如何设置Cygwin上的PYTHONPATH？ [英] How do I set the PYTHONPATH on Cygwin?

问题描述

在Biopython安装说明中，它说如果Biopython不工作，我应该这样做：

In the Biopython installation instructions, it says that if Biopython doesn't work I'm supposed to do this:

export PYTHONPATH = $ PYTHONPATH'：/ directory / where / you / put / Biopython'

export PYTHONPATH = $PYTHONPATH':/directory/where/you/put/Biopython'

我试图在〜目录中使用Biopython目录的名称（或者所有的过去〜目录），但是当我测试它通过进入Python解释器并输入

I tried doing that in Cygwin from the ~ directory using the name of the Biopython directory (or everything of it past the ~ directory), but when I tested it by going into the Python interpreter and typing in

从Bio.Seq import Seq

From Bio.Seq import Seq

它表示模块不存在。

如何使它不必在Biopython目录中才能导入Seq？

How do I make it so that I don't have to be in the Biopython directory to be able to import Seq?

推荐答案

您可以将目录添加到 sys.path 列表

You can add the directory to your sys.path list

import sys
biopythondir = '/where/you/put/biopython'
if biopythondir not in sys.path:
  sys.path.append(biopythondir)

# import seq

或者，对于一个比环境变量更优雅的解决方案， sys.path ，请参阅如何使用.pth文件扩展sys.path 。

Or, for a more elegant solution than mucking around with environment variables and sys.path, see how to use .pth files to extend sys.path.

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