如何从python导入路径中删除当前目录 [英] How to remove current directory from python import path

问题描述

我想使用hg本身的Mercurial存储库.也就是说，我从 https://www.mercurial-scm.org/repo/hg ，并希望在克隆的存储库中运行一些hg命令.问题是，在此克隆hg可执行文件中运行hg时，它尝试从此目录而不是从/usr/lib/pythonVERSION等加载目录中的python模块.据我所知，这是因为Python导入路径sys.path包含空字符串作为第一个条目，可能意味着当前目录". PYTHONPATH环境变量未设置.

I want to work with the mercurial repository of hg itself. That is, I cloned Mercurial from https://www.mercurial-scm.org/repo/hg and want to run some hg commands inside the cloned repository. The problem is that when running hg inside this clone hg executable tries to load its python modules from this directory and not from /usr/lib/pythonVERSION etc. As I understand it this happens because Python import path sys.path contains an empty string as first entry which probably means "current directory". PYTHONPATH environment variable is not set.

问题是如何防止已安装的hg导入错误的"模块.

The questtion is how can I prevent my installed hg from importing "wrong" modules.

推荐答案

我处理该主题的方法是创建一个具有以下内容的/usr/local/bin/hg sh脚本:

The way I would deal with the topic is by creating a /usr/local/bin/hg sh script with the following contents:

#!/bin/sh
PYTHONPATH=/usr/lib/pythonVERSION/site-packages /usr/bin/hg

(基于Ubuntu的发行版使用dist-packages而不是site-packages)

(Ubuntu-based distributives use dist-packages instead of site-packages)

PYTHONPATH是Python解释器尊重的特殊环境变量，用于获取额外的模块导入路径.

PYTHONPATH is a special environment variable respected by Python interpreter to get extra module import paths.

或者，您可以将PYTHONPATH导出到您的shell中，但这会影响您的整个体验.

Alternatively, you can export PYTHONPATH into your shell, but it will affect your whole experience.

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