[英]How to install python3.7 and create a virtualenv with pip on Ubuntu 18.04?
[英]How to install venv with pip on linux ubuntu 18.04 python 3.7
我尝试使用pip
安装venv
,它给了我以下错误消息:
这是命令:
$ pip install venv
和错误:
Collecting venv
Exception:
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 215, in main
status = self.run(options, args)
File "/usr/lib/python2.7/dist-packages/pip/commands/install.py", line 353, in run
wb.build(autobuilding=True)
File "/usr/lib/python2.7/dist-packages/pip/wheel.py", line 749, in build
self.requirement_set.prepare_files(self.finder)
File "/usr/lib/python2.7/dist-packages/pip/req/req_set.py", line 380, in prepare_files
ignore_dependencies=self.ignore_dependencies))
File "/usr/lib/python2.7/dist-packages/pip/req/req_set.py", line 554, in _prepare_file
require_hashes
File "/usr/lib/python2.7/dist-packages/pip/req/req_install.py", line 278, in populate_link
self.link = finder.find_requirement(self, upgrade)
File "/usr/lib/python2.7/dist-packages/pip/index.py", line 465, in find_requirement
all_candidates = self.find_all_candidates(req.name)
File "/usr/lib/python2.7/dist-packages/pip/index.py", line 423, in find_all_candidates
for page in self._get_pages(url_locations, project_name):
File "/usr/lib/python2.7/dist-packages/pip/index.py", line 568, in _get_pages
page = self._get_page(location)
File "/usr/lib/python2.7/dist-packages/pip/index.py", line 683, in _get_page
return HTMLPage.get_page(link, session=self.session)
File "/usr/lib/python2.7/dist-packages/pip/index.py", line 795, in get_page
resp.raise_for_status()
File "/usr/share/python-wheels/requests-2.18.4-py2.py3-none-any.whl/requests/models.py", line 935, in raise_for_status
raise HTTPError(http_error_msg, response=self)
HTTPError: 404 Client Error: Not Found for url: https://pypi.org/simple/venv/
操作系统:linux ubuntu 18.04 python 3.7
谢谢!
在 Ubuntu 18.04 上, python
可执行文件默认绑定到python2.7
(现在是 EOL ); 所以当你这样做时:
pip install venv
您正在尝试在仅与 python3.3+ 兼容的 Python2.7 上安装venv
(见下文),这就是您收到这些错误的原因。
作为旁注,您不需要在python3.3
+ 上安装venv
,因为它默认包含在内,请参阅venv 文档,但是分发维护者可能会在没有此模块的情况下发布 Python,因此您必须使用 package 安装它经理,在这种情况下:
sudo apt install python3-venv -y
通过执行以下命令来创建虚拟环境:
python3 -m venv /path/to/new/virtual/environment
对于以前版本的 Python(在您的情况下为 2.7),您可以使用virtualenv
pip install virtualenv
和创作:
virtualenv -p /usr/bin/python2.7 <path/to/new/virtualenv/>
请注意, -p
标志不是强制性的,它只是为了确保您调用正确的 Python 版本,以防您安装了带有 Python 2 和 ZA7F5F35426B927411FC9231Z381736 的 virtualenv。
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