找不到满足所有包的要求的版本

Question

I have recently configured python3 for other application and running on the same machine where python 2.7 was running.. I see python3 applications are working fine with command python -m pip install package-name and python3 manage.py runserver command

But I am facing trouble with my existing application and new application with following issue while installing package

You are using pip version 7.1.0, however version 9.0.3 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
Collecting django-allauth==0.27.0
  Could not find a version that satisfies the requirement django-allauth==0.27.0 (from versions: )
No matching distribution found for django-allauth==0.27.0

This is the command I used,

pip install django-allauth==0.27.0

Anybody know how to resolve it?

This is the command output,

pip 7.1.0 from /Users/overflow/.virtualenvs/ion/lib/python2.7/site-packages (python 2.7)

Answer 1

Try installing another version:

pip install django-allauth

Make sure you're using the version of pip that corresponds to the version of Python you are using:

pip --version

Alternatively, be explicit in which version you use:

python3 -m pip install django-allauth

or

python2 -m pip install django-allauth

Answer 2

try

pip install --upgrade pip

first
and then

pip install django-allauth==0.27.0

Answer 3

I'm little confused with you'r version problem, but you can choose you'r python vertion using py-2.x or py -3.x . For example:

py -3.6 -m pip install djangp-allauth==0.27.0

py -2.7 -m pip install djangp-allauth==0.27.0

Answer 4

我通过在每个项目中卸载PIP然后重新安装它来修复它。可能不是一个好的解决方案，但这是有效的。