Add support for dividing money by money

It was an oversight to not include it initially

money/money.py

@@ -1,5 +1,6 @@
 """Class representing a monetary amount"""
 
+from typing import Union
 from decimal import Decimal, ROUND_HALF_UP
 from babel.numbers import format_currency
 from money.currency import Currency
@@ -108,32 +109,44 @@ def __rmul__(self, other: float) -> 'Money':
     def __div__(self, other: float) -> 'Money':
         return self.__truediv__(other)
 
-    def __truediv__(self, other: float) -> 'Money':
+    def __truediv__(self, other: Union['Money', float]) -> Union['Money', float]:
         if isinstance(other, Money):
-            raise InvalidOperandError
-        elif other == 0:
-            raise ZeroDivisionError
-
-        amount = self._round(self._amount / Decimal(other), self._currency)
-        return self.__class__(str(amount), self._currency)
-
-    def __floordiv__(self, other: float) -> 'Money':
+            self._assert_same_currency(other)
+            if other.amount == Decimal('0'):
+                raise ZeroDivisionError
+            return float(self.amount / other.amount)
+
+        else:
+            if other == 0:
+                raise ZeroDivisionError
+            amount = self._round(self._amount / Decimal(other), self._currency)
+            return self.__class__(str(amount), self._currency)
+
+    def __floordiv__(self, other: Union['Money', float]) -> Union['Money', float]:
         if isinstance(other, Money):
-            raise InvalidOperandError
-        elif other == 0:
-            raise ZeroDivisionError
-
-        amount = self._round(self._amount // Decimal(other), self._currency)
-        return self.__class__(str(amount), self._currency)
-
-    def __mod__(self, other: int) -> 'Money':
+            self._assert_same_currency(other)
+            if other.amount == Decimal('0'):
+                raise ZeroDivisionError
+            return float(self.amount // other.amount)
+
+        else:
+            if other == 0:
+                raise ZeroDivisionError
+            amount = self._round(self._amount // Decimal(other), self._currency)
+            return self.__class__(str(amount), self._currency)
+
+    def __mod__(self, other: Union['Money', float]) -> Union['Money', float]:
         if isinstance(other, Money):
-            raise InvalidOperandError
-        elif other == 0:
-            raise ZeroDivisionError
-
-        amount = self._round(self._amount % Decimal(other), self._currency)
-        return self.__class__(str(amount), self._currency)
+            self._assert_same_currency(other)
+            if other.amount == Decimal('0'):
+                raise ZeroDivisionError
+            return float(self.amount % other.amount)
+
+        else:
+            if other == 0:
+                raise ZeroDivisionError
+            amount = self._round(self._amount % Decimal(other), self._currency)
+            return self.__class__(str(amount), self._currency)
 
     def __neg__(self) -> 'Money':
         return self.__class__(str(-self._amount), self._currency)

money/tests/test_money.py

@@ -160,9 +160,7 @@ def test_divide(self):
         assert Money('3.3') / 3 == Money('1.1')
         assert Money('9.95') / 0.24 == Money('41.46')
         assert Money('3', Currency.JPY) / 1.6 == Money('2', Currency.JPY)
-
-        with pytest.raises(InvalidOperandError):
-            Money('5.5') / Money('1.2')
+        assert Money('3.6') / Money('2.5') == 1.44
 
         with pytest.raises(TypeError):
             3 / Money('5.5')
@@ -173,33 +171,50 @@ def test_divide(self):
         with pytest.raises(ZeroDivisionError):
             Money('3.3') / 0.0
 
+        with pytest.raises(ZeroDivisionError):
+            Money('3.3') / Money('0')
+
+        with pytest.raises(CurrencyMismatchError):
+            Money('3.5', Currency.EUR) / Money('1.8', Currency.GBP)
+
     def test_floor_divide(self):
         assert Money('3.3') // 3 == Money('1')
         assert Money('9.95') // 0.24 == Money('41')
         assert Money('3', Currency.JPY) // 1.6 == Money('1', Currency.JPY)
-
-        with pytest.raises(InvalidOperandError):
-            Money('5.5') // Money('1.2')
+        assert Money('3.6') // Money('2.5') == 1
 
         with pytest.raises(TypeError):
             3 // Money('5.5')
 
+        with pytest.raises(ZeroDivisionError):
+            Money('3') // 0
+
         with pytest.raises(ZeroDivisionError):
             Money('3.3') // 0.0
 
+        with pytest.raises(ZeroDivisionError):
+            Money('3.3') // Money('0')
+
+        with pytest.raises(CurrencyMismatchError):
+            Money('3.5', Currency.EUR) // Money('1.8', Currency.GBP)
+
     def test_mod(self):
         assert Money('3.3') % 3 == Money('0.3')
         assert Money('3', Currency.JPY) % 2 == Money('1', Currency.JPY)
-
-        with pytest.raises(InvalidOperandError):
-            Money('5.5') % Money('1.2')
+        assert Money('3') % Money('2') == 1
 
         with pytest.raises(TypeError):
             3 % Money('5.5')
 
         with pytest.raises(ZeroDivisionError):
             Money('3.3') % 0
 
+        with pytest.raises(ZeroDivisionError):
+            Money('3.3') % 0.0
+
+        with pytest.raises(CurrencyMismatchError):
+            Money('3.5', Currency.EUR) % Money('1.8', Currency.GBP)
+
     def test_neg(self):
         assert -Money('5.23') == Money('-5.23')
         assert -Money('-1.35') == Money('1.35')

setup.py

@@ -12,7 +12,7 @@
     packages=[
         'money'
     ],
-    version='0.1.1',
+    version='0.2.0',
     description='Money module for python',
     long_description=long_description,
     url='https://github.com/vimeo/py-money',