Fixed hashing of Pip types (Issue #46).

See https://stackoverflow.com/a/53519136/257020 for why

ptypes.py

@@ -72,7 +72,9 @@ def __bool__(self):
 
     def __eq__(self, rhs):
         return type(self) is type(rhs) and self._value == rhs._value
-
+
+    __hash__ = PipIterable.__hash__
+
     def __len__(self):
         return len(self._value)
 
@@ -221,7 +223,9 @@ def __bool__(self):
 
     def __eq__(self, rhs):
         return type(rhs) == type(self) and self._raw == rhs._raw
-
+
+    __hash__ = PipType.__hash__
+
     def __len__(self):
         return len(self._raw)
 
@@ -311,6 +315,8 @@ def __bool__(self):
     def __eq__(self, rhs):
         return type(rhs) == type(self) and self._value == rhs._value
 
+    __hash__ = PipIterable.__hash__
+
     def __len__(self):
         return len(self._value)
 
@@ -448,6 +454,8 @@ def __eq__(self, rhs):
                 and self._lower == rhs._lower
                 and self._upper == rhs._upper)
 
+    __hash__ = PipIterable.__hash__
+
     def __len__(self):
         lower = self._lower or 0
         if self._upper is not None:
@@ -624,6 +632,8 @@ def __eq__(self, rhs):
                 and self._statements == rhs._statements
                 and self._returnExpr == rhs._returnExpr)
 
+    __hash__ = PipType.__hash__
+
     def toNumber(self):
         return 0
 
@@ -659,6 +669,8 @@ def __iter__(self):
     def __eq__(self, rhs):
         return self is rhs
 
+    __hash__ = PipType.__hash__
+
     def toNumber(self):
         return 0
 

version.py

@@ -1,3 +1,3 @@
 
 VERSION = "1.0.1"
-COMMIT_DATE = "2021-11-16"
+COMMIT_DATE = "2021-11-18"