bash multi-python pip update scripts

_excluded_updates.py

#!/usr/local/bin/python3
from sys import stdin
from os import path

excl_f = path.expanduser("~/.config/pipupgrade/exclude")

with open(excl_f, "r") as f:
    excl = []
    for line in f:
        excl.append(line[:-1])

# grab the module name from "pip list -o" output:
mod_name = lambda l: l.split(maxsplit=1)[0]
is_excluded = lambda s: s in excl

for line in stdin:
    mod = mod_name(line)
    x = is_excluded(mod)
    lt = "=>" if x else "  "
    rt = "\t<= not auto-upgraded" if x else ""
    print(f"{lt} {line[:-1]}{rt}")

pipoutdated

#!/bin/bash
COL_BLUE="\x1b[34;01m"
COL_RESET="\x1b[39;49;00m"
PYVERS=${PYVERS:-"2.7 3.5 3.6 3.7"}
# note: python time unnoticable, compared to pip network delay
#EXCL="$HOME/.config/pipupgrade/exclude"

for i in ${PYVERS}; do
    echo -e $COL_BLUE$(python$i -m pip --version):$COL_RESET
    python$i -m pip list -o | _excluded_updates.py
done

pipupgrade

#!/bin/bash
COL_BLUE="\x1b[34;01m"
COL_RESET="\x1b[39;49;00m"
# make the default version the last - so script installations
#  work appropriatly
PYVERS=${PYVERS:-"2.7 3.5 3.7 3.6"}
# lock out these from batch upgrade:
EXCL="$HOME/.config/pipupgrade/exclude"

for i in ${PYVERS}; do
    echo -e $COL_BLUE$(python$i -m pip --version):$COL_RESET
    # if arguments passed, then upgrade/install those in all the python versions;
    # else grab the outdated list from each python version, and upgrade those;
    (( ${#@} > 0 )) && upgradeable="$@" || \
        upgradeable="$(python$i -m pip list -o | cut -d ' ' -f1 | fgrep -vf $EXCL)"
    if [ -z "$upgradeable" ]; then
        continue
    fi
    # check if we're owner, or need sudo
    [ -O $(which python$i) ] && PIP="python$i -m pip" || PIP="sudo -H python$i -m pip"
    $PIP install -U ${upgradeable}
done

A simple hack to keep my "public" (non venv) python libraries up to date.

I use this on Ubuntu 16.04.

I let Ubuntu ppa keep my Python3.5 version up to date.
I build and install myself the other python versions (2.7, 3.6, 3.7dev).

There may be symlinks I've made along the way (e.g. ln -s /usr/local/bin/python3.6 /usr/local/bin/python) to make this all work the way I've wanted. Other than such simple things, this should be ok (let me know if it's not).

I think python2.7 builds w/ altinstall are not polite - they install items which are not version-numbered, so on that rare occaision when I build 2.7, I have to go and manually fix that. This is not a problem with 3.6 and 3.7 builds (which are well-behaved under make altinstall).
It doesn't matter much, because 2.7 increasingly doesn't matter much anymore.