apply black and isort (#4287)

* apply black and isort

* move some type ignores

stdlib/2and3/turtle.pyi

@@ -1,5 +1,6 @@
-from typing import Tuple, overload, Optional, Union, Dict, Any, Sequence, TypeVar, List, Callable, Text
 import sys
+from typing import Any, Callable, Dict, List, Optional, Sequence, Text, Tuple, TypeVar, Union, overload
+
 if sys.version_info >= (3,):
     from tkinter import Canvas, PhotoImage
 else:
@@ -34,7 +35,14 @@ class TurtleScreenBase(object):
     if sys.version_info >= (3,):
         def mainloop(self) -> None: ...
         def textinput(self, title: str, prompt: str) -> Optional[str]: ...
-        def numinput(self, title: str, prompt: str, default: Optional[float] = ..., minval: Optional[float] = ..., maxval: Optional[float] = ...) -> Optional[float]: ...
+        def numinput(
+            self,
+            title: str,
+            prompt: str,
+            default: Optional[float] = ...,
+            minval: Optional[float] = ...,
+            maxval: Optional[float] = ...,
+        ) -> Optional[float]: ...
 
 class Terminator(Exception): ...
 class TurtleGraphicsError(Exception): ...
@@ -142,7 +150,6 @@ class TNavigator(object):
     setposition = goto
     seth = setheading
 
-
 class TPen(object):
     def __init__(self, resizemode: str = ...) -> None: ...
     @overload
@@ -187,10 +194,21 @@ class TPen(object):
     @overload
     def pen(self) -> _PenState: ...  # type: ignore
     @overload
-    def pen(self, pen: Optional[_PenState] = ..., *,
-            shown: bool = ..., pendown: bool = ..., pencolor: _Color = ..., fillcolor: _Color = ...,
-            pensize: int = ..., speed: int = ..., resizemode: str = ..., stretchfactor: Tuple[float, float] = ...,
-            outline: int = ..., tilt: float = ...) -> None: ...
+    def pen(
+        self,
+        pen: Optional[_PenState] = ...,
+        *,
+        shown: bool = ...,
+        pendown: bool = ...,
+        pencolor: _Color = ...,
+        fillcolor: _Color = ...,
+        pensize: int = ...,
+        speed: int = ...,
+        resizemode: str = ...,
+        stretchfactor: Tuple[float, float] = ...,
+        outline: int = ...,
+        tilt: float = ...,
+    ) -> None: ...
     width = pensize
     up = penup
     pu = penup
@@ -199,10 +217,12 @@ class TPen(object):
     st = showturtle
     ht = hideturtle
 
-_T = TypeVar('_T')
+_T = TypeVar("_T")
 
 class RawTurtle(TPen, TNavigator):
-    def __init__(self, canvas: Union[Canvas, TurtleScreen, None] = ..., shape: str = ..., undobuffersize: int = ..., visible: bool = ...) -> None: ...
+    def __init__(
+        self, canvas: Union[Canvas, TurtleScreen, None] = ..., shape: str = ..., undobuffersize: int = ..., visible: bool = ...
+    ) -> None: ...
     def reset(self) -> None: ...
     def setundobuffer(self, size: Optional[int]) -> None: ...
     def undobufferentries(self) -> int: ...
@@ -216,7 +236,9 @@ class RawTurtle(TPen, TNavigator):
     @overload
     def shapesize(self) -> Tuple[float, float, float]: ...  # type: ignore
     @overload
-    def shapesize(self, stretch_wid: Optional[float] = ..., stretch_len: Optional[float] = ..., outline: Optional[float] = ...) -> None: ...
+    def shapesize(
+        self, stretch_wid: Optional[float] = ..., stretch_len: Optional[float] = ..., outline: Optional[float] = ...
+    ) -> None: ...
     if sys.version_info >= (3,):
         @overload
         def shearfactor(self, shear: None = ...) -> float: ...
@@ -226,7 +248,9 @@ class RawTurtle(TPen, TNavigator):
         @overload
         def shapetransform(self) -> Tuple[float, float, float, float]: ...  # type: ignore
         @overload
-        def shapetransform(self, t11: Optional[float] = ..., t12: Optional[float] = ..., t21: Optional[float] = ..., t22: Optional[float] = ...) -> None: ...
+        def shapetransform(
+            self, t11: Optional[float] = ..., t12: Optional[float] = ..., t21: Optional[float] = ..., t22: Optional[float] = ...
+        ) -> None: ...
         def get_shapepoly(self) -> Optional[_PolygonCoords]: ...
     def settiltangle(self, angle: float) -> None: ...
     @overload
@@ -265,7 +289,7 @@ class _Screen(TurtleScreen):
         width: Union[int, float] = ...,
         height: Union[int, float] = ...,
         startx: Optional[int] = ...,
-        starty: Optional[int] = ...
+        starty: Optional[int] = ...,
     ) -> None: ...
     def title(self, titlestring: str) -> None: ...
     def bye(self) -> None: ...
@@ -295,9 +319,12 @@ def write_docstringdict(filename: str = ...) -> None: ...
 # Note: mainloop() was always present in the global scope, but was added to
 # TurtleScreenBase in Python 3.0
 def mainloop() -> None: ...
+
 if sys.version_info >= (3,):
     def textinput(title: str, prompt: str) -> Optional[str]: ...
-    def numinput(title: str, prompt: str, default: Optional[float] = ..., minval: Optional[float] = ..., maxval: Optional[float] = ...) -> Optional[float]: ...
+    def numinput(
+        title: str, prompt: str, default: Optional[float] = ..., minval: Optional[float] = ..., maxval: Optional[float] = ...
+    ) -> Optional[float]: ...
 
 # Functions copied from TurtleScreen:
 
@@ -345,6 +372,7 @@ def bgpic(picname: str) -> None: ...
 def screensize(canvwidth: None = ..., canvheight: None = ..., bg: None = ...) -> Tuple[int, int]: ...
 @overload
 def screensize(canvwidth: int, canvheight: int, bg: Optional[_Color] = ...) -> None: ...
+
 onscreenclick = onclick
 resetscreen = reset
 clearscreen = clear
@@ -382,6 +410,7 @@ def towards(x: float, y: float) -> float: ...
 def heading() -> float: ...
 def setheading(to_angle: float) -> None: ...
 def circle(radius: float, extent: Optional[float] = ..., steps: Optional[int] = ...) -> None: ...
+
 fd = forward
 bk = back
 backward = back
@@ -393,7 +422,6 @@ setposition = goto
 seth = setheading
 
 # Functions copied from TPen:
-
 @overload
 def resizemode(rmode: None = ...) -> str: ...
 @overload
@@ -432,14 +460,26 @@ def color(color1: _Color, color2: _Color) -> None: ...
 def showturtle() -> None: ...
 def hideturtle() -> None: ...
 def isvisible() -> bool: ...
+
 # Note: signatures 1 and 2 overlap unsafely when no arguments are provided
 @overload
 def pen() -> _PenState: ...  # type: ignore
 @overload
-def pen(pen: Optional[_PenState] = ..., *,
-        shown: bool = ..., pendown: bool = ..., pencolor: _Color = ..., fillcolor: _Color = ...,
-        pensize: int = ..., speed: int = ..., resizemode: str = ..., stretchfactor: Tuple[float, float] = ...,
-        outline: int = ..., tilt: float = ...) -> None: ...
+def pen(
+    pen: Optional[_PenState] = ...,
+    *,
+    shown: bool = ...,
+    pendown: bool = ...,
+    pencolor: _Color = ...,
+    fillcolor: _Color = ...,
+    pensize: int = ...,
+    speed: int = ...,
+    resizemode: str = ...,
+    stretchfactor: Tuple[float, float] = ...,
+    outline: int = ...,
+    tilt: float = ...,
+) -> None: ...
+
 width = pensize
 up = penup
 pu = penup
@@ -456,11 +496,13 @@ def undobufferentries() -> int: ...
 def shape(name: None = ...) -> str: ...
 @overload
 def shape(name: str) -> None: ...
+
 # Unsafely overlaps when no arguments are provided
 @overload
 def shapesize() -> Tuple[float, float, float]: ...  # type: ignore
 @overload
 def shapesize(stretch_wid: Optional[float] = ..., stretch_len: Optional[float] = ..., outline: Optional[float] = ...) -> None: ...
+
 if sys.version_info >= (3,):
     @overload
     def shearfactor(shear: None = ...) -> float: ...
@@ -470,14 +512,18 @@ if sys.version_info >= (3,):
     @overload
     def shapetransform() -> Tuple[float, float, float, float]: ...  # type: ignore
     @overload
-    def shapetransform(t11: Optional[float] = ..., t12: Optional[float] = ..., t21: Optional[float] = ..., t22: Optional[float] = ...) -> None: ...
+    def shapetransform(
+        t11: Optional[float] = ..., t12: Optional[float] = ..., t21: Optional[float] = ..., t22: Optional[float] = ...
+    ) -> None: ...
     def get_shapepoly() -> Optional[_PolygonCoords]: ...
+
 def settiltangle(angle: float) -> None: ...
 @overload
 def tiltangle(angle: None = ...) -> float: ...
 @overload
 def tiltangle(angle: float) -> None: ...
 def tilt(angle: float) -> None: ...
+
 # Can return either 'int' or Tuple[int, ...] based on if the stamp is
 # a compound stamp or not. So, as per the "no Union return" policy,
 # we return Any.
@@ -494,10 +540,13 @@ def end_poly() -> None: ...
 def get_poly() -> Optional[_PolygonCoords]: ...
 def getscreen() -> TurtleScreen: ...
 def getturtle() -> Turtle: ...
+
 getpen = getturtle
+
 def onrelease(fun: Callable[[float, float], Any], btn: int = ..., add: Optional[Any] = ...) -> None: ...
 def ondrag(fun: Callable[[float, float], Any], btn: int = ..., add: Optional[Any] = ...) -> None: ...
 def undo() -> None: ...
+
 turtlesize = shapesize
 
 # Functions copied from RawTurtle with a few tweaks: