Add python examples

Python/1-closure.py

@@ -0,0 +1,15 @@
+import math
+
+
+def create_log(base):
+    def log(n):
+        return math.log(n, base)
+    return log
+
+
+if __name__ == '__main__':
+    lg = create_log(10)
+    ln = create_log(math.e)
+
+    print('lg(100) = ', lg(100))
+    print('ln(5) = ', ln(5))

Python/4-partial.py

@@ -0,0 +1,14 @@
+
+def partial(fn, x):
+    return lambda *args: fn(x, *args)
+
+
+def summary(a, b, c, d):
+    return a + b + c + d
+
+
+if __name__ == '__main__':
+    f1 = partial(summary, 1)
+    f2 = partial(f1, 2)
+    f3 = partial(f2, 3)
+    print(f3(4))

Python/5-partial-ext.py

@@ -0,0 +1,18 @@
+
+def partial(fn, *args):
+    return lambda *rest: fn(*(args + rest))
+
+
+def summary(a, b, c, d):
+    return a + b + c + d
+
+
+if __name__ == '__main__':
+    f1 = partial(summary, 1)
+    f2 = partial(f1, 2)
+    f3 = partial(f2, 3)
+    print(f3(4))
+
+    f11 = partial(summary, 1, 2)
+    f12 = partial(f11, 3)
+    print(f12(4))

Python/7-curry.py

@@ -0,0 +1,29 @@
+
+def curry(fn, *args, **kwargs):
+    def wrapper(*iargs, **ikwargs):
+        all_args = args + iargs
+        all_kwargs = {**kwargs, **ikwargs}
+        try:
+            return fn(*all_args, **all_kwargs)
+        except TypeError:
+            return curry(fn, *all_args, **all_kwargs)
+    return wrapper
+
+
+def summary(a, b, c, d):
+    return a + b + c + d
+
+
+if __name__ == '__main__':
+
+    f = curry(summary)
+
+    y1 = f(1, 2, 3, 4)
+    y2 = f(1, 2, 3)(4)
+    y3 = f(1, 2)(3)(4)
+    y4 = f(1)(2)(3)(4)
+    y5 = f(1)(2, 3, 4)
+    y6 = f(1)(2)(3, 4)
+    y7 = f(1, 2)(3, 4)
+
+    print(y1, y2, y3, y4, y5, y6, y7)