tasks a-s

Task/Partial-function-application/Python/partial-function-application-1.py

@@ -0,0 +1,18 @@
+from functools import partial
+
+def fs(f, s): return [f(value) for value in s]
+
+def f1(value): return value * 2
+
+def f2(value): return value ** 2
+
+fsf1 = partial(fs, f1)
+fsf2 = partial(fs, f2)
+
+s = [0, 1, 2, 3]
+assert fs(f1, s) == fsf1(s) # ==  [0, 2, 4, 6]
+assert fs(f2, s) == fsf2(s) # ==  [0, 1, 4, 9]
+
+s = [2, 4, 6, 8]
+assert fs(f1, s) == fsf1(s) # ==  [4, 8, 12, 16]
+assert fs(f2, s) == fsf2(s) # ==  [4, 16, 36, 64]

Task/Partial-function-application/Python/partial-function-application-2.py

@@ -0,0 +1,13 @@
+def partial(f, g):
+	def fg(*x): return f(g, *x)
+	return fg
+
+def fs(f, *x): return [ f(a) for a in x]
+def f1(a): return a * 2
+def f2(a): return a * a
+
+fsf1 = partial(fs, f1)
+fsf2 = partial(fs, f2)
+
+print fsf1(1, 2, 3, 4)
+print fsf2(1, 2, 3, 4)