点子为什么下载这么慢?(如何解决问题?) [英] why is pip so SLOW to download? (how to troubleshoot?)
问题描述
我可以例如 Python覆盖率和pip安装在本地快速打包该软件包，没有任何问题，但是 pip安装范围花费了永远.在Ubuntu 12.04上的虚拟环境中使用pip 1.3.1.知道会是什么延误吗?
I can wget e.g. python coverage and pip install the package locally quickly and without any problem, but pip install coverage takes forever. Using pip 1.3.1 in a virtual env on Ubuntu 12.04. Any idea what could be the hold-up?
推荐答案
当Donald Stufft在 pip中回答时问题864 ，是因为 pip 爬行了许多要查找软件包sdists的页面，并且此行为是从 easy_install 继承的.如果您删除了该功能，则某些程序包将不起作用，而有些人启动了新的PEP来删除此外部链接行为: PEP 438-过渡到PyPI上的发布文件托管
As Donald Stufft answered in pip issue 864, it happens because pip crawls a lot of pages looking for package sdists, and this behavior was inherited from easy_install. Some packages do not work if you remove that feature, and some guys started a new PEP to remove this external links behavior: PEP 438 - Transitioning to release-file hosting on PyPI
唐纳德说在实施PEP438之前，您还可以使用Crate.io的受限API，pip install -i https://restricted.crate.io/，这只会安装直接托管的版本."
Donald said "Until PEP438 is implemented you can also use the restricted API of Crate.io, pip install -i https://restricted.crate.io/ this will only install releases that are directly hosted."
但是作为 virtualenv邮件列表中提到的马库斯·史密斯，则可以下载该软件包及其依赖项，它们会忽略PyPI并使用您的下载目录: http://www.pip-installer.org/en/latest/cookbook.html#fast-local-installs
But as Marcus Smith mentioned in the virtualenv mailing list, you can download the package and its dependencies, and them ignore PyPI and use your download directory: http://www.pip-installer.org/en/latest/cookbook.html#fast-local-installs
使用 https://restricted.create.io 来避免外部链接行为的示例:
Example using https://restricted.create.io to avoid the external links behavior:
$ pip install -i https://restricted.crate.io/ coverage
参考文献:
References:
- https://github.com/pypa/pip/issues/864
- http://www.python.org/dev/peps/pep-0438/
- https://groups.google.com/forum/?fromgroups =#！topic/python-virtualenv/UDWsPHKHvjY
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