I have to use Python and Django for our application. So I have two versions of Python, 2.6 and 2.7. Now I have installed Django. I could run the sample application for testing Django succesfuly. But how do I make sure whether Django uses the 2.6 or 2.7 version and what version of modules Django uses?
28 Answers
Basically the same as bcoughlan's answer, but here it is as an executable command:
$ python -c "import django; print(django.get_version())"
2.0
If you have pip, you can also do a
pip freeze
You can pipe it through grep to get just the Django version. That is,
josh@villaroyale:~/code/djangosite$ pip freeze | grep Django
Django==1.4.3
As you say you have two versions of Python, I assume they are in different virtual environments (e.g. venv) or perhaps Conda environments.
When you installed Django, it was likely in only one environment. It is possible that you have two different versions of Django, one for each version of python.
In from a Unix/Mac terminal, you can check your Python version as follows:
$ python --version
If you want to know the source:
$ which python
And to check the version of Django:
$ python -m django --version
For Python:
import sys
sys.version
For Django (as mentioned by others here):
import django
django.get_version()
The potential problem with simply checking the version, is that versions get upgraded and so the code can go out of date. You want to make sure that '1.7' < '1.7.1' < '1.7.5' < '1.7.10'. A normal string comparison would fail in the last comparison:
>>> '1.7.5' < '1.7.10'
False
The solution is to use StrictVersion from distutils.
>>> from distutils.version import StrictVersion
>>> StrictVersion('1.7.5') < StrictVersion('1.7.10')
True
There are various ways to get the Django version. You can use any one of the following given below according to your requirements.
Note: If you are working in a virtual environment then please load your python environment
Terminal Commands
python -m django --version
django-admin --version
ordjango-admin.py version
./manage.py --version
orpython manage.py --version
pip freeze | grep Django
python -c "import django; print(django.get_version())"
python manage.py runserver --version
Django Shell Commands
import django django.get_version()
ORdjango.VERSION
from django.utils import version version.get_version()
ORversion.get_complete_version()
import pkg_resources pkg_resources.get_distribution('django').version
(Feel free to modify this answer, if you have some kind of correction or you want to add more related information.)
For checking using a Python shell, do the following.
>>>from django import get_version
>>> get_version()
If you wish to do it in Unix/Linux shell with a single line, then do
python -c 'import django; print(django.get_version())'
Once you have developed an application, then you can check version directly using the following.
python manage.py runserver --version
There is an undocumented utils
versions module in Django:
https://github.com/django/django/blob/master/django/utils/version.py
With that, you can get the normal version as a string or a detailed version tuple:
>>> from django.utils import version
>>> version.get_version()
... 1.9
>>> version.get_complete_version()
... (1, 9, 0, 'final', 0)
The most pythonic way I've seen to get the version of any package:
>>> import pkg_resources;
>>> pkg_resources.get_distribution('django').version
'1.8.4'
This ties directly into setup.py: https://github.com/django/django/blob/master/setup.py#L37
Also there is distutils
to compare the version:
>>> from distutils.version import LooseVersion, StrictVersion
>>> LooseVersion("2.3.1") < LooseVersion("10.1.2")
True
>>> StrictVersion("2.3.1") < StrictVersion("10.1.2")
True
>>> StrictVersion("2.3.1") > StrictVersion("10.1.2")
False
As for getting the python
version, I agree with James Bradbury:
>>> import sys
>>> sys.version
'3.4.3 (default, Jul 13 2015, 12:18:23) \n[GCC 4.2.1 Compatible Apple LLVM 6.1.0 (clang-602.0.53)]'
Tying it all together:
>>> StrictVersion((sys.version.split(' ')[0])) > StrictVersion('2.6')
True
If you want to make Django version comparison, you could use django-nine
(pip install django-nine). For example, if Django version installed in your environment is 1.7.4, then the following would be true.
from nine import versions
versions.DJANGO_1_7 # True
versions.DJANGO_LTE_1_7 # True
versions.DJANGO_GTE_1_7 # True
versions.DJANGO_GTE_1_8 # False
versions.DJANGO_GTE_1_4 # True
versions.DJANGO_LTE_1_6 # False
Python version supported by Django version
Django version Python versions
----------------------------------------
1.0 2.3, 2.4, 2.5, 2.6
1.1 2.3, 2.4, 2.5, 2.6
1.2 2.4, 2.5, 2.6, 2.7
1.3 2.4, 2.5, 2.6, 2.7
1.4 2.5, 2.6, 2.7
1.5 2.6.5, 2.7 and 3.2.3, 3.3 (experimental)
1.6 2.6.5, 2.7 and 3.2.3, 3.3
1.11 2.7, 3.4, 3.5, 3.6, 3.7 (added in 1.11.17)
2.0 3.4, 3.5, 3.6, 3.7
2.1, 2.2 3.5, 3.6, 3.7
To verify that Django can be seen by Python, type python
from your shell. Then at the Python prompt, try to import Django:
>>> import django
>>> print(django.get_version())
2.1
>>> django.VERSION
(2, 1, 4, 'final', 0)
python3 -m django --version
– Aniket Thakurdjango-admin --version
– Trigremm