Python Django manage.py runserver 无效语法
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Django manage.py runserver invalid syntax
提问by Bharata
I am developing a web in Ubuntu using django. Everything works normal. Now, I want to change my computer which use Windows. When I try to runserver, it gives:
我正在使用 django 在 Ubuntu 中开发网络。一切正常。现在，我想更换使用 Windows 的计算机。当我尝试运行服务器时，它给出：
E:\DEGNet>py manage.py runserver
File "manage.py", line 14
) from exc
^
SyntaxError: invalid syntax
E:\DEGNet>py
Python 3.6.3 (v3.6.3:2c5fed8, Oct 3 2017, 18:11:49) [MSC v.1900 64 bit (AMD64)]
on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>
As shown above, I have installed Python 3.6.3. I have installed django and other necessary library using pip3 too.
如上所示，我已经安装了 Python 3.6.3。我也使用 pip3 安装了 django 和其他必要的库。
Edit: manage.py file, it is a default manage.py that I get when generating the project.
编辑：manage.py 文件，它是我在生成项目时得到的默认 manage.py。
#!/usr/bin/env python
import os
import sys
if __name__ == "__main__":
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "DEGNet.settings")
try:
from django.core.management import execute_from_command_line
except ImportError as exc:
raise ImportError(
"Couldn't import Django. Are you sure it's installed and "
"available on your PYTHONPATH environment variable? Did you "
"forget to activate a virtual environment?"
) from exc
execute_from_command_line(sys.argv)
回答by suria sarath
I faced same problem but now solved with this cmd:
我遇到了同样的问题，但现在用这个 cmd 解决了：
python3 manage.py runserver
回答by arulmr
Edit your manage.pyfile as given below:
编辑您的manage.py文件，如下所示：
#!/usr/bin/env python
import os
import sys
if __name__ == "__main__":
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "DEGNet.settings")
try:
from django.core.management import execute_from_command_line
except ImportError as exc:
raise ImportError(
"Couldn't import Django. Are you sure it's installed and "
"available on your PYTHONPATH environment variable? Did you "
"forget to activate a virtual environment?"
)
execute_from_command_line(sys.argv)
Note that from excis removed from the file. It is not required in the manage.pyfile.
请注意，from exc已从文件中删除。manage.py文件中不需要它。
回答by HAL 9000
- Make sure that your virtualenv is activated. Suppose the name of your virtualenv is pythonpy, then run these commands:
virtualenv pythonpy workon pythonpy #After running these command, you should see something like this but your file path may be different: "(pythonpy) C:\Users\ MyDjangoProject \
- Then go to the project folder which contains manage.py (pythonpy) C:\Users\ MyDjangoProject \ #Same path as above
- Then simple run the server:
python manage.py runserver #This will give you the project path to the localhost. Copy and paste the URL in the browser and should work.
- 确保您的 virtualenv 已激活。假设您的 virtualenv 的名称是 pythonpy，然后运行以下命令：
virtualenv pythonpy workon pythonpy #运行这些命令后，你应该看到类似这样的东西，但你的文件路径可能不同：“（pythonpy）C:\Users\MyDjangoProject\
- 然后转到包含 manage.py (pythonpy) C:\Users\ MyDjangoProject \ #Same 路径的项目文件夹
- 然后简单地运行服务器：
python manage.py runserver #这将为您提供本地主机的项目路径。将 URL 复制并粘贴到浏览器中，应该可以正常工作。
回答by Hendra Sirait
i've also got this error but solve it by installing pipenv first,
我也有这个错误，但先安装 pipenv 解决它，
try run this first
尝试先运行这个
pipenv shell django==2.1
then you should be able to run
那么你应该能够运行
python3 manage.py runserver
回答by 7guyo
Ensure you're running the app from virtualenv i.e if you've created a virtualenv for your project, then activate the venv first.
确保您正在从 virtualenv 运行应用程序，即如果您已经为您的项目创建了一个 virtualenv，那么首先激活 venv。
me@debian:~/Desktop/webapp$source venv/bin/activate
(venv) me@debian:~/Desktop/webapp$python manage.py runserver
回答by ADEL NAMANI
You just forgot to activate the virtual environment , do it like that :
您只是忘记激活虚拟环境，请这样做：
source /home/adel/Dev/Python/DjangoProjects/myproject/venv/bin/activate
And than you can run the server :
然后你可以运行服务器：
python manage.py runserver
回答by Micah Walter
What's happening is that the wrong version of python is being used, which may not have all the dependencies in your virtualenv. I get this error when using sudo manage.py: using sudochanges the version of python which is being used to /usr/bin/python.
发生的情况是使用了错误版本的 python，它可能没有你的 virtualenv 中的所有依赖项。使用时出现此错误sudo manage.py：使用sudo更改正在使用的python版本/usr/bin/python。
The problem is solved by specifying which version of python to use when using sudo:
通过指定使用时使用哪个版本的python来解决问题sudo：
sudo /path/to/my/env/bin/python manage.py makemigrations
回答by Mountain Scott
Try (from command line):
尝试（从命令行）：
python3 manage.py runserver
If I used this (no python3) instead:
如果我使用这个（没有 python 3）：
python manage.py runserver
the error persisted. This method allows you to not have to alter manage.py (so you can keep "from exc").
错误仍然存在。此方法允许您不必更改 manage.py（因此您可以保持“from exc”）。
回答by user9521248
I have no problem running this way：
我这样运行没有问题：
sudo ./**(your path)**/bin/python manage.py runserver
回答by Serge Kishiko
I've got also the same issue with Python 3.4.4and Django 2.0. I tried the last solution, nothing works (no need to delete that: from excon the line 14).
我在Python 3.4.4和Django 2.0 中也遇到了同样的问题。我尝试了最后一个解决方案，没有任何效果（无需删除：from exc在第 14 行）。
Just run your server with:
只需运行您的服务器：
python manage.py runserver
Instead of:
代替：
./manage.py runserver #or '.\manage.py runserver' for Windows
