Обработка анкет

applications = [
         'name=Аня,phone=8800234 ,city=москва',
         'name=КОЛЯ,phone=8800900871 ,city=МОСКВА',
         'name=Валентина,phone=7950900871 ,city=волгоград',
         'name=,phone=7999901871,city=москва',
         'name=Иван,phone=7999901871,city=москва',
         'name=Инга,phone=,city=москва'
 
] 
 
def check_phone(applications):
 
def check_city(city):
 
def check_application(application):
 
def find_valid_applications(applications):

print(*filter(lambda x: re.search(r'(?i)phone=[78]\d{9}\b.*?city=москва\b', x), applications), sep='\n')

for i in applications:
    test = bool(re.search(r'(?i)phone=[78]\d{9}\b.*?city=москва\b', i))
    print(f'{i} -- {test}')

def check_phone(item):
    parts = item.split(',')
    phone = parts[1].split('=')[1].strip()
    return phone and ((phone[0] == '8' or phone[0] == '7') and len(phone) == 10)
 
 
def check_city(item):
    parts = item.split(',')
    city = parts[2].split('=')[1].strip()
    return city.lower() == 'москва'
 
 
def check_application(item):
    return check_city(item) and check_phone(item)
 
 
def find_valid_applications(applications):
    result = []
    for item in applications:
        if check_application(item):
            result.append(item)
    return result
 
 
# ----------------------------------------------------------------
applications = [
    'name=Аня,phone=8800234 ,city=москва',
    'name=КОЛЯ,phone=8800900871 ,city=МОСКВА',
    'name=Валентина,phone=7950900871 ,city=волгоград',
    'name=,phone=7999901871,city=москва',
    'name=Иван,phone=7999901871,city=москва',
    'name=Инга,phone=,city=москва'
]
for application in find_valid_applications(applications):
    print(application)

applications = [
'name=А ня,phone=8 8 0 0 2 3 4 ,city=м о с к в а',
'name=К О Л Я,phone=88009 00871 ,city=МОСК ВА',
'name=Вален тина,phone=795 0900871 ,city=волг оград',
'name=,phone=7999 901871,city=мо ск ва',
'name=Ив ан,phone=799 990 1871,city=м ос ква',
'name=Ин г а,phone=,city=м о с к в а'
]
 
def check_phone(phone):
    phone = phone.replace(' ','')
    return len(phone) == 10 and phone[0] in '78'
 
def check_city(city):
    return city.lower().replace(' ','') == 'москва'
 
def check_application(a):
    d = {}
    for e in a.split(','):
        L,_,R = e.partition('=')
        d[L] = R
    return check_phone(d['phone']) and check_city(d['city'])
 
def find_valid_applications(applications):
    return (f'{a} --- {check_application(a)}' for a in applications)
 
print(*find_valid_applications(applications), sep='\n')
# name=А ня,phone=8 8 0 0 2 3 4 ,city=м о с к в а --- False
# name=К О Л Я,phone=88009 00871 ,city=МОСК ВА --- True
# name=Вален тина,phone=795 0900871 ,city=волг оград --- False
# name=,phone=7999 901871,city=мо ск ва --- True
# name=Ив ан,phone=799 990 1871,city=м ос ква --- True
# name=Ин г а,phone=,city=м о с к в а --- False