From 44eff38b3b93518664ae4520507bae3b49ab256b Mon Sep 17 00:00:00 2001
From: Alessio Bogon <youtux@gmail.com>
Date: Fri, 26 Feb 2016 17:17:57 +0100
Subject: [PATCH 1/2] fractions stub

---
 stdlib/2and3/fractions.pyi | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 stdlib/2and3/fractions.pyi

diff --git a/stdlib/2and3/fractions.pyi b/stdlib/2and3/fractions.pyi
new file mode 100644
index 000000000000..426510bb0553
--- /dev/null
+++ b/stdlib/2and3/fractions.pyi
@@ -0,0 +1,31 @@
+from typing import overload, Union
+
+import numbers
+import decimal
+
+AnyNumber = Union[numbers.Rational, float, decimal.Decimal, str]
+
+
+class Fraction(numbers.Rational):
+    @overload
+    def __init__(self, numerator: numbers.Rational = ...,
+                 denominator: numbers.Rational = ...) -> None: ...
+
+    @overload
+    def __init__(self, number: AnyNumber) -> None: ...
+
+    @classmethod
+    def from_float(flt: float) -> Fraction: ...
+
+    @classmethod
+    def from_decimal(dec: decimal.Decimal) -> Fraction: ...
+
+    def limit_denominator(max_denominator: int = ...) -> Fraction: ...
+
+    # TODO: floor, ceil and __round__ are Python 3 only
+    def floor(self) -> int: ...
+    def ceil(self) -> int: ...
+    def __round__(self, ndigits: int = ...) -> Fraction: ...
+
+
+def gcd(a: int, b: int) -> int: ...

From e69cfe149c57370e8c6dab4ae27e688e5b979cff Mon Sep 17 00:00:00 2001
From: Alessio Bogon <youtux@gmail.com>
Date: Sat, 27 Feb 2016 01:10:33 +0100
Subject: [PATCH 2/2] add many missing methods

---
 stdlib/2and3/fractions.pyi | 42 +++++++++++++++++++++++++++++++-------
 1 file changed, 35 insertions(+), 7 deletions(-)

diff --git a/stdlib/2and3/fractions.pyi b/stdlib/2and3/fractions.pyi
index 426510bb0553..29492b3c3d96 100644
--- a/stdlib/2and3/fractions.pyi
+++ b/stdlib/2and3/fractions.pyi
@@ -1,18 +1,22 @@
-from typing import overload, Union
+from typing import overload, Union, TypeVar
 
 import numbers
 import decimal
 
-AnyNumber = Union[numbers.Rational, float, decimal.Decimal, str]
+Number_ish = Union[int, float, str, numbers.Rational, decimal.Decimal]
 
+UpToComplexT = TypeVar('UpToComplexT', numbers.Rational,
+                       numbers.Real, numbers.Complex)
+UpToRealT = TypeVar('UpToRealT', numbers.Rational, numbers.Real)
 
 class Fraction(numbers.Rational):
     @overload
     def __init__(self, numerator: numbers.Rational = ...,
-                 denominator: numbers.Rational = ...) -> None: ...
+                 denominator: numbers.Rational = ...,
+                 _normalize: bool = ...) -> None: ...
 
     @overload
-    def __init__(self, number: AnyNumber) -> None: ...
+    def __init__(self, number: Number_ish) -> None: ...
 
     @classmethod
     def from_float(flt: float) -> Fraction: ...
@@ -22,9 +26,33 @@ class Fraction(numbers.Rational):
 
     def limit_denominator(max_denominator: int = ...) -> Fraction: ...
 
-    # TODO: floor, ceil and __round__ are Python 3 only
-    def floor(self) -> int: ...
-    def ceil(self) -> int: ...
+    def __add__(self, other: UpToComplexT) -> UpToComplexT: ...
+    def __radd__(self, other: UpToComplexT) -> UpToComplexT: ...
+    def __sub__(self, other: UpToComplexT) -> UpToComplexT: ...
+    def __rsub__(self, other: UpToComplexT) -> UpToComplexT: ...
+    def __mul__(self, other: UpToComplexT) -> UpToComplexT: ...
+    def __rmul__(self, other: UpToComplexT) -> UpToComplexT: ...
+    def __truediv__(self, other: UpToComplexT) -> UpToComplexT: ...
+    def __rtruediv__(self, other: UpToComplexT) -> UpToComplexT: ...
+    def __floordiv__(self, other: UpToComplexT) -> numbers.Integral: ...
+    def __rfloordiv__(self, other: UpToComplexT) -> numbers.Integral: ...
+
+    def __mod__(self, other: UpToRealT) -> UpToRealT: ...
+    def __rmod__(self, other: UpToRealT) -> UpToRealT: ...
+
+    @overload
+    def __pow__(self, other: numbers.Integral) -> Fraction: ...
+    @overload
+    def __pow__(self, other: numbers.Complex) -> numbers.Complex: ...
+
+    def __rpow__(self, other: numbers.Complex) -> numbers.Complex: ...
+    def __pos__(self) -> Fraction: ...
+    def __neg__(self) -> Fraction: ...
+    def __abs__(self) -> Fraction: ...
+
+    # TODO: __floor__, __ceil__ and __round__ are Python 3 only
+    def __floor__(self) -> int: ...
+    def __ceil__(self) -> int: ...
     def __round__(self, ndigits: int = ...) -> Fraction: ...