当我从网上运行CGI脚本时，为什么python无法找到某些模块? [英] Why can't python find some modules when I'm running CGI scripts from the web?

问题描述

我不知道这里可能是什么问题

I have no idea what could be the problem here:

我有一些来自Biopython的模块，当使用交互式提示或通过命令行执行python脚本时，可以轻松导入这些模块.

I have some modules from Biopython which I can import easily when using the interactive prompt or executing python scripts via the command-line.

问题是，当我尝试在可通过网络执行的cgi脚本中导入相同的biopython模块时，出现导入错误"

The problem is, when I try and import the same biopython modules in a web-executable cgi script, I get a "Import Error"

:否 名为Bio

: No module named Bio

这里有什么想法吗?

推荐答案

有以下两种可能性:

• Apache(在Unix上)通常以不同的用户身份和不同的环境运行，以从命令行运行python.尝试制作一个仅打印sys.version和sys.prefix的小脚本，并通过apache和通过命令行比较结果，以确保您在两种环境中都使用相同的python安装.
• Biopython是否安装在您的主目录下，或者仅对普通用户可读?同样，由于apache通常以其他用户身份运行，因此也许您无权访问该位置，因此无法导入它.
• 您可以在尝试导入Biopython之前尝试执行import site吗?可能是某些原因阻止了您通过apache运行时导入网站程序包.

• Apache (on Unix) generally runs as a different user, and with a different environment, to python from the command line. Try making a small script that just prints out sys.version and sys.prefix, and compare the result through apache and via the command line, to make sure that you're running from the same installation of python in both environments.
• Is Biopython installed under your home directory, or only readable just for your normal user? Again, because apache generally runs as a different user, perhaps you don't have access to that location, so can't import it.
• Can you try doing import site before trying to import Biopython? Perhaps something is preventing site packages from being imported when you run through apache.

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