![Cantera](https://pydata.org/wp-content/uploads/2018/02/cantera-logo-300x300.png)
![Cantera](https://pydata.org/wp-content/uploads/2018/02/cantera-logo-300x300.png)
![QuantEcon](https://pydata.org/wp-content/uploads/2016/07/quantecon-logo-300.png)
QuantEcon
QuantEcon is dedicated to improving economic modeling by providing and enhancing open source computational tools for economists. QuantEcon offers code libraries useful for economics; workshops, seminars and training; and an online archive of lectures on economics and programming.
![SunPy](https://pydata.org/wp-content/uploads/2016/07/sunpy-logo-300.png)
SunPy
SunPy is a Python-based software library that provides tools for performing research using direct observations of the Sun and Heliosphere.
![Astropy](https://pydata.org/wp-content/uploads/2016/07/astropy-logo-300.png)
Astropy
The Astropy Project provides software tools and infrastructure to facilitate research by professional astronomers. In addition to maintaining a core Python package, the Astropy Project supports the development of high-grade affiliated packages by members of the astronomical community.
![Econ-ARK](https://pydata.org/wp-content/uploads/2017/11/Econ-ARK-new-logo.png)
Econ-ARK
The aim of the Econ-ARK project is to make it easier for social scientists to do ‘structural modeling’ of economic choice behavior by providing a well-documented, open source codebase containing the core techniques in a way that can be relatively easily adapted to address many different questions in both macro- and microeconomics.