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Diffstat (limited to 'cherrypy/_cpcompat.py')
| -rwxr-xr-x | cherrypy/_cpcompat.py | 283 |
1 files changed, 0 insertions, 283 deletions
diff --git a/cherrypy/_cpcompat.py b/cherrypy/_cpcompat.py deleted file mode 100755 index 216dddd..0000000 --- a/cherrypy/_cpcompat.py +++ /dev/null @@ -1,283 +0,0 @@ -"""Compatibility code for using CherryPy with various versions of Python. - -CherryPy 3.2 is compatible with Python versions 2.3+. This module provides a -useful abstraction over the differences between Python versions, sometimes by -preferring a newer idiom, sometimes an older one, and sometimes a custom one. - -In particular, Python 2 uses str and '' for byte strings, while Python 3 -uses str and '' for unicode strings. We will call each of these the 'native -string' type for each version. Because of this major difference, this module -provides new 'bytestr', 'unicodestr', and 'nativestr' attributes, as well as -two functions: 'ntob', which translates native strings (of type 'str') into -byte strings regardless of Python version, and 'ntou', which translates native -strings to unicode strings. This also provides a 'BytesIO' name for dealing -specifically with bytes, and a 'StringIO' name for dealing with native strings. -It also provides a 'base64_decode' function with native strings as input and -output. -""" -import os -import sys - -if sys.version_info >= (3, 0): - bytestr = bytes - unicodestr = str - nativestr = unicodestr - basestring = (bytes, str) - def ntob(n, encoding='ISO-8859-1'): - """Return the given native string as a byte string in the given encoding.""" - # In Python 3, the native string type is unicode - return n.encode(encoding) - def ntou(n, encoding='ISO-8859-1'): - """Return the given native string as a unicode string with the given encoding.""" - # In Python 3, the native string type is unicode - return n - # type("") - from io import StringIO - # bytes: - from io import BytesIO as BytesIO -else: - # Python 2 - bytestr = str - unicodestr = unicode - nativestr = bytestr - basestring = basestring - def ntob(n, encoding='ISO-8859-1'): - """Return the given native string as a byte string in the given encoding.""" - # In Python 2, the native string type is bytes. Assume it's already - # in the given encoding, which for ISO-8859-1 is almost always what - # was intended. - return n - def ntou(n, encoding='ISO-8859-1'): - """Return the given native string as a unicode string with the given encoding.""" - # In Python 2, the native string type is bytes. Assume it's already - # in the given encoding, which for ISO-8859-1 is almost always what - # was intended. - return n.decode(encoding) - try: - # type("") - from cStringIO import StringIO - except ImportError: - # type("") - from StringIO import StringIO - # bytes: - BytesIO = StringIO - -try: - set = set -except NameError: - from sets import Set as set - -try: - # Python 3.1+ - from base64 import decodebytes as _base64_decodebytes -except ImportError: - # Python 3.0- - # since CherryPy claims compability with Python 2.3, we must use - # the legacy API of base64 - from base64 import decodestring as _base64_decodebytes - -def base64_decode(n, encoding='ISO-8859-1'): - """Return the native string base64-decoded (as a native string).""" - if isinstance(n, unicodestr): - b = n.encode(encoding) - else: - b = n - b = _base64_decodebytes(b) - if nativestr is unicodestr: - return b.decode(encoding) - else: - return b - -try: - # Python 2.5+ - from hashlib import md5 -except ImportError: - from md5 import new as md5 - -try: - # Python 2.5+ - from hashlib import sha1 as sha -except ImportError: - from sha import new as sha - -try: - sorted = sorted -except NameError: - def sorted(i): - i = i[:] - i.sort() - return i - -try: - reversed = reversed -except NameError: - def reversed(x): - i = len(x) - while i > 0: - i -= 1 - yield x[i] - -try: - # Python 3 - from urllib.parse import urljoin, urlencode - from urllib.parse import quote, quote_plus - from urllib.request import unquote, urlopen - from urllib.request import parse_http_list, parse_keqv_list -except ImportError: - # Python 2 - from urlparse import urljoin - from urllib import urlencode, urlopen - from urllib import quote, quote_plus - from urllib import unquote - from urllib2 import parse_http_list, parse_keqv_list - -try: - from threading import local as threadlocal -except ImportError: - from cherrypy._cpthreadinglocal import local as threadlocal - -try: - dict.iteritems - # Python 2 - iteritems = lambda d: d.iteritems() - copyitems = lambda d: d.items() -except AttributeError: - # Python 3 - iteritems = lambda d: d.items() - copyitems = lambda d: list(d.items()) - -try: - dict.iterkeys - # Python 2 - iterkeys = lambda d: d.iterkeys() - copykeys = lambda d: d.keys() -except AttributeError: - # Python 3 - iterkeys = lambda d: d.keys() - copykeys = lambda d: list(d.keys()) - -try: - dict.itervalues - # Python 2 - itervalues = lambda d: d.itervalues() - copyvalues = lambda d: d.values() -except AttributeError: - # Python 3 - itervalues = lambda d: d.values() - copyvalues = lambda d: list(d.values()) - -try: - # Python 3 - import builtins -except ImportError: - # Python 2 - import __builtin__ as builtins - -try: - # Python 2. We have to do it in this order so Python 2 builds - # don't try to import the 'http' module from cherrypy.lib - from Cookie import SimpleCookie, CookieError - from httplib import BadStatusLine, HTTPConnection, HTTPSConnection, IncompleteRead, NotConnected - from BaseHTTPServer import BaseHTTPRequestHandler -except ImportError: - # Python 3 - from http.cookies import SimpleCookie, CookieError - from http.client import BadStatusLine, HTTPConnection, HTTPSConnection, IncompleteRead, NotConnected - from http.server import BaseHTTPRequestHandler - -try: - # Python 2 - xrange = xrange -except NameError: - # Python 3 - xrange = range - -import threading -if hasattr(threading.Thread, "daemon"): - # Python 2.6+ - def get_daemon(t): - return t.daemon - def set_daemon(t, val): - t.daemon = val -else: - def get_daemon(t): - return t.isDaemon() - def set_daemon(t, val): - t.setDaemon(val) - -try: - from email.utils import formatdate - def HTTPDate(timeval=None): - return formatdate(timeval, usegmt=True) -except ImportError: - from rfc822 import formatdate as HTTPDate - -try: - # Python 3 - from urllib.parse import unquote as parse_unquote - def unquote_qs(atom, encoding, errors='strict'): - return parse_unquote(atom.replace('+', ' '), encoding=encoding, errors=errors) -except ImportError: - # Python 2 - from urllib import unquote as parse_unquote - def unquote_qs(atom, encoding, errors='strict'): - return parse_unquote(atom.replace('+', ' ')).decode(encoding, errors) - -try: - # Prefer simplejson, which is usually more advanced than the builtin module. - import simplejson as json - json_decode = json.JSONDecoder().decode - json_encode = json.JSONEncoder().iterencode -except ImportError: - if sys.version_info >= (3, 0): - # Python 3.0: json is part of the standard library, - # but outputs unicode. We need bytes. - import json - json_decode = json.JSONDecoder().decode - _json_encode = json.JSONEncoder().iterencode - def json_encode(value): - for chunk in _json_encode(value): - yield chunk.encode('utf8') - elif sys.version_info >= (2, 6): - # Python 2.6: json is part of the standard library - import json - json_decode = json.JSONDecoder().decode - json_encode = json.JSONEncoder().iterencode - else: - json = None - def json_decode(s): - raise ValueError('No JSON library is available') - def json_encode(s): - raise ValueError('No JSON library is available') - -try: - import cPickle as pickle -except ImportError: - # In Python 2, pickle is a Python version. - # In Python 3, pickle is the sped-up C version. - import pickle - -try: - os.urandom(20) - import binascii - def random20(): - return binascii.hexlify(os.urandom(20)).decode('ascii') -except (AttributeError, NotImplementedError): - import random - # os.urandom not available until Python 2.4. Fall back to random.random. - def random20(): - return sha('%s' % random.random()).hexdigest() - -try: - from _thread import get_ident as get_thread_ident -except ImportError: - from thread import get_ident as get_thread_ident - -try: - # Python 3 - next = next -except NameError: - # Python 2 - def next(i): - return i.next() - |