python - Latest 'pip' fails with "requires setuptools >= 0.8 for dist-info"

Question

Using the recent (1.5) version of pip, I get an error when attempting to update several packages. For example, sudo pip install -U pytz results in failure with:

Wheel installs require setuptools >= 0.8 for dist-info support.
pip's wheel support requires setuptools >= 0.8 for dist-info support.

I don't understand this message (I have setuptools 2.1) or what to do about it.

---

Exception information from the log for this error:

Exception information:
Traceback (most recent call last):
  File "/Library/Python/2.7/site-packages/pip/basecommand.py", line 122, in main
    status = self.run(options, args)
  File "/Library/Python/2.7/site-packages/pip/commands/install.py", line 230, in run
    finder = self._build_package_finder(options, index_urls, session)
  File "/Library/Python/2.7/site-packages/pip/commands/install.py", line 185, in _build_package_finder
    session=session,
  File "/Library/Python/2.7/site-packages/pip/index.py", line 50, in __init__
    self.use_wheel = use_wheel
  File "/Library/Python/2.7/site-packages/pip/index.py", line 89, in use_wheel
    raise InstallationError("pip's wheel support requires setuptools >= 0.8 for dist-info support.")
InstallationError: pip's wheel support requires setuptools >= 0.8 for dist-info support.

Answer 1

This worked for me:

sudo pip install setuptools --no-use-wheel --upgrade

Note it's usage of sudo

UPDATE

On window you just need to execute pip install setuptools --no-use-wheel --upgrade as an administrator. In unix/linux, sudo command is for elevating permissions.

UPDATE

This appears to have been fixed in 1.5.1.