-"""
- Python 3 supports
-"""
import sys
-# StringIO module
-try:
- from StringIO import StringIO, BytesIO
-except:
- from io import StringIO, BytesIO
+# Library compatibility
+if sys.version[0] == "2":
+ from HTMLParser import HTMLParser
+ from urllib2 import URLError
+else:
+ from html.parser import HTMLParser
+ from urllib.error import URLError
-# HTMLParser module
+unescape = HTMLParser().unescape
+# According to https://github.com/python/cpython/blob/master/Lib/html/parser.py#L547 ,
+# in python 3.5 maybe I should use
+# from html import unescape
+# but it is a far-future story:)
-try:
- from HTMLParser import HTMLParser
- def unescape(s):
- p = HTMLParser()
- return p.unescape(s)
-except:
- from html import unescape
-# raw_input and map functiion behaviour
-if sys.version[0] == "3":
+# Function compatibility
+# xrange, raw_input, map ,unicde
+if sys.version[0] == "2":
+ lmap = lambda f, a: map(f, a)
+ str2u = lambda x: x.decode('utf-8')
+ u2str = lambda x: x.encode('utf-8')
+else:
+ xrange = range
raw_input = input
lmap = lambda f, a: list(map(f, a))
-else:
- lmap = lambda f, a: map(f, a)
+ str2u = u2str = lambda x: x