What is the Relationship between ezdxf, dxfwrite and dxfgrabber?

In 2010 I started my first Python package for creating DXF documents called dxfwrite, this package can’t read DXF files and writes only the DXF R12 (AC1009) version. While dxfwrite works fine, I wanted a more versatile package, that can read and write DXF files and maybe also supports newer DXF formats than DXF R12.

This was the start of the ezdxf package in 2011, but the progress was so slow, that I created a spin off in 2012 called dxfgrabber, which implements only the reading part of ezdxf, which I needed for my work and I wasn’t sure if ezdxf will ever be usable. Luckily in 2014 the first usable version of ezdxf could be released. The ezdxf package has all the features of dxfwrite and dxfgrabber and much more, but with a different API. So ezdxf is not a drop-in replacement for dxfgrabber or dxfwrite.

Since ezdxf can do all the things that dxfwrite and dxfgrabber can do, I focused on the development of ezdxf, dxfwrite and dxfgrabber are in maintenance mode only and will not get any new features, just bugfixes.

There are no advantages of dxfwrite over ezdxf, dxfwrite has the smaller memory footprint, but the r12writer add-on does the same job as dxfwrite without any in memory structures by writing direct to a stream or file and there is also no advantage of dxfgrabber over ezdxf for normal DXF files the smaller memory footprint of dxfgrabber is not noticeable and for really big files the iterdxf add-on does a better job.

Imported ezdxf package has no content. (readfile, new)

  1. AttributeError: partially initialized module ‘ezdxf’ has no attribute ‘readfile’ (most likely due to a circular import)

    Did you name your file/script “ezdxf.py”? This causes problems with circular imports. Renaming your file/script should solve this issue.

  2. AttributeError: module ‘ezdxf’ has no attribute ‘readfile’

    This could be a hidden permission error, for more information about this issue read Petr Zemeks article: https://blog.petrzemek.net/2020/11/17/when-you-import-a-python-package-and-it-is-empty/