/usr/share/lintian/overrides/ipython-qtconsole is in ipython-qtconsole 2.3.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | # "ipython" is provided by the binary package ipython on which this package depends
ipython-qtconsole binary: desktop-command-not-in-package usr/share/applications/ipython-qtconsole.desktop ipython
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