Split Google Contacts VCF file containing multiple contact cards

split_contacts.py

import os

END_VCARD = "END:VCARD\n"

in_file = "./contacts.vcf"
out_file_format = "./contacts_out/contact_{}.vcf"

with open(in_file, "r") as input_file:
    contents_as_string = input_file.read()
    arr = [e+END_VCARD for e in contents_as_string.split(END_VCARD) if e]
    os.makedirs(os.path.dirname(out_file_format), exist_ok=True)
    for i, vcf in enumerate(arr):
        out_file_name = out_file_format.format(i)
        print(f"Wrote below to {out_file_name}:\n", vcf, sep="")
        with open(out_file_name, "x") as output_file:
            output_file.write(vcf)