Patch # 1145 by Thomas Lee:
str.join(...) now applies str() to the sequence elements if they're
not strings alraedy, except for bytes, which still raise TypeError
(for the same reasons why ""==b"" raises it).
diff --git a/Lib/test/string_tests.py b/Lib/test/string_tests.py
index 9e178ca..cb8900d 100644
--- a/Lib/test/string_tests.py
+++ b/Lib/test/string_tests.py
@@ -13,6 +13,7 @@
class BadSeq1(Sequence):
def __init__(self): self.seq = [7, 'hello', 123]
+ def __str__(self): return '{0} {1} {2}'.format(*self.seq)
class BadSeq2(Sequence):
def __init__(self): self.seq = ['a', 'b', 'c']
@@ -987,19 +988,19 @@
self.checkequal('abc', 'a', 'join', ('abc',))
self.checkequal('z', 'a', 'join', UserList(['z']))
self.checkequal('a.b.c', '.', 'join', ['a', 'b', 'c'])
- self.checkraises(TypeError, '.', 'join', ['a', 'b', 3])
+ self.checkequal('a.b.3', '.', 'join', ['a', 'b', 3])
for i in [5, 25, 125]:
self.checkequal(((('a' * i) + '-') * i)[:-1], '-', 'join',
['a' * i] * i)
self.checkequal(((('a' * i) + '-') * i)[:-1], '-', 'join',
('a' * i,) * i)
- self.checkraises(TypeError, ' ', 'join', BadSeq1())
+ self.checkequal(str(BadSeq1()), ' ', 'join', BadSeq1())
self.checkequal('a b c', ' ', 'join', BadSeq2())
self.checkraises(TypeError, ' ', 'join')
self.checkraises(TypeError, ' ', 'join', 7)
- self.checkraises(TypeError, ' ', 'join', Sequence([7, 'hello', 123]))
+ self.checkraises(TypeError, ' ', 'join', [1, 2, bytes()])
try:
def f():
yield 4 + ""