A simple script to count UK MPs, since Parliament began, by first name, so I could post https://twitter.com/sil/status/958750576900296706

mpnames.py

#!/usr/bin/env python3
"""Daft script to count MPs by first name.
Expects to find people.json from https://github.com/mysociety/parlparse/tree/master/members
Run as "python3 mpnames.py Keir" or similar.
Written to answer Jess Phillips' question at https://twitter.com/sil/status/958750576900296706
"""
import json, pprint, sys
fp = open("people.json", encoding="utf-8")
data = json.loads(fp.read())
fp.close()

memberships_by_person_id = {}
for m in data["memberships"]:
    p = m.get("person_id")
    if not p: continue
    if m.get("organization_id") == "house-of-lords": continue
    if not memberships_by_person_id.get(p): memberships_by_person_id[p] = []
    memberships_by_person_id[p].append(m)

by_name = {}
for p in data["persons"]:
    names = []
    m = memberships_by_person_id.get(p["id"])
    if not m: continue
    if p.get("other_names"):
        for on in p["other_names"]:
            if on.get("given_name"):
                names.append(on["given_name"])
    for n in names:
        if not by_name.get(n): by_name[n] = []
        by_name[n].append({"name": [x for x in p.get("other_names") if x.get("note") == "Main"], "person": p, "memberships": m})

counter = sorted([(x, len(by_name[x])) for x in by_name.keys()], key=lambda a:a[1], reverse=True)
print("Ten most popular names")
for f in counter[:10]:
    print("%s (%s)" % f)

print()
print("MPs with the name '%s'" % (sys.argv[1],))
matches = by_name[sys.argv[1]]
for m in matches:
    print(("%s %s %s" % (m["name"][0].get("honorific_prefix", ""), m["name"][0].get("given_name", ""), m["name"][0].get("family_name", ""))).strip())
print("(%s MP%s)" % (len(matches), "" if len(matches) == 1 else "s"))