Cannot install backports.shutil-get-terminal-size, no versions listed

[jason-curtis]

• Pip version: 8.1.2
• Python version: 2.7
• Operating System: Ubuntu 14.04

Description:

Getting a strange error when trying to install the package backports.shutil-get-terminal-size - works in pip 7.0.2 but not in 8.1.2. It seems that the package is not found, maybe because of the '.' in the package name?

What I've run:

repro:

> pip --version
pip 8.1.2 from /.../.tox/py27/local/lib/python2.7/site-packages (python 2.7)
> pip install backports.shutil-get-terminal-size
...
Could not find a version that satisfies the requirement backports.shutil-get-terminal-size (from versions: )

> pip install pip==7.0.2
...
Successfully installed pip-7.0.2
> pip install backports.shutil-get-terminal-size
...
Successfully installed backports.shutil-get-terminal-size-1.0.0

[jamadden]

The registered name on PyPI is backports.shutil_get_terminal_size (https://pypi.python.org/pypi/backports.shutil_get_terminal_size). Try installing it with that name. If you try to visit https://pypi.python.org/pypi/backports.shutil-get-terminal-size you'll find it redirect to the version with the underscores.

Dashes are normalized to underscores, this is behaviour that has changed somewhat in recent pip releases, but is specified by a PEP.

[jason-curtis]

Thanks, it looks like the solution is to update our dependency to the correct name, since the incorrect name will no longer work!

[ulope]

FYI: This is (at least in some cases) related to older versions of devpi: http://doc.devpi.net/latest/announce/server-4.0.html