Data commit

Task/First-class-environments/Python/first-class-environments.py

@@ -0,0 +1,18 @@
+environments = [{'cnt':0, 'seq':i+1} for i in range(12)]
+
+code = '''
+print('% 4d' % seq, end='')
+if seq != 1:
+    cnt += 1
+    seq = 3 * seq + 1 if seq & 1 else seq // 2
+'''
+
+while any(env['seq'] > 1 for env in environments):
+    for env in environments:
+        exec(code, globals(), env)
+    print()
+
+print('Counts')
+for env in environments:
+    print('% 4d' % env['cnt'], end='')
+print()