mirror of
https://github.com/SickGear/SickGear.git
synced 2024-12-11 21:53:37 +00:00
cec4ed573d
Switched out sqlite3 libs in favour of SQLAlchemy v0.9, will gradually migrate dialects and scheme to be fully SQLAlchemy compliant for using there ORM with sessions instead of direct. Fixed getEpisode function to stop making unrequired scene number conversions on already converted data thats available now from cache.
383 lines
11 KiB
Python
383 lines
11 KiB
Python
"""Compatibility code for using CherryPy with various versions of Python.
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CherryPy 3.2 is compatible with Python versions 2.3+. This module provides a
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useful abstraction over the differences between Python versions, sometimes by
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preferring a newer idiom, sometimes an older one, and sometimes a custom one.
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In particular, Python 2 uses str and '' for byte strings, while Python 3
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uses str and '' for unicode strings. We will call each of these the 'native
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string' type for each version. Because of this major difference, this module
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provides new 'bytestr', 'unicodestr', and 'nativestr' attributes, as well as
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two functions: 'ntob', which translates native strings (of type 'str') into
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byte strings regardless of Python version, and 'ntou', which translates native
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strings to unicode strings. This also provides a 'BytesIO' name for dealing
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specifically with bytes, and a 'StringIO' name for dealing with native strings.
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It also provides a 'base64_decode' function with native strings as input and
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output.
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"""
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import os
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import re
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import sys
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import threading
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if sys.version_info >= (3, 0):
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py3k = True
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bytestr = bytes
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unicodestr = str
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nativestr = unicodestr
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basestring = (bytes, str)
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def ntob(n, encoding='ISO-8859-1'):
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"""Return the given native string as a byte string in the given
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encoding.
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"""
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assert_native(n)
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# In Python 3, the native string type is unicode
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return n.encode(encoding)
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def ntou(n, encoding='ISO-8859-1'):
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"""Return the given native string as a unicode string with the given
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encoding.
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"""
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assert_native(n)
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# In Python 3, the native string type is unicode
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return n
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def tonative(n, encoding='ISO-8859-1'):
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"""Return the given string as a native string in the given encoding."""
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# In Python 3, the native string type is unicode
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if isinstance(n, bytes):
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return n.decode(encoding)
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return n
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# type("")
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from io import StringIO
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# bytes:
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from io import BytesIO as BytesIO
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else:
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# Python 2
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py3k = False
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bytestr = str
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unicodestr = unicode
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nativestr = bytestr
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basestring = basestring
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def ntob(n, encoding='ISO-8859-1'):
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"""Return the given native string as a byte string in the given
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encoding.
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"""
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assert_native(n)
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# In Python 2, the native string type is bytes. Assume it's already
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# in the given encoding, which for ISO-8859-1 is almost always what
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# was intended.
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return n
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def ntou(n, encoding='ISO-8859-1'):
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"""Return the given native string as a unicode string with the given
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encoding.
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"""
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assert_native(n)
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# In Python 2, the native string type is bytes.
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# First, check for the special encoding 'escape'. The test suite uses
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# this to signal that it wants to pass a string with embedded \uXXXX
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# escapes, but without having to prefix it with u'' for Python 2,
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# but no prefix for Python 3.
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if encoding == 'escape':
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return unicode(
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re.sub(r'\\u([0-9a-zA-Z]{4})',
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lambda m: unichr(int(m.group(1), 16)),
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n.decode('ISO-8859-1')))
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# Assume it's already in the given encoding, which for ISO-8859-1
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# is almost always what was intended.
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return n.decode(encoding)
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def tonative(n, encoding='ISO-8859-1'):
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"""Return the given string as a native string in the given encoding."""
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# In Python 2, the native string type is bytes.
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if isinstance(n, unicode):
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return n.encode(encoding)
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return n
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try:
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# type("")
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from cStringIO import StringIO
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except ImportError:
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# type("")
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from StringIO import StringIO
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# bytes:
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BytesIO = StringIO
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def assert_native(n):
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if not isinstance(n, nativestr):
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raise TypeError("n must be a native str (got %s)" % type(n).__name__)
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try:
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set = set
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except NameError:
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from sets import Set as set
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try:
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# Python 3.1+
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from base64 import decodebytes as _base64_decodebytes
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except ImportError:
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# Python 3.0-
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# since CherryPy claims compability with Python 2.3, we must use
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# the legacy API of base64
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from base64 import decodestring as _base64_decodebytes
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def base64_decode(n, encoding='ISO-8859-1'):
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"""Return the native string base64-decoded (as a native string)."""
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if isinstance(n, unicodestr):
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b = n.encode(encoding)
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else:
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b = n
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b = _base64_decodebytes(b)
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if nativestr is unicodestr:
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return b.decode(encoding)
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else:
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return b
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try:
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# Python 2.5+
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from hashlib import md5
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except ImportError:
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from md5 import new as md5
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try:
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# Python 2.5+
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from hashlib import sha1 as sha
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except ImportError:
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from sha import new as sha
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try:
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sorted = sorted
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except NameError:
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def sorted(i):
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i = i[:]
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i.sort()
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return i
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try:
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reversed = reversed
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except NameError:
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def reversed(x):
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i = len(x)
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while i > 0:
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i -= 1
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yield x[i]
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try:
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# Python 3
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from urllib.parse import urljoin, urlencode
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from urllib.parse import quote, quote_plus
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from urllib.request import unquote, urlopen
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from urllib.request import parse_http_list, parse_keqv_list
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except ImportError:
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# Python 2
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from urlparse import urljoin
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from urllib import urlencode, urlopen
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from urllib import quote, quote_plus
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from urllib import unquote
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from urllib2 import parse_http_list, parse_keqv_list
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try:
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from threading import local as threadlocal
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except ImportError:
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from cherrypy._cpthreadinglocal import local as threadlocal
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try:
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dict.iteritems
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# Python 2
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iteritems = lambda d: d.iteritems()
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copyitems = lambda d: d.items()
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except AttributeError:
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# Python 3
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iteritems = lambda d: d.items()
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copyitems = lambda d: list(d.items())
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try:
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dict.iterkeys
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# Python 2
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iterkeys = lambda d: d.iterkeys()
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copykeys = lambda d: d.keys()
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except AttributeError:
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# Python 3
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iterkeys = lambda d: d.keys()
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copykeys = lambda d: list(d.keys())
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try:
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dict.itervalues
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# Python 2
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itervalues = lambda d: d.itervalues()
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copyvalues = lambda d: d.values()
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except AttributeError:
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# Python 3
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itervalues = lambda d: d.values()
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copyvalues = lambda d: list(d.values())
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try:
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# Python 3
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import builtins
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except ImportError:
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# Python 2
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import __builtin__ as builtins
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try:
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# Python 2. We try Python 2 first clients on Python 2
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# don't try to import the 'http' module from cherrypy.lib
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from Cookie import SimpleCookie, CookieError
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from httplib import BadStatusLine, HTTPConnection, IncompleteRead
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from httplib import NotConnected
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from BaseHTTPServer import BaseHTTPRequestHandler
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except ImportError:
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# Python 3
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from http.cookies import SimpleCookie, CookieError
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from http.client import BadStatusLine, HTTPConnection, IncompleteRead
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from http.client import NotConnected
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from http.server import BaseHTTPRequestHandler
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# Some platforms don't expose HTTPSConnection, so handle it separately
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if py3k:
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try:
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from http.client import HTTPSConnection
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except ImportError:
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# Some platforms which don't have SSL don't expose HTTPSConnection
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HTTPSConnection = None
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else:
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try:
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from httplib import HTTPSConnection
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except ImportError:
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HTTPSConnection = None
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try:
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# Python 2
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xrange = xrange
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except NameError:
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# Python 3
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xrange = range
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import threading
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if hasattr(threading.Thread, "daemon"):
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# Python 2.6+
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def get_daemon(t):
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return t.daemon
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def set_daemon(t, val):
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t.daemon = val
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else:
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def get_daemon(t):
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return t.isDaemon()
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def set_daemon(t, val):
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t.setDaemon(val)
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try:
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from email.utils import formatdate
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def HTTPDate(timeval=None):
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return formatdate(timeval, usegmt=True)
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except ImportError:
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from rfc822 import formatdate as HTTPDate
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try:
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# Python 3
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from urllib.parse import unquote as parse_unquote
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def unquote_qs(atom, encoding, errors='strict'):
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return parse_unquote(
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atom.replace('+', ' '),
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encoding=encoding,
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errors=errors)
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except ImportError:
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# Python 2
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from urllib import unquote as parse_unquote
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def unquote_qs(atom, encoding, errors='strict'):
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return parse_unquote(atom.replace('+', ' ')).decode(encoding, errors)
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try:
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# Prefer simplejson, which is usually more advanced than the builtin
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# module.
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import simplejson as json
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json_decode = json.JSONDecoder().decode
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_json_encode = json.JSONEncoder().iterencode
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except ImportError:
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if sys.version_info >= (2, 6):
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# Python >=2.6 : json is part of the standard library
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import json
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json_decode = json.JSONDecoder().decode
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_json_encode = json.JSONEncoder().iterencode
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else:
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json = None
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def json_decode(s):
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raise ValueError('No JSON library is available')
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def _json_encode(s):
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raise ValueError('No JSON library is available')
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finally:
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if json and py3k:
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# The two Python 3 implementations (simplejson/json)
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# outputs str. We need bytes.
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def json_encode(value):
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for chunk in _json_encode(value):
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yield chunk.encode('utf8')
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else:
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json_encode = _json_encode
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try:
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import cPickle as pickle
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except ImportError:
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# In Python 2, pickle is a Python version.
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# In Python 3, pickle is the sped-up C version.
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import pickle
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try:
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os.urandom(20)
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import binascii
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def random20():
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return binascii.hexlify(os.urandom(20)).decode('ascii')
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except (AttributeError, NotImplementedError):
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import random
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# os.urandom not available until Python 2.4. Fall back to random.random.
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def random20():
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return sha('%s' % random.random()).hexdigest()
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try:
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from _thread import get_ident as get_thread_ident
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except ImportError:
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from thread import get_ident as get_thread_ident
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try:
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# Python 3
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next = next
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except NameError:
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# Python 2
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def next(i):
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return i.next()
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if sys.version_info >= (3, 3):
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Timer = threading.Timer
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Event = threading.Event
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else:
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# Python 3.2 and earlier
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Timer = threading._Timer
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Event = threading._Event
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# Prior to Python 2.6, the Thread class did not have a .daemon property.
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# This mix-in adds that property.
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class SetDaemonProperty:
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def __get_daemon(self):
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return self.isDaemon()
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def __set_daemon(self, daemon):
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self.setDaemon(daemon)
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if sys.version_info < (2, 6):
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daemon = property(__get_daemon, __set_daemon)
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