The official ArcPy Cheatsheet is here!
ArcPy is a Python site package that provides a useful and productive way to perform geographic data analysis, data conversion, data management, and map automation with Python. Learn more at What is ArcPy?.
The current ArcPy Cheatsheet is available for download at our GitHub repository: Esri/arcpy: Resources and ideas about arcpy and Python in ArcGIS.