安装python3.7.6小记

ゝ一纸荒年。 2023-07-18 09:43 16阅读 0赞

1、在[https://www.python.org/][https_www.python.org] python官网下载python-3.7.6-amd64.exe文件，并在win10 下自定义安装成功，勾选对所有用户以及增加python3.7路径，勾选安装pip 。

在命令提示符里输入python，验证安装版本。

> D:\\数据分析>python  
> Python 3.7.6 (tags/v3.7.6:43364a7ae0, Dec 19 2019, 00:42:30) \[MSC v.1916 64 bit (AMD64)\] on win32  
> Type "help", "copyright", "credits" or "license" for more information.  
> >>> exit()

2、命令提示符下输入pip，显示pip命令，然后升级pip

> pip install --upgrade pip

> 此时出现错误并告警。  
> WARNING: You are using pip version 19.2.3, however version 20.0.2 is available.  
> You should consider upgrading via the 'python -m pip install --upgrade pip' command.

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1lhbm5jeXdhbmc_size_16_color_FFFFFF_t_70][]

3、输入python -m pip install --upgrade pip ，同样出现上面的错误

这是因为服务器连接超时，使用下方代码即可解决（因为pip源在国外，所以连起来比较慢，可以改用国内的源）

python -m pip install --upgrade pip -i https://pypi.douban.com/simple

4、还是有问题，使用如下命令重新安装，仅针对当前用户安装--user

> python -m pip install --user --upgrade pip  
> Requirement already up-to-date: pip in c:\\users\\yb\\appdata\\roaming\\python\\python37\\site-packages (20.0.2)

5、 查看pip安装版本

> python -m pip --version  
> pip 20.0.2 from C:\\Users\\YB\\AppData\\Roaming\\Python\\Python37\\site-packages\\pip (python 3.7)

6、运行pip install myqr, 出现告警，提示引用到旧的pip。

这种情况以后针对编译会有问题。需要修改pip的PAHT路径为--user安装的路径。

> WARNING: pip is being invoked by an old script wrapper. This will fail in a future version of pip.  
> Please see https://github.com/pypa/pip/issues/5599 for advice on fixing the underlying issue.  
> To avoid this problem you can invoke Python with '-m pip' instead of running pip directly.

参考：[https://github.com/pypa/pip/issues/5599][https_github.com_pypa_pip_issues_5599]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1lhbm5jeXdhbmc_size_16_color_FFFFFF_t_70 1][]

7、重新安装python（不默认安装pip）和pip。下载pip-20.0.2.tar.gz，并解压到对应的目录。输入python setup.py install 安装pip

下载pip网址是：[https://pypi.org/project/pip/\#files][https_pypi.org_project_pip_files]

>  D:\\数据分析相关内容\\pip-20.0.2>python setup.py install  
> Traceback (most recent call last):  
>   File "setup.py", line 8, in <module>  
>     from setuptools import find\_packages, setup  
> ModuleNotFoundError: No module named 'setuptools'

这个问题是因为`setuptools`出问题了,我们只需要下载它的包安装就行了  
去官网下载压缩包:[setuptools\_dowload][setuptools_dowload],下载后解压包,切换到它所在的包文件夹 ,使用`python setup.py install` 来安装即可.

参考：https://www.jianshu.com/p/9e15a695f489

此时再重新进入pip目录下安装pip ，运行成功。

8、升级pip

> D:\\program files\\Python37>pip install --upgrade pip  
> Requirement already up-to-date: pip in d:\\program files\\python37\\lib\\site-packages\\pip-20.0.2-py3.7.egg (20.0.2)

或者输入 ：python -m pip install --upgrade pip -ihttp://pypi.douban.com/simple --trusted-host pypi.douban.com，并回车。

9、安装pip模块 pip install 【模块名字】，例如pip install myqr

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1lhbm5jeXdhbmc_size_16_color_FFFFFF_t_70 2][]

10、下载vscode 并安装  
[https://code.visualstudio.com/][https_code.visualstudio.com]

在vscod的extensions里选择python ，安装，运行helloworld 后提示pylint 未安装，按照提示安装即可，（或者在cmd终端输入 pip install pylint）python的环境就搭建好了

打开一个py文件就可以运行了。

[https_www.python.org]: https://www.python.org/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1lhbm5jeXdhbmc_size_16_color_FFFFFF_t_70]: /images/20230528/adf3afd0d55942c09889d6fa62032eb1.png
[https_github.com_pypa_pip_issues_5599]: https://github.com/pypa/pip/issues/5599
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1lhbm5jeXdhbmc_size_16_color_FFFFFF_t_70 1]: /images/20230528/bca5147db2364632a89135e2596e8a15.png
[https_pypi.org_project_pip_files]: https://pypi.org/project/pip/#files
[setuptools_dowload]: https://link.jianshu.com?t=https://pypi.python.org/pypi/setuptools/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L1lhbm5jeXdhbmc_size_16_color_FFFFFF_t_70 2]: /images/20230528/93e8f5256f474d66b801a17b4ed913b8.png
[https_code.visualstudio.com]: https://code.visualstudio.com/