I'm following the Django tutorial 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.
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.
I'll add some data of my setup in case it may be of use
$ 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
Adding contents of autogenerated manage.py
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)
Make sure which python version you connect the django with (Make sure to activate the virtual env if you are using any).
When you install django using just
pip install django
then you have to run
python manage.py startapp <yourApp name>
else if you have used:
pip3 install django
then you have to run
python3 manage.py startapp <yourapp name>
Refer:
You can try with python3 manage.py runserver.
It works for me.
You should activate your virtual environment.
In terminal, source env/bin/activate. Depending on your shell, something like (env) should now be a part of the prompt.
And now runserver should work. No need to delete exc part!
Just activate your virtual environment.
For running Python version 3, you need to use python3 instead of python.
The final command will be:
python3 manage.py runserver
I was experiencing the same but this was solved by running with specific python 3.6 as below:
python3.6 manage.py runserver
Its a simple solution actually one i just ran into. Did you activate your virtual environment?
my terminal screenshot
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.
Create a new Directory and cd into it.
mkdir test , cd test
Install and Create a Virtual environment.
python3 -m pip install virtualenv virtualenv venv -p python3
Activate Virtual Environment: source venv/bin/activate
Install Django: pip install django
Start a new project: django-admin startproject myproject
cd to your project and Run Project:
cd myproject,
python manage.py runserver
You can see your project here: http://127.0.0.1:8000/
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.
The solution is straightforward. the exception from manage.py
is because when running the command with python, Django is unable
to predict the exact python version,
say you may have 3.6, 3.5, 3.8 and maybe just one of this versions pip module was used to install Django
to resolve this either use:
./manage.py `enter code here`<command>
or using the exact python version(x.x) stands:
pythonx.x manage.py <command>
else the use of virtual environments can come in handy
because its relates any pip django module easily to python version
create env with pyenv or virtualenv
activate (e.g in virtualenv => virtualenv env)
run using python manage.py command
I solved same situation.
INSTALLED VERSION
python 3.6, django 2.1
SITUATION
I installed Node.js in Windows 10. After python manage.py runserver caused error.
ERROR
File "manage.py", line 14
) from exc
^
SyntaxError: invalid syntax
REASON
My python path changed to python-2.7 from python-3.6. (3.6 is correct in my PC.)
SOLUTION
Fix python path.
The following could be the possible reasons,
1. The virtual environment is not enabled
2. The virtual environment is enabled but the python version is different
To create virtual environment
$ virtualenv --python=python3 venv
To activate the virtual environment
$ source venv/bin/activate
You must activate virtual environment where you have installed django.
Then run this command
- python manage.py runserver
Also, the tutorial recommends that a virtual environment is used (see Django documentation: https://docs.djangoproject.com/en/2.0/topics/install/#installing-official-release"). You can do this with pipenv --three. Once you've installed django with pipenv install django and activated your virtual environment with pipenv shell, python will refer to python3 when executing python manage.py runserver.
Pipenv documentation:
https://pipenv.kennethreitz.org/
Activate your virtual environment then try collecting static files, that should work.
$ source venv/bin/activate
$ python manage.py collectstatic
You should start your Virtual Environment,
How to do it?
First with terminal cd into the directory containing manage.py
Then type $source <myvenv>/bin/activate
replace with you Virtual Environment name, without angular brackets.
Another issue can that your root directory and venv mis-match.
The structure should be something like this:
|-website
..facebook
..manage.py
..myvenv
..some other files
That is your virtual environment and manage.py should be in the same folder. Solution to that is to restart the project. If you are facing this error you must haven't coded anything yet, so restart.
I had the exact same error, but then I later found out that I forget to activate the conda environment which had django and other required packages installed.
Solution: Create a conda or virtual environment with django installed,
and activate it before you use the command:
$ python manage.py migrate
The django-admin maybe the wrong file.I met the same problem which I did not found on a different computer the same set-up flow.
After comparing two project, I found several difference at manage.py and settings.py, then I realized I created 2.0 django project but run it with python2.
runwhich django-adminin iterm
/Library/Frameworks/Python.framework/Versions/3.6/bin/django-admin
It looks like I got a django-admin in python3 which I didn't know why.So I tried to get the correct django-amin.
pip show django
then I got
Name: Django
Version: 1.11a1
Summary: A high-level Python Web framework that encourages rapid development and clean, pragmatic design.
Home-page: https://www.djangoproject.com/
Author: Django Software Foundation
Author-email: foundation#djangoproject.com
License: BSD
Location: /Library/Python/2.7/site-packages
Requires: pytz
In/Library/Python/2.7/site-packages, I found the django-admin
/Library/Python/2.7/site-packages/django/bin/django-admin.py
So I created project again by
/Library/Python/2.7/site-packages/django/bin/django-admin.py startproject myproject
then run
cd myproject
python manage.py runserver
succeeded🎉
We have to create a virtual environment inside the project, not outside the project..
Then it will solve..
I landed on the same exact exception because I forgot to activate the virtual environment.
I was also getting the same error.
Then I went back to the folder where the environment folder is there and I forgot to activate a Virtual environment so only I was getting this error.
Go to that folder and activate the virtual environment.
$ source env/bin/activate
I had this issue (Mac) and followed the instructions on the below page to install and activate the virtual environment
https://packaging.python.org/guides/installing-using-pip-and-virtual-environments/
$ cd [ top-level-django-project-dir ]
$ python3 -m pip install --user virtualenv
$ python3 -m venv env
$ source env/bin/activate
Once I had installed and activated the virtual env I checked it
$ which python
Then I installed django into the virtual env
$ pip install django
And then I could run my app
$ python3 manage.py runserver
When I got to the next part of the tutorial
$ python manage.py startapp polls
I encountered another error:
File "manage.py", line 16
) from exc
^
SyntaxError: invalid syntax
I removed
from exc
and it then created the polls directory
Same issue occurred to me,But what I did was,
Just Replaced:
python manage.py runserver
with
python3 manage.py runserver
in the terminal(macOsX). Because I am using Python version 3.x
I encountered the same error when using pipenv. The issue was caused by not accessing Django correctly from within the virtual environment.
The correct steps using pipenv:
Activate virtual environment: pipenv shell
Install Django: pipenv install django
Create a project: django-admin startproject myproject
Navigate into project folder: cd myproject
Start Django with pipenv: pipenv run python manage.py runserver
Note: Pipenv will use the correct python version and pip within the virtual environment.
It seems you have more than one version of Python on your computer.
Try and remove one and leave the only version you used to develop your application.
If need be, you can upgrade your version, but ensure you have only one version of Python on your computer.
What am I wondering is though the django is installed to the container it may not be in the host machine where you are running the command. Then how will the command run. So since no above solutions worked for me.
I found out the running container and get into the running container using docker exec -it <container> bash then ran the command inside docker container. As we have the volumed container the changes done will also reflect locally. What ever command is to be run can be run inside the running container
For future readers,
I too had the same issue. Turns out installing Python directly from website as well as having another version from Anaconda caused this issue. I had to uninstall Python2.7 and only keep anaconda as the sole distribution.
Have you entered the virtual environment for django? Run python -m venv myvenv if you have not yet installed.
I had same problem and could solve it. It is related to the version of Django you've installed, some of them are not supported by python 2.7. If you have installed Django with pip, it means that you are installing the latest version of that which probably is not supported in python 2.7, You can get more information about it here. I would suggest to python 3 or specify the version of Django during installing (which is 1.11 for python 2.7).
I solved this problem to uninstall the multiple version of Python.
Check Django Official Documentation for Python compatibility.
"Python compatibility
Django 2.1 supports Python 3.5, 3.6, and 3.7. Django 2.0 is the last version to support Python 3.4."
manage.py file
#!/usr/bin/env python
import os
import sys
if __name__ == '__main__':
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'work.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)
If removing "from exc" from second last line of this code will generate another error due to multiple versions of Python.
I use Ubuntu 15.10 and zsh (don't know if it can help)
So I try to install django:
pip install django
Downloading/unpacking django
Downloading Django-1.9.5-py2.py3-none-any.whl (6.6MB): 6.6MB downloaded
Installing collected packages: django
Successfully installed django
Cleaning up...
Everything works fine. When I do pip freeze I can see django is installed.
then:
django-admin startproject mysite
But I got this issue:
zsh: command not found: django-admin
I found an alternative solution.
With find / -name django-admin I found django-admin in myHome/.local/bin/django-admin.
So instead of django-admin startproject mysite I use the full path myHome/.local/bin/django-admin startproject mysite
thanks to #Evert, this is why I got the problem.
his comment:
This is likely because you either used the --user option to pip
install, or you set up pip in such a way that it automatically does
that. Hence, everything gets installed in $HOME/.local. You may want
to add $HOME/.local/bin to your $PATH for the future.
When I had the problem on my mac I just uninstall django and install it again but with root permissions. Now it's working good)
pip3 uninstall django
sudo pip3 install django
I faced a similar issue on Mac OS but I moved in another way. I used Virtual Environments.
First, create the virtual environment
python3 -m venv django-env
Then, use this environment
source django-env/bin/activate
Next, install django
python -m pip install django
Finally test django is working
django-admin startproject mysite
In my opinion, it is better to have environments isolated to avoid O.S. settings
I was facing the same problem after updating my Mac OS to Catalina, and shell from bash to zsh.
None of the commands would work, as if all my paths were deleted.
Looking at Brady Huang's answer, doing something similar worked for me.
I made sure django was installed correctly by reinstalling it
pip3 uninstall django
pip3 install django
I found django installed under:
/Library/Frameworks/Python.framework/Versions/3.8/bin/django-admin
by running:
sudo ln -s /Library/Frameworks/Python.framework/Versions/3.8/bin/django-admin usr/local/bin
I was able to run django-admin again.
My adjango-admin is located in
~/Library/Python/3.7/bin/django-admin
But I don't have it in my linked PATH which is looks like this
/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/mysql/bin
So I create a symlink to one of the bin I have in my PATH
sudo ln -s ~/Library/Python/3.7/bin/django-admin /usr/local/bin
It solves my issue
You may be having some dependency issues.
So to avoid it happen again you need to create a virtual environment only for the current project you are doing. Like this you can avoid having issues and isolate your application.
You can follow this question to create a virtual environment and add django in it.
Then, as soon as you create the virtual environment and activated you can pip install django and check to see whether it is installed.
Tried many stuffs but then installing the python version 3.11 and using a virtual env solved the issue. Earlier I was using 3.8.9. Hope this helps someone
what worked for me!
I just Added the following in my ~/.zshrc file( you can also add it in the ~/.bashrc file if you are not using zsh terminal)
export PATH=$PATH:$HOME/.local/bin
This solution will work not only for you django-admin command but all other python package commands that would behave in a similar way.
My Question is pretty Simple.
Whenever I use virtualenv environment in my Django project it gives the following error when executed this command
python manage.py runserver
File "manage.py", line 8, in
from django.core.management import execute_from_command_line
ImportError: No module named django.core.management
But when i use root and give the same command it seems to work perfectly. Why does this Happen? I am in the virtualenv so it means i am the root person by default.How can i fix this error?
I had seen many forums but couldn't find related to mine.
This happens because you have installed django in the system-wide Python interpreter; possibly by doing something like sudo pip install django.
Once you create a virtual environment and activate it - it contains no packages. The concept of a virtual environment is that it allows you to install Python packages without affecting the global Python installation.
So once you activate a virtual environment, you have to install packages in that virtual environment; so you should pip install django (note: without sudo) once you activate the virtual environment; like this:
$ virtualenv sample_env
...
$ source sample_env/bin/activate
(sample_env) $ pip install django
A virtual environment is a virtual environment for Python; it does not control what the user is that is logged into the system.
Finally, as a general rule - you should not be using root for development purposes as doing so can easily compromise your system.
Yup i have same error while running Django. I also have enabled virtual environment. But I was still getting error.
Solution to this problem is using this command to install any python package
python -m pip install django
This will definitely solve your problem. As it solved mine.
I've created a n new directory, a virtualenv and installed a django-toolbelt inside it. The django-version should be 1.8 but when I call 'django-admin.py version' it says 1.6. So when I start a new project it creates a 1.6. I thought virtualenv was supposed to prevent this. What am I doing wrong?
Edit: I think it has to do with the PATH (?). Like it's calling the wrong django-admin version. I'm on Windows 7. Still don't know how to fix it.
I came across this problem too. In the official document, I found that, in a virtual environment, if you use the command 'django-admin', it would search from PATH usually in '/usr/local/bin'(Linux) to find 'django-admin.py' which is a symlink to another version of django. This is the reason of what happened finally.
So there are two methods to solve this problem:
re-symlink your current version django-admin(site-packages/django/bin/django-admin.py) to 'usr/local/bin/django-admin' or 'usr/local/bin/django-admin.py'
REMIND: This is a kind of global way so that it will effects your other django projects, so I recommend the second method
cd to your_virtual_env/lib/python3.x/site-packages/django/bin/(of course you should activate your virtual environment), and then use 'python django-admin.py startproject project_name project_full_path' to create django project
Try and install Django into the virtual environment as well:
pip install django
It should install the latest version, you can also specify a particular version (let's say 1.8.2) if you need to:
pip install django==1.8.2
Either way you'll have the correct version of Django in your virtual environment and it should work as you expect then.
You can also use the following command to see what version you have installed:
pip show django
Update:
It seems that you have the correct version installed in your virtual environment, but for some reason your Windows 7 use the system Django installation instead while you use manage.py or django-admin.py directly. However, you can use python manage.py or python django-admin.py instead, which seems to work as expected (and use the virtualenv Django installation).
I had the same problem. Could be related to your zsh/bash settings.
I realized that using zsh (my default) I would get django-admin version 1.11 despite the Django version was 2.1! When I tried the same thing with bash I would get django-admin version 2.1 (the correct version). Certainly a misconfiguration.
So, I strongly suggest you check your zsh or bash settings to check for paths you might have.
Create a virtual environment for a project:
$ mkdir cd my_project_folder
$ cd my_project_folder
$ virtualenv venv
$ source venv/bin/activate
And now install django
(venv) ~$ pip install django==1.8
manage.py runserver in virtualenv using wrong django version
pip / virtualenv / django installation issue
I am working in ubuntu. I have installed the django==1.3 in root earlier. Now I created local virtual environment name as local_env using virtualenv. Then I activated the local_env using source command.But I didn't install the django in this local_env environment. When I try to create the django sample project using
django-admin.py startproject sampleproject
it is working perfectly. My question is,It didn't prevent the local_env from the root environment ?. I mean it didn't raise the error like django-admin.py command didn't found. Please put the comments if any doubts.
django-admin.py is in the OS path. When you try executing it inside your virtual environment, the python will look into it's VE's sys.path and if not found it will search through the OS path, found it from the root environment and so there were no errors shown.
According to the docs, the django-admin.py command is installed on your system path, so if the virtualenv doesn't find this command, it will probably look in the global sys path and find a match.
If you want to use a different version of django to the one installed on your sys path, you will need to install it in your vritualenv using a package manager like pip and this will then take precedent over the global django-admin.py
To make sure you're doing this right, load your the virtualenv using
dhanna#dhanna:~$ source local_env/bin/actviate
If successful, your prompt should have the virtualenv name at the beginning - eg
(local_env)dhanna#dhanna:~$
Note that if you activate the virtualenv in one shell, but run the python interpreter inside a separate shell, you will be using the global interpreter and therefore have the global django-admin.py module available.
Next you'll want to install the django module
(local_env)dhanna#dhanna:~$ pip install django
To check if django is installed inside your virtual env, you can use the package management tool pip and pass the freeze argument
(local_env)dhanna#dhanna:~$ pip freeze
Now you can use the virtualenv's version of django-admin.py
(local_env)dhanna#dhanna:~$ django-admin.py startproject sampleproject