ch05

ch05/even.squares.py

@@ -0,0 +1,10 @@
+# even.squares.py
+# using map and filter
+sq1 = list(
+    map(lambda n: n ** 2, filter(lambda n: not n % 2, range(10)))
+)
+
+# equivalent, but using list comprehensions
+sq2 = [n ** 2 for n in range(10) if not n % 2]
+
+print(sq1, sq1 == sq2)  # prints: [0, 4, 16, 36, 64] True