Show the most dependant brew packages (packages that were installed manually with the most dependencies count)

brewfat.py

#!/opt/homebrew/bin/python3
import subprocess

curpkg = ''
count = 0
pkgs = {}
for pkg in subprocess.check_output('brew deps --tree --installed', shell=True).decode('utf-8').split('\n'):
    pkg = pkg.strip()
    if len(pkg) > 0 and pkg[0].isalnum():
        curpkg = pkg
    elif len(pkg) > 0:
        count += 1
    else:
        pkgs[curpkg] = count
        curpkg = ''
        count = 0

leaves = subprocess.check_output('brew leaves', shell=True).decode('utf-8').split('\n')
leaves = [leave.strip() for leave in leaves]

for p, d in sorted(pkgs.items(), key=lambda item: int(item[1]), reverse=False):
    if p not in leaves:
        continue
    print(f'Pkg: {p:<20} deps: {d}')