initial creation

py3interm/EXAMPLES/sieve_generator.py

@@ -0,0 +1,16 @@
+#!/usr/bin/env python
+
+def next_prime(limit):
+    flags = set()  # <1>
+
+    for i in range(2, limit):
+        if i in flags:
+            continue
+        for j in range(2 * i, limit + 1, i):
+            flags.add(j)  # <2>
+        yield i  # <3>
+
+
+np = next_prime(200)  # <4>
+for prime in np:  # <5>
+    print(prime, end=' ')