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Python

Chen Wang
Chen Wang
7,371 Points
Posted by Chen Wang
Chen Wang
7,371 Points

Why can't I install wsgiref in python virtual environment?

Actually I don't know what it does and I just saw a project which requires it.

When I try to install it by 

pip install wsgiref

I saw the following:

Collecting wsgiref
  Using cached wsgiref-0.1.2.zip
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 20, in <module>
      File "/private/var/folders/4f/n582rdzj62d3t43440bd5_5c0000gn/T/pip-build-uf5ja573/wsgiref/setup.py", line 5, in <module>
        import ez_setup
      File "/private/var/folders/4f/n582rdzj62d3t43440bd5_5c0000gn/T/pip-build-uf5ja573/wsgiref/ez_setup/__init__.py", line 170
        print "Setuptools version",version,"or greater has been installed."
                                 ^
    SyntaxError: Missing parentheses in call to 'print'

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/4f/n582rdzj62d3t43440bd5_5c0000gn/T/pip-build-uf5ja573/wsgiref

However, I can't even find this directory "private/var/folders/4f/n582rdzj62d3t43440bd5_5c0000gn/T/pip-build-uf5ja573/wsgiref".

I have googled everything related this but I can't find a solution.

1 Answer

Kenneth Love
STAFF
Kenneth Love
Treehouse Guest Teacher
Kenneth Love
Kenneth Love
Treehouse Guest Teacher

Looks like it's installing a Python 2 version of wsgiref with Python 3's pip.

What do you get when you run pip --version?

Chen Wang
Chen Wang
7,371 Points
Chen Wang
Chen Wang
7,371 Points

It's a so small problem and I spent several hours to figure this out... It seems that the wsgiref has already been included as a standard library in Python 3...

The tutorial I saw in the internet is done by python 2, which requires a extra wsgiref installation. In python 2 this print syntax, which is lack of parentheses, so it works well. However, python 3 doesn't support this syntax. They didn't fix this installation problem, because we can just directly import the wsgiref in python 3 without installing anything.

These version issues is really confusing. Thanks for your help, Kenneth!

I love your instruction videos, btw.

Looking forward to your Django one.