我正在尝试在Ubuntu Server 10.04上安装带有一些软件包的虚拟环境,但是当我尝试创建虚拟环境时,我收到一条错误消息,说它无法访问pypi来安装分发。
机器可以访问apt,但不是很多,我想将全局包的数量保持在最低限度。我也可以手动引入Python包,这是我有虚拟环境后的计划。
该机器安装了python-setuptools,python-pip,python-virtualenv。
如何在离线或靠近它的机器上使用virtualenv?
答案 0 :(得分:3)
通过virtualenv.py源代码,我们可以看到它在创建venv时使用pip来安装setuptools / pip / wheel。因此,我们可以使用pip中提供的离线安装选项,通过:
# --extra-search-dir can be set multiple times, then it produces a list
virtualenv --extra-search-dir path/to/setuptoolsPackages --no-download venv
一个完整的例子
# Download pip, setuptools and wheel package to current dir.
ls
# argparse-1.4.0-py2.py3-none-any.whl pip-8.1.1-py2.py3-none-any.whl setuptools-20.7.0-py2.py3-none-any.whl wheel-0.29.0-py2.py3-none-any.whl
# Offline version.
# Set extra-search-dir to current dir.
time virtualenv --extra-search-dir ${PWD} --no-download venv
# New python executable in /home/me/wcftest/venv/bin/python3.5
# Also creating executable in /home/me/wcftest/venv/bin/python
# Installing setuptools, pip, wheel...done.
#
# real 0m3.670s
# user 0m1.350s
# sys 0m0.161s
# On-line.
time virtualenv venv2
# New python executable in /home/me/wcftest/venv2/bin/python3.5
# Also creating executable in /home/me/wcftest/venv2/bin/python
# Installing setuptools, pip, wheel...done.
#
# real 0m8.419s
# user 0m1.624s
# sys 0m0.179s
有关详细说明,请参阅this blog。
答案 1 :(得分:0)
在此SO问题中找到答案:What's the proper way to install pip, virtualenv, and distribute for Python?
我按照Walker Hale IV的建议,它工作正常。请关闭重复。