ch17: update from book draft

2020-02-18 23:45:05 -03:00
parent 70650841b3
commit aa868e8f75
35 changed files with 788 additions and 31 deletions
--- a/17-it-generator/aritprog_v0.py
+++ b/17-it-generator/aritprog_v0.py
@@ -17,7 +17,8 @@ class ArithmeticProgression:
        self.end = end  # None -> "infinite" series

    def __iter__(self):
-        result = type(self.begin + self.step)(self.begin)
+        result_type = type(self.begin + self.step)
+        result = result_type(self.begin)
        forever = self.end is None
        while forever or result < self.end:
            yield result