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One liner

calendar

python3 -m calendar 2026

this

python3 -c "import this"

http server

python3 -m http.server 8000 --bind 0.0.0.0

pretty-print JSON

echo '{"name":"Alice","age":30}' | python3 -m json.tool

validate a JSON

python3 -m json.tool data.json

list installed

python3 -c "help('modules')"

password gen

python3 -c "import secrets,string;print(''.join(secrets.choice(string.ascii_letters+string.digits) for _ in range(32)))"

password gen with special chars

python3 -c "import secrets,string;print(''.join(secrets.choice(string.ascii_letters+string.digits+string.punctuation) for _ in range(32)))"

get public IP

python3 -c "import urllib.request; print(urllib.request.urlopen('https://api.ipify.org').read().decode())"

if an IP belongs to the subnet

for ip in 192.168.100.9 10.74.153.205;   do python3 -c "import ipaddress; print('$ip', ipaddress.ip_address('$ip') in ipaddress.ip_network('10.74.144.0/20'))"; done