import socket
import subprocess
import sys
+import itertools
try:
except ImportError: # Python 2
import htmlentitydefs as compat_html_entities
-try:
- import html.parser as compat_html_parser
-except ImportError: # Python 2
- import HTMLParser as compat_html_parser
-
try:
import http.client as compat_http_client
except ImportError: # Python 2
try:
from urllib.parse import unquote as compat_urllib_parse_unquote
except ImportError:
- def compat_urllib_parse_unquote(string, encoding='utf-8', errors='replace'):
+ def compat_urllib_parse_unquote_to_bytes(string):
+ """unquote_to_bytes('abc%20def') -> b'abc def'."""
+ # Note: strings are encoded as UTF-8. This is only an issue if it contains
+ # unescaped non-ASCII characters, which URIs should not.
+ if not string:
+ # Is it a string-like object?
+ string.split
+ return b''
+ if isinstance(string, str):
+ string = string.encode('utf-8')
+ # string = encode('utf-8')
+
+ # python3 -> 2: must implicitly convert to bits
+ bits = bytes(string).split(b'%')
+
+ if len(bits) == 1:
+ return string
+ res = [bits[0]]
+ append = res.append
+
+ for item in bits[1:]:
+ try:
+ append(item[:2].decode('hex'))
+ append(item[2:])
+ except:
+ append(b'%')
+ append(item)
+ return b''.join(res)
+
+ compat_urllib_parse_asciire = re.compile('([\x00-\x7f]+)')
+
+ def new_compat_urllib_parse_unquote(string, encoding='utf-8', errors='replace'):
+ """Replace %xx escapes by their single-character equivalent. The optional
+ encoding and errors parameters specify how to decode percent-encoded
+ sequences into Unicode characters, as accepted by the bytes.decode()
+ method.
+ By default, percent-encoded sequences are decoded with UTF-8, and invalid
+ sequences are replaced by a placeholder character.
+
+ unquote('abc%20def') -> 'abc def'.
+ """
+
+ if '%' not in string:
+ string.split
+ return string
+ if encoding is None:
+ encoding = 'utf-8'
+ if errors is None:
+ errors = 'replace'
+
+ bits = compat_urllib_parse_asciire.split(string)
+ res = [bits[0]]
+ append = res.append
+ for i in range(1, len(bits), 2):
+ foo = compat_urllib_parse_unquote_to_bytes(bits[i])
+ foo = foo.decode(encoding, errors)
+ append(foo)
+
+ if bits[i + 1]:
+ bar = bits[i + 1]
+ if not isinstance(bar, unicode):
+ bar = bar.decode('utf-8')
+ append(bar)
+ return ''.join(res)
+
+ def old_compat_urllib_parse_unquote(string, encoding='utf-8', errors='replace'):
if string == '':
return string
res = string.split('%')
try:
if not item:
raise ValueError
+ if not re.match('[0-9a-fA-F][0-9a-fA-F]',item[:2]):
+ raise ValueError
pct_sequence += item[:2].decode('hex')
rest = item[2:]
if not rest:
string += pct_sequence.decode(encoding, errors)
return string
+ compat_urllib_parse_unquote = new_compat_urllib_parse_unquote
+
try:
compat_str = unicode # Python 2
except NameError:
pass
return _terminal_size(columns, lines)
+try:
+ itertools.count(start=0, step=1)
+ compat_itertools_count = itertools.count
+except TypeError: # Python 2.6
+ def compat_itertools_count(start=0, step=1):
+ n = start
+ while True:
+ yield n
+ n += step
__all__ = [
'compat_HTTPError',
'compat_getenv',
'compat_getpass',
'compat_html_entities',
- 'compat_html_parser',
'compat_http_client',
'compat_http_server',
+ 'compat_itertools_count',
'compat_kwargs',
'compat_ord',
'compat_parse_qs',