Сonvert vCards into suitable for Nokia Series 30+ format

vCard_S30.py

r"""
vCard_S30.py -- Convert vCards into suitable for Nokia Series 30+ format, or
How to solve the only one phone number per contact problem.

1) Import contacts "contacts.vcf" from Google account (vCard format).
2) Place it beside this script.
3) Run the script with Python 2.7.
4) Copy the result "backup.dat" into "Backup" folder on the phone SD card.
5) Restore contacts from backup on the phone.

Tested on Nokia 220.

The MIT License (MIT)
Copyright (c) 2016 in4lio@gmail.com
"""

import sys
import os

CARD = """
BEGIN:VCARD
VERSION:2.1
FN:%s
TEL;VOICE;CELL:%s
END:VCARD
"""

cp  = sys.stdout.encoding if sys.stdout.encoding else 'utf8'
sou = map( str.strip, open( './contacts.vcf' ).read().splitlines())
res = open( './backup.dat', 'w' )
err = 0
mark = None

for s in sou:
    if s == 'BEGIN:VCARD':
        print '{',
        fn = ''
        tel = []
        mark = 'FN:'

    elif s == 'END:VCARD':
        print '}'
        if not fn:
            print '#### ERROR: NO NAME ####'
            err += 1
        elif not tel:
            print '#### ERROR: NO PHONE ####'
            err += 1
        else:
            for i, t in enumerate( tel ):
                res.write( CARD % ( fn + ( ' %d' % i if i else '' ), t ))
        mark = None

    elif mark and s.startswith( mark ):
        if len( s ) > len( mark ):
            fn = s.split( ':', 1 )[ 1 ]
            print s.decode( 'utf8' ).encode( cp, 'replace' ),
        else:
            mark = 'ORG:'

    elif mark and s.startswith( 'TEL' ):
            tel.append( s.split( ':', 1 )[ 1 ])
            print s,

res.close()

print '#### DONE ####'
if err:
    print '%d ignored contact(s)' % err

I installed pycharm and python 2.7 and I have following error:
line 49, in <module> elif s.startswith( mark ): NameError: name 'mark' is not defined

In linux also same error:

$ python2.7 vCard_S30.py Traceback (most recent call last): File "vCard_S30.py", line 52, in <module> elif s.startswith( mark ): NameError: name 'mark' is not defined

I fixed the script, but most likely there is an issue with "contacts.vcf" contents.

Worked like a charm..! thanks!

its work in Nokia 225

i have contacts backup from nokia 215 4G. it's include "phonebook.ib" file and "ibphone_head.in" file. how can i to convert them to vcf file?