mongoengine/mongoengine/python_support.py
2015-06-23 23:15:44 +02:00

38 lines
741 B
Python

"""Helper functions and types to aid with Python 2.5 - 3 support."""
import sys
import pymongo
if pymongo.version_tuple[0] < 3:
IS_PYMONGO_3 = False
else:
IS_PYMONGO_3 = True
PY3 = sys.version_info[0] == 3
if PY3:
import codecs
from io import BytesIO as StringIO
# return s converted to binary. b('test') should be equivalent to b'test'
def b(s):
return codecs.latin_1_encode(s)[0]
bin_type = bytes
txt_type = str
else:
try:
from cStringIO import StringIO
except ImportError:
from StringIO import StringIO
# Conversion to binary only necessary in Python 3
def b(s):
return s
bin_type = str
txt_type = unicode
str_types = (bin_type, txt_type)