mirror of https://github.com/ledisdb/ledisdb.git
80 lines
2.3 KiB
Python
80 lines
2.3 KiB
Python
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"""Internal module for Python 2 backwards compatibility."""
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import sys
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if sys.version_info[0] < 3:
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from urlparse import urlparse
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from itertools import imap, izip
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from string import letters as ascii_letters
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from Queue import Queue
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try:
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from cStringIO import StringIO as BytesIO
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except ImportError:
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from StringIO import StringIO as BytesIO
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iteritems = lambda x: x.iteritems()
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iterkeys = lambda x: x.iterkeys()
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itervalues = lambda x: x.itervalues()
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nativestr = lambda x: \
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x if isinstance(x, str) else x.encode('utf-8', 'replace')
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u = lambda x: x.decode()
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b = lambda x: x
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next = lambda x: x.next()
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byte_to_chr = lambda x: x
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unichr = unichr
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xrange = xrange
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basestring = basestring
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unicode = unicode
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bytes = str
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long = long
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else:
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from urllib.parse import urlparse
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from io import BytesIO
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from string import ascii_letters
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from queue import Queue
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iteritems = lambda x: iter(x.items())
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iterkeys = lambda x: iter(x.keys())
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itervalues = lambda x: iter(x.values())
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byte_to_chr = lambda x: chr(x)
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nativestr = lambda x: \
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x if isinstance(x, str) else x.decode('utf-8', 'replace')
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u = lambda x: x
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b = lambda x: x.encode('iso-8859-1') if not isinstance(x, bytes) else x
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next = next
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unichr = chr
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imap = map
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izip = zip
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xrange = range
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basestring = str
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unicode = str
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bytes = bytes
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long = int
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try: # Python 3
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from queue import LifoQueue, Empty, Full
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except ImportError:
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from Queue import Empty, Full
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try: # Python 2.6 - 2.7
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from Queue import LifoQueue
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except ImportError: # Python 2.5
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from Queue import Queue
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# From the Python 2.7 lib. Python 2.5 already extracted the core
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# methods to aid implementating different queue organisations.
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class LifoQueue(Queue):
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"Override queue methods to implement a last-in first-out queue."
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def _init(self, maxsize):
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self.maxsize = maxsize
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self.queue = []
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def _qsize(self, len=len):
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return len(self.queue)
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def _put(self, item):
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self.queue.append(item)
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def _get(self):
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return self.queue.pop()
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