default PAGER pager does not exist about mwic

[jwilk]

FWIW, pager does exist on Debian and its derivatives:
https://www.debian.org/doc/debian-policy/ch-customized-programs.html#s11.4
(manpages.ubuntu.com and packages.debian.org are not aware of the alternatives mechanism, so they won't find it.)

You are right that pager is not very portable. We should fall back to more which is in POSIX.

I'll get it fixed soon.

[jwilk]

I implemented more fall-back in 9303b14.

I don't like the idea of pure-Python pager, but if you feel strongly about it, feel free to open a separate issue.

[jayvdb]

No, I dont feel strongly about it. more should be fine.
I note that sensible-pager (in sensible-utils) is available for Fedora 23 where it is

#!/bin/sh

${PAGER:-pager} "$@"
ret="$?"
if [ "$ret" -eq 126 ] || [ "$ret" -eq 127 ]; then
more "$@"
ret="$?"
    if [ "$ret" -eq 126 ] || [ "$ret" -eq 127 ]; then
        echo "Couldn't find a pager!" 1>&2
        echo "Set the \$PAGER environment variable to your desired pager." 1>&2
        exit 1
    fi
fi

I doubt it is in OSX, after a quick look on the web, and even less likely to be on other Unix. So skipping that and just using more seems appropriate.

[jwilk]

I've just released 0.5.1, which includes aforementioned fix.