初始化flask项目，创建入口文件

迈不过友情╰ 2022-11-22 00:20 169阅读 0赞

# 前言 #

创建完flask创建后，创建文件：

--------------------

# 项目初始化 #

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center]

### 项目创建入口文件： ###

入口文件一般与项目名称同名，  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 1]

*  创建项目包路径—与flask核心相关的内容放到此包里面  
    如果我们在导入包时不成功，需要查看我们的pycharm，是否指向了我们的虚拟环境：  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 2]
 *  创建配置文件：  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 3]
 *  把上面的配置文件装载到我们的框架中：  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 4]
 *  回到入口文件，进行调用我们的APP对象  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 5]

/Users/cunweizhao/.local/share/virtualenvs/fisher-O_wKKplG/bin/Python /Users/cunweizhao/Desktop/code/py/fisher/fisher.py
    Traceback (most recent call last):
      File "/Users/cunweizhao/Desktop/code/py/fisher/fisher.py", line 3, in <module>
        app = create_app()
      File "/Users/cunweizhao/Desktop/code/py/fisher/app/app.py", line 6, in create_app
        app = Flask(_name_)
    NameError: name '_name_' is not defined

*  还是报错：

/Users/cunweizhao/.local/share/virtualenvs/fisher-O_wKKplG/bin/Python /Applications/PyCharm.app/Contents/helpers/pydev/pydevd.py --multiproc --qt-support=auto --client 127.0.0.1 --port 61444 --file /Users/cunweizhao/Desktop/code/py/fisher/fisher.py
    /Applications/PyCharm.app/Contents/helpers/pydev/_pydevd_bundle/pydevd_resolver.py:127: SyntaxWarning: "is not" with a literal. Did you mean "!="?
      if found.get(name) is not 1:
    pydev debugger: process 4156 is connecting

上面这个错误是，因为我的PyCharm版本太低了，准备更新到2020版本

from flask import Flask
    
    # 实例化flask框架
    
    def create_app():
        app = Flask(__name__)
        app.config.from_object('app.config.setting')
        app.config.from_object('app.config.secure')
        return app

from app.app import create_app
    
    app = create_app()
    
    # 判断当前文件是否，是入口文件，如果是才执行
    if __name__ == '__main__':
        app.run(debug=True)

更新最新的编辑器以后，版本为：2020年的，可以直接运行  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyMzcwOTEz_size_16_color_FFFFFF_t_70_pic_center 6]

### app.py内容为： ###

### fisher.py内容为： ###

from app.app import create_app
    
    app = create_app()
    
    
    # 判断当前文件是否，是入口文件，如果是才执行
    if __name__ == '__main__':
        app.run(debug=True)

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