track embedded python distribution

python/gevent/_compat.py

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+# -*- coding: utf-8 -*-
+"""
+internal gevent python 2/python 3 bridges. Not for external use.
+"""
+
+from __future__ import print_function, absolute_import, division
+
+
+import sys
+
+PY2 = sys.version_info[0] == 2
+PY3 = sys.version_info[0] >= 3
+PYPY = hasattr(sys, 'pypy_version_info')
+
+## Types
+
+if PY3:
+    string_types = (str,)
+    integer_types = (int,)
+    text_type = str
+
+else:
+    import __builtin__ # pylint:disable=import-error
+    string_types = __builtin__.basestring,
+    text_type = __builtin__.unicode
+    integer_types = (int, __builtin__.long)
+
+
+## Exceptions
+if PY3:
+    def reraise(t, value, tb=None): # pylint:disable=unused-argument
+        if value.__traceback__ is not tb and tb is not None:
+            raise value.with_traceback(tb)
+        raise value
+
+else:
+    from gevent._util_py2 import reraise # pylint:disable=import-error,no-name-in-module
+    reraise = reraise # export
+
+## Functions
+if PY3:
+    iteritems = dict.items
+    itervalues = dict.values
+    xrange = range
+else:
+    iteritems = dict.iteritems # python 3: pylint:disable=no-member
+    itervalues = dict.itervalues # python 3: pylint:disable=no-member
+    xrange = __builtin__.xrange