Fix Contacts country code - Add country code to those numbers which have missing country code at start to your vcf file

vcf_countrycode.py

import re

# Edit these 
SOURCE_VCF = "27jan22.vcf" # Your source file
COUNTRY_CODE = "+91" # Country code you want to add (Tested for India only)
OUTPUT_VCF = "27jan22-modded.vcf" # The output file you want

# Dont edit below

to_save = []

with open(SOURCE_VCF, "r") as vcf:
        for line in vcf:
                result = re.findall(r"[0-9]{3}-[0-9]{3}-[0-9]{4}", line) 
                if len(result) and '+1' not in line and '1-' not in line and '+' not in line:
                        print(result[0])
                        newline = line.replace(result[0],"+91" + result[0].replace("-", ""))
                        to_save.append(newline)
                else:
                        to_save.append(line)

with open(OUTPUT_VCF, "w") as new_vcf:
        for line in to_save:
                new_vcf.write(line)