Open Source Python Drawing Software

Dia Diagram Editor is free Open Source drawing software for Windows, Mac OS X and Linux. Dia supports more than 30 different diagram types like flowcharts, network diagrams, database models. More than a thousand readymade objects help to draw professional diagrams. Dia can read and write a number of different raster and vector image formats. Software developers and database specialists can use Dia as a CASE tool to generate code skeletons from their drawings. Dia can be scripted and extended using Python.

Skencil is a vector drawing program. It's written almost completely in python for flexibilty with some modules written in C for speed.

dedalo is a 2d cad drawing software written in python3. It is licensed under the GPLv3. Dedalo features: layers, snaps (endpoint, intersection, midpoint), line, polyline, rectangle, delete, polygon, rectangle, arc, circle, points, text, spline, freehand drawing. Move, scale, rotate, offset, cut, extend, hatch, dimension, copy. English, italian languages SVG read-write. Not all features all fully supported. For more information a user manual is provided(pdf format, italian).

Color picker app with support of multi type format: HTML, RGB, HSV, HSL, and CMYK format. Alpha channel support with preview and bidirectional copy/paste and drag&drop mode. Also has auto-copy feature for intesity and percent color level with/without type declaration. Multi custom profile management.

If you want to do a drawing, you want a drawing program. If you want to write text, you want a text editor. If you want to show them, you want Liveshow Realtime Media Presenter.

A drawing program for chemical structure formulas, in the vein of chemtool, BKChem, EasyChem, or Xdrawchem.