_names.py

from csv import DictReader
from random import choice, random, randint

firstnames = []
lastnames = []
for line in DictReader(open("names.csv")):
    name = line["name"].split("(")[0].strip(" +")
    first, last = name.rsplit(" ", 1)
    firstnames.append(first)
    lastnames.append(last)

consonants = "bcdfghjklmnpqrstvwxyz"
vowels = "aeiouy"

# return a random consonant that is not the same as cur
def newcons(cur):
    # basically putting q in a name never seems funny
    replacements = "bcdfghjklmnprstvwxyz"
    while 1:
        let = choice(replacements)
        if let != cur:
            return let


for i in range(10):
    first = choice(firstnames)
    last = list(choice(lastnames))
    while 1:
        idx = randint(0, len(last) - 1)
        if last[idx] in consonants:
            last[idx] = newcons(last[idx])
            break

    print(first, "".join(last))

names.csv