What are the Python equivalents to Ruby's bundler / Perl's carton?

Question

I know about virtualenv and pip. But these are a bit different from bundler/carton.

For instance:

• pip writes the absolute path to shebang or activate s

Answer 1

There is a clone pbundler.

The version that is currently in pip simply reads the requirements.txt file you already have, but is much out of date. It's also not totally equivalent: it insists on making a virtualenv. Bundler, I notice, only installs what packages are missing, and gives you the option of giving your sudo password to install into your system dirs or of restarting, which doesn't seem to be a feature of pbundler.

However, the version on git is an almost complete rewrite to be much closer to Bundler's behaviour... including having a "Cheesefile" and now not supporting requirements.txt. This is unfortunate, since requirements.txt is the de facto standard in pythonland, and there's even Offical BDFL-stamped work to standardize it. When that comes into force, you can be sure that something like pbundler will become the de facto standard. Alas, nothing quite stable yet that I know of (but I would love to be proven wrong).