I'm using the latest tqdm with python 3.5 on Mac OS X iTerm2.

I pasted the "redirecting writing" example and ran it verbatim, but it didn't have the correct behavior.

Expected: "Foo blabla" -> 33% -> "Foo blabla" -> "66%" -> "Foo blabla" -> 100%
Actual: "Foo blabla" -> "Foo blabla" -> "Foo blabla" -> 100%

The intermediate 33% and 66% aren't printed at all. The bar only shows once at the very end.

If I don't use the trick and write tqdm.write('Foo blabla') instead, it displays the correct behavior.

Thanks!