Couldn't we shorten install()

[amr66]

with get_all_dependencies we get all packages to be installed in an list, odered by dependencies, starting with basic packages and ending with those dependending on the foregoing. So we need not to distinguish between packages[] and requiered[] anymore. Also we clean the list froms doubles, so we needn't unique() twice?
just

• check packages list
• without loop: call get_all_dependencies with complete packages list
• delete packages from list, which are already installed (and have the newest version)
• loop over list to install...

[maphew]

I love when complexity collapses! thanks for pointing this out.

I think we could also move a significant block into remove_installed_from(a_list), and then just call for each of packages and reqs. I added a force=False keyword earlier, with intent of being able to override skipping installed packages, but haven't followed up on that yet. These could be combined nicely.

[amr66]

may be you have a look at my pull request for install() an the use off get_all_dependencies()...

[amr66]

"force" could be used if a package is broken and need's a reinstall. So if force is true we don't check versions but do an install with the localy zipped tar.

[maphew]

in a37a755 discovered that tinyows package lists a non-existent dependency. Install, requires and probably a few others might want some ability to handle broken or incomplete package definitions.