PyAMS (Python for Analog and Mixed Signals) CAD approach
This software is a tool for designing electronic circuits using LaTeX.
Solves symbolic electrical AC circuit equations
A tool for low-power CMOS voltage reference designs
Smart GUI/Commandline tools to create IP-XACT( 2009/2014) files
VHDL Verification and Simulation Tool
A logic gate simulator for linux developed with Gtk and python.
Import your PCB boards to FreeCAD
Text based timing diagram generator
Python Gerber to G-code converter
Convert DXF drawings of circuit boards to gEDA-PCB files.
Open Network Object System
GDS visualization and parallelized capacitance extraction
RS485 library for C# and Python