Rodeo is described as 'Python IDE for doing data science and analysis natively on your desktop' and is an app in the Development category. There are more than 25 alternatives to Rodeo for a variety of platforms, including Windows, Linux, Mac, Online / Web-based and Android. The best alternative is GNU Octave, which is both free and Open Source. Other great apps like Rodeo are Jupyter (Free, Open Source), RStudio (Free, Open Source), Mathematica (Paid) and Scilab (Free, Open Source).
Octave is a computer program for performing numerical computations which is mostly compatible with MATLAB. It is part of the GNU Project. It is free software under the terms of the GNU General Public License.
SageMath is a free open-source mathematics software system licensed under the GPL. It combines the power of many existing open-source packages into a common Python-based interface. Mission: Creating a viable free open source alternative to Magma, Maple, Mathematica and Matlab.
IPython is an interactive shell for the Python programming language that offers enhanced introspection, additional shell syntax, syntax highlighting, tab completion and rich history. It is a component of the SciPy package.
Spyder (previously known as Pydee) is a free open-source Python development environment providing MATLAB-like features in a simple and light-weighted software, available for Windows XP/Vista/7, GNU/Linux and Mac OS X.