Why can't pip install the metar distribution even though it's in the search results?

Question

I'm not well-versed in pip as I would like but I'm finding this behavior strange. I want to install the metar package. I find it when I search:

[user@host project]$ pip search metar
...
metar                     - Metar - a package to parse METAR coded weather
                            reports

However, when I try to install it:

[user@host project]$ pip install metar
Downloading/unpacking metar
  Could not find any downloads that satisfy the requirement metar
Cleaning up...
No distributions at all found for metar
Storing complete log in /home/user/.pip/pip.log

If the package shows up in the search results, why can't I install it?

Answer 1

If it is an external download and unverified, you can try the following:

pip install metar --allow-unverified metar