[berdario]

You have a plethora of similar tools in the python world as well:

- Pythonz

- Conda

- Pew (disclaimer: I'm the author)

- Virtualenvwrapper

- Pyenv

Etc.

If you argue that people might not move to the latest and greatest as soon as possible due to the fact that people don't build their own interpreter, I can definitely agree with it: python users seem to truly prefer the python version that already comes pre-installed with their linux distribution

[reledi]

> python users seem to truly prefer the python version that already comes pre-installed with their linux distribution

Definitely. It's not that Python doesn't have the tools to switch between versions, but it's not as prevalent as is in the Ruby community. Most Python users will start their program with shebangs like

    #!/usr/bin/env python

or if they want Python 3+

    #!/usr/bin/env python3

while not necessarily using tools like virtualenv and virtualenvwrapper.

I feel like shebangs are not as commonly used in Ruby, instead you use tools and your Gemfile to specify Ruby version.

[alxndr]

Unfortunately that's lead me to need to specify my intended ruby version in several places on a ruby project (.ruby-version, Gemfile, CI config file...)

[weaksauce]

Well, Ruby version and the versions of all your dependencies and the versions of gems for different environments.

[kennyledet]

pythonz looks great, thanks