beginner installing nosetests package

Question

I'm trying to install the following as per the learnpythonthehardway tutorial:

1. pip from http://pypi.python.org/pypi/pip
2. distribute from http://pypi.python.org/pypi/distribute
3. nose from http://pypi.python.org/pypi/nose/
4. virtualenv from http://pypi.python.org/pypi/virtualenv

I've visited these links and clicked the download button; each file is in my downloads folder now, and I unarchive/unzipped them- not sure what this means but it seemed required. Are they "installed"? If not, what does it mean to really install them? I've tried typing nosetests in the terminal (as the book says you should), as well as tried easy_install but that doesn't seem to work. It appears my understanding is limited in a number of ways here.

I get the following -bash: nosetests: command not found, but am trying to get:

nosetests . ---------------------------------------------------------------------- Ran 1 test in 0.007s OK

Answer 1

Find out where the nosetests script is. On OSX:

/usr/local/share/nosetests

Execute directly, or set up a bash alias, perhaps in .bash_profile:

alias nosetests='/usr/local/share/python/nosetests'
alias nosetests3='/usr/local/share/python3/nosetests'

Answer 2

This works on mac, it may work on linux

1)Open terminal (Be prepared to enter your password)

2)Type: sudo easy_install pip

3)Type: sudo pip install distribute

4)Type: sudo pip install nose

5)Type: sudo pip install virtualenv

Hope that helps, cheers!