more fixes to threading racing

1 files changed, 2 insertions, 10 deletions

diff --git a/pyasn1/type/base.py b/pyasn1/type/base.py
index 99e865f..b901123 100644
--- a/pyasn1/type/base.py
+++ b/pyasn1/type/base.py
@@ -85,12 +85,7 @@ class Asn1ItemBase(Asn1Item):
     def tagMap(self):
         """Return a :class:`~pyasn1.type.tagmap.TagMap` object mapping ASN.1 tags to ASN.1 objects within callee object.
         """
-        try:
-            return self._tagMap
-
-        except AttributeError:
-            self._tagMap = tagmap.TagMap({self.tagSet: self})
-            return self._tagMap
+        return tagmap.TagMap({self.tagSet: self})
 
     def isSameTypeWith(self, other, matchTags=True, matchConstraints=True):
         """Examine |ASN.1| type for equality with other ASN.1 type.
@@ -235,7 +230,6 @@ class AbstractSimpleAsn1Item(Asn1ItemBase):
                 exType, exValue, exTb = sys.exc_info()
                 raise exType('%s at %s' % (exValue, self.__class__.__name__))
 
-        self.__hashedValue = None
         self._value = value
         self._len = None
 
@@ -278,9 +272,7 @@ class AbstractSimpleAsn1Item(Asn1ItemBase):
             return self._value and True or False
 
     def __hash__(self):
-        if self.__hashedValue is None:
-            self.__hashedValue = hash(self._value)
-        return self.__hashedValue
+        return hash(self._value)
 
     @property
     def isValue(self):