virtualenv未安装成功

Microsoft Windows [版本 10.0.17763.1039]
(c) 2018 Microsoft Corporation。保留所有权利。

C:\Users\Administrator>python
Python 3.7.1 (v3.7.1:260ec2c36a, Oct 20 2018, 14:57:15) [MSC v.1915 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> exit
Use exit() or Ctrl-Z plus Return to exit
>>> exit()

C:\Users\Administrator>cd \

C:\>cd envs

C:\envs>pip unistall virtualenv
ERROR: unknown command "unistall" - maybe you meant "uninstall"

C:\envs>pip uninstall virtualenv
Uninstalling virtualenv-20.0.4:
Would remove:
    c:\python37\lib\site-packages\virtualenv-20.0.4.dist-info\*
    c:\python37\lib\site-packages\virtualenv\*
    c:\python37\scripts\virtualenv.exe
Proceed (y/n)? y
Successfully uninstalled virtualenv-20.0.4
You are using pip version 10.0.1, however version 20.0.2 is available.
You should consider upgrading via the 'python -m pip install --up

qq_慕斯卡1333655 2020-02-16

源自：自定义包的实现 3-2 python虚拟环境之virtualenv

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4回答

好帮手乔木 2020-02-17 10:46:09

同学你好：

同学看下virtualenv的版本是哪个版本的（可以使用pip list查看所有安装的第三方模块），若为最新版本（3.x），可能会存在问题。同学可以下载其他版本的virtualenv使用。例：pip install virtualenv==16.4

在安装之前先卸载之前安装的版本：

pip uninstall virtualenv

同学的虚拟环境可能没有创建成功。

(1）首先请确保在创建虚拟环境时成功创建（执行virtualenv xxx命令时，最后出现了successfully ....的字样），若没有出现，则证明未成功创建该虚拟环境；

（2）其次若已经成功创建虚拟环境，则进入到Scripts所在目录，并与视频中该目录下的内容进行对比，观察是否缺少对应的文件或者目录；

出现上述的情况，同学需要重新创建虚拟环境。

如果我解决了同学的问题，请采纳！学习愉快^_^。

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提问者 qq_慕斯卡1333655 2020-02-17 09:35:37

后来成功了

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提问者 qq_慕斯卡1333655 2020-02-17 09:08:59

无法激活

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提问者 qq_慕斯卡1333655 2020-02-16 22:46:41

C:\envs>python -m pip install --upgrade pip
Collecting pip
Downloading https://files.pythonhosted.org/packages/54/0c/d01aa759fdc501a58f431eb594a17495f15b88da142ce14b5845662c13f3/pip-20.0.2-py2.py3-none-any.whl (1.4MB)
    100% |████████████████████████████████| 1.4MB 81kB/s
Installing collected packages: pip
Found existing installation: pip 10.0.1
    Uninstalling pip-10.0.1:
      Successfully uninstalled pip-10.0.1
Successfully installed pip-20.0.2

仍然没有成功

C:\envs>pip install virtualenv
Collecting virtualenv
Using cached virtualenv-20.0.4-py2.py3-none-any.whl (4.6 MB)
Requirement already satisfied: filelock<4,>=3.0.0 in c:\python37\lib\site-packages (from virtualenv) (3.0.12)
Requirement already satisfied: appdirs<2,>=1.4.3 in c:\python37\lib\site-packages (from virtualenv) (1.4.3)
Requirement already satisfied: six<2,>=1.9.0 in c:\python37\lib\site-packages (from virtualenv) (1.14.0)
Requirement already satisfied: importlib-metadata<2,>=0.12; python_version < "3.8" in c:\python37\lib\site-packages (from virtualenv) (1.5.0)
Requirement already satisfied: distlib<1,>=0.3.0 in c:\python37\lib\site-packages (from virtualenv) (0.3.0)
Requirement already satisfied: zipp>=0.5 in c:\python37\lib\site-packages (from importlib-metadata<2,>=0.12; python_version < "3.8"->virtualenv) (2.2.0)
Installing collected packages: virtualenv
Successfully installed virtualenv-20.0.4

C:\envs>virtualenv diango3.0.3
created virtual environment in 578ms CPython3Windows(dest=C:\envs\diango3.0.3, clear=False, global=False) with seeder FromAppData pip=latest setuptools=latest wheel=latest app_data_dir=C:\Users\Administrator\AppData\Local\pypa\virtualenv\seed-v1 via=copy

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