The recent 0.11 release of IPython includes a Qt-based console which offers an improved experience compared to running IPython in a terminal. In particular, the console feels like a terminal but offers multi-line editing, syntax highlighting, graphical tooltips, and inline plot figures.

But when I tried to run an existing script in the new IPython Qt Console, the usual overly verbose set of diagnostic messages did not appear! The symtoms were:

• Regular print statements in Python worked fine.
• printf statements in C-code wrapped with Boost.Python did not appear.

Read on to see a solution. Continue reading IPython Qt Console and printf →