[issue21183] Doctest capture only AssertionError but not printed text

[Osvaldo Santana Neto]

New submission from Osvaldo Santana Neto:

The following doctest should pass, but it fails:

    >>> def spam(): print("eggs")
    ...
    >>> assert spam()
    eggs
    Traceback (most recent call last):
    AssertionError

But if we remove the print output from printed results the test pass:

    >>> def spam(): print("eggs")
    ...
    >>> assert spam()
    Traceback (most recent call last):
    AssertionError

I'm writing the 2nd edition of a book about Python (covering python3) and Django and I'm using doctest to run the interactive sessions that I use as examples in book.

----------
components: Library (Lib)
files: doctest_bug.py
messages: 215796
nosy: osantana
priority: normal
severity: normal
status: open
title: Doctest capture only AssertionError but not printed text
type: behavior
versions: Python 2.7, Python 3.4
Added file: http://bugs.python.org/file34771/doctest_bug.py

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<http://bugs.python.org/issue21183>
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