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Python包的创建、导入、安装

  • 2026-02-03 05:17:25
Python包的创建、导入、安装

写在前面

如果Python的模块过多，可能造成一定的混乱。这时可以通过Python包来管理模块，Python包的实质是一个文件夹，文件夹下包含大量的模块文件。

一、自定义Python包

14.1.1 自定义包创建

在Pycharm中，在project新建package即可：

会自从创建文件夹并生成一个__init__.py的文件。写入模块代码:

14.1.2 自定义包导入

导入方法为包名.模块名调用方法为:包名.模块名.函数名，例如：导入具体功能的语法为:包的__all__变量需要写在__init__.py中

二、第三方Python包

Python环境中存在许多非Python官方发布的第三方包，可以大大的提高开发效率。如:numpy：用于科学计算pandas：用于数据分析pyspark、apache-flink：用于大数据计算matplotlib、pyecharts：图形可视化tensortflow：人工智能这些包在安装Python时并没有内置，因此需要额外安装。

14.2.1 pip安装

pip install 包名通过镜像加速安装:pip install -i 镜像站点 包名

14.2.2 conda安装

神器conda依旧可以使用:conda install 包名mamba安装会快一些:mamba install 包名

14.2.3 Pycharm安装

按照提示打开设置页面：检索并安装:

往期回顾

生信Python速查手册

Python安装(Windows+Linux)

Python的"Rstudio"——Pycharm

码Python神器：jupyter notebook

一文了解Python基础：字面量、注释、变量、类型、运算符

Python判断语句

Python循环语句

Python函数与方法

一文掌握Python数据容器

Python函数进阶

Python文件操作

Python异常

Python模块

如何联系我们

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  137. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-template/src/template/driver/File.php ( 2.41 KB )
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  139. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/runtime/temp/067d451b9a0c665040f3f1bdd3293d68.php ( 11.98 KB )
  140. /yingpanguazai/ssd/ssd1/www/f.mffb.com.cn/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000518s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000709s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000250s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000236s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000468s ]
  6. SELECT * FROM `set` [ RunTime:0.000191s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000573s ]
  8. SELECT * FROM `article` WHERE `id` = 465243 LIMIT 1 [ RunTime:0.000400s ]
  9. UPDATE `article` SET `lasttime` = 1770544905 WHERE `id` = 465243 [ RunTime:0.008973s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000270s ]
  11. SELECT * FROM `article` WHERE `id` < 465243 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000476s ]
  12. SELECT * FROM `article` WHERE `id` > 465243 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.003364s ]
  13. SELECT * FROM `article` WHERE `id` < 465243 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.006178s ]
  14. SELECT * FROM `article` WHERE `id` < 465243 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.023059s ]
  15. SELECT * FROM `article` WHERE `id` < 465243 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002271s ]
0.114124s