http://code.activestate.com/recipes/tags/stdout/top/2012-03-14T15:12:39-07:00ActiveState Code Recipes2012-01-26T02:14:25-08:00Greg Haskinshttp://code.activestate.com/recipes/users/4176881/http://code.activestate.com/recipes/577564-context-manager-for-low-level-redirection-of-stdou/

<p style="color: grey"> Python recipe 577564 by <a href="/recipes/users/4176881/">Greg Haskins</a> (<a href="/recipes/tags/contextmanager/">contextmanager</a>, <a href="/recipes/tags/context_manager/">context_manager</a>, <a href="/recipes/tags/f2py/">f2py</a>, <a href="/recipes/tags/fortran/">fortran</a>, <a href="/recipes/tags/python/">python</a>, <a href="/recipes/tags/redirect/">redirect</a>, <a href="/recipes/tags/stdout/">stdout</a>). Revision 3. </p> <p>This context manager provides a convenient, Pythonic way to temporarily replace the file descriptors of <code>stdout</code> and <code>stderr</code>, redirecting to either <code>os.devnull</code> or files of your choosing. Swapping the C-level file descriptors is required when suppressing output from compiled extension modules, such as those built using F2PY. It functions equally well for pure-Python code. <em>UPDATE:</em> (see below).</p>

2012-03-14T15:12:39-07:00Daniel Cohnhttp://code.activestate.com/recipes/users/4172918/http://code.activestate.com/recipes/578073-rpdb-robotpythondebugger-a-smarter-way-to-debug-ro/

<p style="color: grey"> Python recipe 578073 by <a href="/recipes/users/4172918/">Daniel Cohn</a> (<a href="/recipes/tags/debugging/">debugging</a>, <a href="/recipes/tags/decorator/">decorator</a>, <a href="/recipes/tags/pdb/">pdb</a>, <a href="/recipes/tags/redirect/">redirect</a>, <a href="/recipes/tags/robot/">robot</a>, <a href="/recipes/tags/rpdb/">rpdb</a>, <a href="/recipes/tags/stdin/">stdin</a>, <a href="/recipes/tags/stdout/">stdout</a>). </p> <p>Robotframework (<a href="http://code.google.com/p/robotframework/" rel="nofollow">http://code.google.com/p/robotframework/</a>) is a tool used to run functional tests against a variety of targets. Tests are organized in the form of keyword tsv or html files, which map input parameters to keyword-argument methods in the test suite. Robot includes a fairly advanced logging mechanism, which is cool -- until you try to debug anything. Debugging is made difficult because robot steals stdin and stdout when it is run, which means bye-bye debugging in the terminal. rpdb solves this in a KISS simple way.</p>

2010-03-03T06:17:23-08:00pwallerhttp://code.activestate.com/recipes/users/4173218/http://code.activestate.com/recipes/577083-posix-context-manager-to-temporarily-silence-or-fi/

<p style="color: grey"> Python recipe 577083 by <a href="/recipes/users/4173218/">pwaller</a> (<a href="/recipes/tags/contextmanager/">contextmanager</a>, <a href="/recipes/tags/freopen/">freopen</a>, <a href="/recipes/tags/silence/">silence</a>, <a href="/recipes/tags/stdout/">stdout</a>, <a href="/recipes/tags/with/">with</a>). Revision 2. </p> <p>Fed up with libraries you don't have control over emitting text into your precious stdout?</p> <p>If they use stdout through python, then you can just change sys.stdout to be something else. If they are printing directly to stdout through a C module, or some other means, then you are stuck.</p> <p>.. at least until you discover the <code>with silence():</code> block!</p> <p>Caveats: Non-portable, tested only on 2.6 under Linux, uses threading.</p> <p>Example output:</p> <pre class="prettyprint"><code>$ python silence_file.py Before with block.. Sensible stuff! After the silence block </code></pre>