\copy_reg.py
import copy_reg # precompiled from C:\anaconda\lib\copy_reg.pyc
# C:\anaconda\lib\traceback.pyc matches C:\anaconda\lib\traceback.py
import traceback # precompiled from C:\anaconda\lib\traceback.pyc
# C:\anaconda\lib\sysconfig.pyc matches C:\anaconda\lib\sysconfig.py
import sysconfig # precompiled from C:\anaconda\lib\sysconfig.pyc
# C:\anaconda\lib\re.pyc matches C:\anaconda\lib\re.py
import re # precompiled from C:\anaconda\lib\re.pyc
# C:\anaconda\lib\sre_compile.pyc matches C:\anaconda\lib\sre_compile.py
import sre_compile # precompiled from C:\anaconda\lib\sre_compile.pyc
import _sre # builtin
# C:\anaconda\lib\sre_parse.pyc matches C:\anaconda\lib\sre_parse.py
import sre_parse # precompiled from C:\anaconda\lib\sre_parse.pyc
# C:\anaconda\lib\sre_constants.pyc matches C:\anaconda\lib\sre_constants.py
import sre_constants # precompiled from C:\anaconda\lib\sre_constants.pyc
# C:\anaconda\lib\locale.pyc matches C:\anaconda\lib\locale.py
import locale # precompiled from C:\anaconda\lib\locale.pyc
import encodings # directory C:\anaconda\lib\encodings
# C:\anaconda\lib\encodings\__init__.pyc matches C:\anaconda\lib\encodings\__init__.py
import encodings # precompiled from C:\anaconda\lib\encodings\__init__.pyc
# C:\anaconda\lib\codecs.pyc matches C:\anaconda\lib\codecs.py
import codecs # precompiled from C:\anaconda\lib\codecs.pyc
import _codecs # builtin
# C:\anaconda\lib\encodings\aliases.pyc matches C:\anaconda\lib\encodings\aliases.py
import encodings.aliases # precompiled from C:\anaconda\lib\encodings\aliases.pyc
import operator # builtin
# C:\anaconda\lib\functools.pyc matches C:\anaconda\lib\functools.py
import functools # precompiled from C:\anaconda\lib\functools.pyc
import _functools # builtin
import _locale # builtin
# C:\anaconda\lib\encodings\cp1252.pyc matches C:\anaconda\lib\encodings\cp1252.py
import encodings.cp1252 # precompiled from C:\anaconda\lib\encodings\cp1252.pyc
# zipimport: found 13 names in C:\anaconda\lib\site-packages\runipy-0.1.0-py2.7.egg
# zipimport: found 144 names in C:\anaconda\lib\site-packages\setuptools-3.6-py2.7.egg
Python 2.7.7 |Anaconda 2.0.1 (64-bit)| (default, Jun 11 2014, 10:40:02) [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
Anaconda is brought to you by Continuum Analytics.
Please check out: http://continuum.io/thanks and htt

我遇到的另一个(可能相关的)问题是每次关闭/打开 cygwin 时都需要重置路径。我在 .bashrc 和 .profile 中输入了以下文本，以尝试永久设置路径:

# Set path to python from anaconda install
export PATH=/cygdrive/c/anaconda:$PATH

打开和关闭cygwin后，返回:

$ which python
/usr/bin/python

这可能与设置某些系统环境变量有关吗？

Answer 1

为了在 Cygwin 中使用交互式 Python shell，我使用了 -i 选项。

为了从 Anaconda 安装中获取它，我使用了上面建议的步骤:

$ export PATH=/cygdrive/c/anaconda:$PATH
$ which python
/cygdrive/c/anaconda/python

然后我在 Cygwin 中使用 -i 选项启动 python:

$ python -i
Python 2.7.8 |Anaconda 2.1.0 (64-bit)| (default, Jul  2 2014, 15:12:11) [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
Anaconda is brought to you by Continuum Analytics.
Please check out: http://continuum.io/thanks and https://binstar.org
>>>>

这些库也运行良好。例如，现在可以导入 pandas 库(已通过 Anaconda 安装)。

>>>> import pandas
>>>> pandas.DataFrame
<class 'pandas.core.frame.DataFrame'>

现在为了永久保存，我在我的 bashrc 文件中添加了路径:

$ echo 'export PATH=/cygdrive/c/anaconda:$PATH' >> .bashrc
$ source .bashrc
$ which python
/cygdrive/c/anaconda/python

我希望这会有所帮助。