Python 如何解决自动生成的 manage.py 上的 SyntaxError？
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How to solve SyntaxError on autogenerated manage.py?
提问by Frank
I'm following the Django tutorial https://docs.djangoproject.com/es/1.10/intro/tutorial01/
我正在关注 Django 教程https://docs.djangoproject.com/es/1.10/intro/tutorial01/
I've created a "mysite" dummy project (my very first one) and try to test it without altering it.
我创建了一个“mysite”虚拟项目（我的第一个）并尝试在不更改它的情况下对其进行测试。
django-admin startproject mysite
cd mysite
python manage.py runserver
File "manage.py", line 14
) from exc
^
SyntaxError: invalid syntax
I'm getting a SyntaxError on a file that was generated by the system itself. And I seem unable to find anyone else who has gone through the same issue.
我在系统本身生成的文件上收到 SyntaxError 错误。而且我似乎找不到其他遇到过同样问题的人。
I'll add some data of my setup in case it may be of use
我会添加一些我的设置数据，以防它可能有用
$ vpython --version
Python 2.7.12
$ pip --version
pip 9.0.1 from /home/frank/.local/lib/python2.7/site-packages (python 2.7)
$ python -m django --version
1.10.6
Can somebody please help me?
有人能帮帮我吗？
Update: adding contents of autogenerated manage.py
更新：添加自动生成的 manage.py 的内容
cat manage.py
#!/usr/bin/env python3
import os
import sys
if __name__ == "__main__":
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "mysite.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 lobsang
Make sure which python version you connect the django with (Make sure to activate the virtual env if you are using any).
确保您使用哪个 python 版本连接 django （如果您正在使用任何虚拟环境，请确保激活虚拟环境）。
When you install django using just
当您仅使用安装 django 时
pip install django
then you have to run
那么你必须跑
python manage.py startapp <yourApp name>
else if you have used:
否则，如果您使用过：
pip3 install django
then you have to run
那么你必须跑
python3 manage.py startapp <yourapp name>
Refer:
参考：
回答by Fernando
You can try with python3 manage.py runserver.
It works for me.
您可以尝试使用python3 manage.py runserver. 这个对我有用。
回答by Aditya Sinha
you should activate your virtual environment . In terminal -> source env/bin/activate now there will be ----> (env) in your terminal displayed !
你应该激活你的虚拟环境。在终端 -> source env/bin/activate 现在将在您的终端中显示 ----> (env) ！
now it will work -> runserver .
现在它将工作 - > runserver 。
No need to delete exc part !
无需删除 exc 部分！
回答by Martin Karari
I was experiencing the same but this was solved by running with specific python 3.6 as below:
我遇到了同样的问题，但是通过使用特定的 python 3.6 运行解决了这个问题，如下所示：
python3.6 manage.py runserver
回答by Vipin Mohan
Its a simple solution actually one i just ran into. Did you activate your virtual environment?
它是一个简单的解决方案，实际上是我刚刚遇到的一个。您是否激活了虚拟环境？
回答by Sbk3824
It's best to create a virtual environment and run your Django code inside this virtual environment, this helps in not changing your existing environments. Here are the basic steps to start with the virtual environment and Django.
最好创建一个虚拟环境并在这个虚拟环境中运行你的 Django 代码，这有助于不改变你现有的环境。以下是从虚拟环境和 Django 开始的基本步骤。
Create a new Directory and cd into it.
mkdir test,cd testInstall and Create a Virtual environment.
python3 -m pip install virtualenv virtualenv venv -p python3Activate Virtual Environment:
source venv/bin/activateInstall Django:
pip install djangoStart a new project:?
django-admin startproject myprojectcd to your project and Run Project:
cd myproject,python manage.py runserverYou can see your project here :
http://127.0.0.1:8000/
创建一个新目录并 cd 到其中。
mkdir test,cd test安装并创建虚拟环境。
python3 -m pip install virtualenv virtualenv venv -p python3激活虚拟环境：
source venv/bin/activate安装 Django：
pip install django开始一个新项目：?
django-admin startproject myprojectcd 到您的项目并运行项目：
cd myproject,python manage.py runserver你可以在这里看到你的项目：
http://127.0.0.1:8000/
回答by Esir Kings
Just activate your virtual environment.
只需激活您的虚拟环境。
回答by Frank
After testing with precise instructions (using python2 or python3 instead of just "python") I've constated that no matter what the tutorial says, this works ONLY with python3.
在使用精确的指令（使用 python2 或 python3 而不仅仅是“python”）进行测试后，我已经确定无论教程说什么，这仅适用于 python3。
回答by Wasique Ansari
You must activate virtual environment where you have installed django. Then run this command - python manage.py runserver
您必须激活已安装 django 的虚拟环境。然后运行这个命令 - python manage.py runserver
回答by Otsuki Takaya
I solved same situation.
我解决了同样的情况。
INSTALLED VERSION
安装版本
python 3.6, django 2.1
蟒蛇 3.6，Django 2.1
SITUATION
情况
I installed Node.js in Windows 10. After python manage.py runservercaused error.
我在 Windows 10 中安装了 Node.js。在python manage.py runserver导致错误之后。
ERROR
错误
File "manage.py", line 14
) from exc
^
SyntaxError: invalid syntax
REASON
原因
My python path changed to python-2.7 from python-3.6. (3.6 is correct in my PC.)
我的python路径从python-3.6改为python-2.7。（3.6 在我的 PC 中是正确的。）
SOLUTION
解决方案
Fix python path.
修复python路径。
