Log Message:
py-dot: updated to 1.4.1

1.4.1:
- Make graph, edge, node attributes order deterministic
- Fix string formatting after catching error

1.4.0:
- Installation of pydot in conda env on Windows directly supported
- Fixed comparing of SHA hash in regression tests (which fail now)

1.3.0:
- Dropped Python 2.6 support
- Move errno from os to builtin.