I am pleased to announce the release of xlwings v0.7.1: Amongst other things, this release adds support for VBA macros and optional/default UDF arguments. Check the Release Notes for full details: http://docs.xlwings.org/en/stable/whatsnew.html About xlwings: xlwings is a BSD-licensed python library that makes it easy to call python from Excel and vice versa: * Scripting: Automate/interact with Excel from Python using a syntax that is close to VBA. * Macros: Replace your messy VBA macros with clean and powerful Python code. * UDFs: Write User Defined Functions (UDFs) in Python (Windows only). Numpy arrays and Pandas Series/DataFrames are fully supported. xlwings-powered workbooks are easy to distribute and work on Windows and Mac. http://xlwings.org