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from __future__ import print_function
# partially from package six by Benjamin Peterson
import sys
import os
import types
try:
from ruamel.ordereddict import ordereddict
except:
try:
from collections import OrderedDict
except ImportError:
from orderddict import OrderedDict
# to get the right name import ... as ordereddict doesn't do that
class ordereddict(OrderedDict):
pass
PY2 = sys.version_info[0] == 2
PY3 = sys.version_info[0] == 3
if PY3:
def utf8(s):
return s
def to_str(s):
return s
def to_unicode(s):
return s
else:
def utf8(s):
return s.encode('utf-8')
def to_str(s):
return str(s)
def to_unicode(s):
return unicode(s)
if PY3:
string_types = str,
integer_types = int,
class_types = type,
text_type = str
binary_type = bytes
MAXSIZE = sys.maxsize
unichr = chr
import io
StringIO = io.StringIO
BytesIO = io.BytesIO
else:
string_types = basestring,
integer_types = (int, long)
class_types = (type, types.ClassType)
text_type = unicode
binary_type = str
unichr = unichr # to allow importing
import StringIO
StringIO = StringIO.StringIO
import cStringIO
BytesIO = cStringIO.StringIO
if PY3:
builtins_module = 'builtins'
else:
builtins_module = '__builtin__'
def with_metaclass(meta, *bases):
"""Create a base class with a metaclass."""
return meta("NewBase", bases, {})
DBG_TOKEN = 1
DBG_EVENT = 2
DBG_NODE = 4
_debug = None
# used from yaml util when testing
def dbg(val=None):
global _debug
if _debug is None:
# set to true or false
_debug = os.environ.get('YAMLDEBUG')
if _debug is None:
_debug = 0
else:
_debug = int(_debug)
if val is None:
return _debug
return _debug & val
def nprint(*args, **kw):
if dbg:
print(*args, **kw)
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