Parse output of `pm list packages -f` on Android

store_titles.py

import fileinput
import re
import http.client
import html.parser

URI_PREFIX = '/store/apps/details?id='
REGEXP_JAVA_PACKAGE = r"(?P<pkg>([a-z_][a-z0-9_]*(\.[a-z_][a-z0-9_]*)*))$"
REGEXP_PACKAGE_LIST = r"package:(?P<path>/.*\.apk)=" + REGEXP_JAVA_PACKAGE
#REQUEST_HEADERS = {'Accept-Language': 'en'}

empty_none = lambda s: s or ''
csv = lambda i: ';'.join(i)

class PlayStoreAppNameHTMLParser(html.parser.HTMLParser):
    def __init__(self):
        super().__init__()
        # __app_name_found replaced by truth check on app_name
        self.__inner_div_follows = False
        self.__app_name_follows = False
        self.app_name = None
    def handle_starttag(self, tag, attrs):
        if tag != 'div' or self.app_name:
            return
        if self.__inner_div_follows:
            self.__app_name_follows = True
            self.__inner_div_follows = False
        elif ('itemprop', 'name') in attrs:
            self.__inner_div_follows = True
    def handle_data(self, data):
        if self.__app_name_follows:
            self.app_name = data.strip()
            self.__app_name_follows = False

def app_type(path):
    if path.startswith('/system/app'):
        return 'System'
    elif path.startswith('/data/app'):
        return 'Store'
    elif path.startswith('/mnt/asec'):
        return 'Protected'
    else:
        return 'Other'

def app_name(conn, package):
    conn.request('GET', URI_PREFIX + package)
    response = conn.getresponse()
    # read all the data before next request, even if we don't have to parse it
    data = response.read()
    if (response.status != http.client.OK): return
    # TODO just decoding the first ~128K seems enough, use errors='ignore' then
    parser = PlayStoreAppNameHTMLParser()
    parser.feed(data.decode('UTF-8'))
    return parser.app_name

playstore = http.client.HTTPSConnection('play.google.com')

print(csv(['Name', 'Type', 'Package name']))
for line in fileinput.input():
    linematch = re.match(REGEXP_PACKAGE_LIST, line)
    if (not linematch): continue
    atype = app_type(linematch.group('path'))
    aname = app_name(playstore, linematch.group('pkg'))
    print(csv([empty_none(aname), atype, linematch.group('pkg')]), flush=True)

playstore.close()

print(csv([empty_none(aname), atype, linematch.group('pkg')]), flush=True)
^
SyntaxError: invalid syntax