Question

我尝试了非常简单的python，但不知道错误从何而来。

__init__.py（位置：/var/www/project/stuff/__init__.py）

from flask import Flask

app = Flask(__name__)

home.py（位置：/var/www/project/stuff/home.py）

from stuff import app

@app.route("/", methods=['GET', 'POST'])
@app.route("/home", methods=['GET', 'POST'])
def home():
    return "This is Home"

run.py（位置：/var/www/project/run.py）

from stuff import app

if __name__ == "__main__":
    app.run(debug==True)

我遇到ModuleNoFoundError: No module named 'stuff'异常。

我在做什么错了？

这是我的project.wsgi（位置：/var/www/project）

import sys
import logging
logging.basicConfig(stream=sys.stderr)
sys.path.insert(0,"/var/www/project/stuff/")

from home import app as application

和回溯是

[Thu Nov 22 12:54:06.145378 2018] [wsgi:error] File "/var/www/project/project.wsgi", line 6, in <module>
[Thu Nov 22 12:54:06.145384 2018] [wsgi:error] from home import app as application
[Thu Nov 22 12:54:06.145390 2018] [wsgi:error] File "/var/www/project/stuff/home.py", line 1, in <module>
[Thu Nov 22 12:54:06.145394 2018] [wsgi:error]     from stuff import app
[Thu Nov 22 12:54:06.145407 2018] [wsgi:error] ModuleNotFoundError: No module named 'stuff'
[Thu Nov 22 12:54:06.227614 2018] [wsgi:error] mod_wsgi (pid=3172): Target WSGI script '/var/www/project/project.wsgi' cannot be loaded as Python module., referer: http://52.195.0.108/
[Thu Nov 22 12:54:06.227668 2018] [wsgi:error] mod_wsgi (pid=3172): Exception occurred processing WSGI script '/var/www/project/project.wsgi'., referer: http://52.195.0.108/
[Thu Nov 22 12:54:06.227898 2018] [wsgi:error] Traceback (most recent call last):, referer: http://52.195.0.108/
[Thu Nov 22 12:54:06.227927 2018] [wsgi:error] File "/var/www/project/project.wsgi", line 6, in <module>, referer: http://52.195.0.108/
[Thu Nov 22 12:54:06.227933 2018] [wsgi:error]   from home import app as application, referer: http://52.195.0.108/
[Thu Nov 22 12:54:06.227940 2018] [wsgi:error] File "/var/www/project/stuff/home.py", line 1, in <module>, referer: http://52.195.0.108/
[Thu Nov 22 12:54:06.227944 2018] [wsgi:error]   from stuff import app, referer: http://52.195.0.108/
[Thu Nov 22 12:54:06.227957 2018] [wsgi:error] ModuleNotFoundError: No module named 'stuff', referer: http://52.195.0.108/

Answer 1

您要在模块搜索路径中添加软件包目录：

sys.path.insert(0,"/var/www/project/stuff/")

不要这样做。 Python在stuff中找不到/var/www/project/stuff/包。您应该导入stuff.home，而不是home：

import sys
import logging
logging.basicConfig(stream=sys.stderr)
sys.path.insert(0,"/var/www/project")

from stuff.home import app as application

您从app导入home有点..向后。您可能需要重组项目，以在单独的子模块中创建Flask app对象和起始路径：

stuff/__init__.py：

from . import app, home

application = app.app

stuff/app.py：

from flask import Flask

app = Flask(__name__)

stuff/home.py：

from .app import app

@app.route("/", methods=['GET', 'POST'])
@app.route("/home", methods=['GET', 'POST'])
def home():
    return "This is Home"

您可以完全删除run.py。开发时，请使用flask命令行应用程序运行代码：

FLASK_APP=stuff flask run

我使用.相对于当前软件包进行导入，因此您可以更轻松地将stuff重命名为其他名称。

Answer 2

当我使用

home.py（位置：/var/www/project/stuff/home.py）

from flask import Flask

app = Flask(__name__)

@app.route("/", methods=['GET', 'POST'])
@app.route("/home", methods=['GET', 'POST'])
def home():
    return "This is Home"

run.py（位置：/var/www/project/run.py）

from stuff import app

if __name__ == "__main__":
    app.run(debug==True)

这有效

ModuleNoFoundError：尝试运行Flask应用程序时，没有名为“ stuff”的模块异常

2 个答案: