Order

dataset = order.Dataset("ttbar", 1, processes=[process])

or shorter:
dataset = prder.Dataset("ttbar", 1, processes=[
dict(name="ttbar", id=1, xsecs={13: 831.76})
])

- Add lazy_factories to indices. (ffb6bca, 58349e2, dd5f068)

- Update action versions. (da3ff54)
- Fix pretty_print. (190dcb8)
- Adjust recursion limit for deep copy. (94ff183)

Fixes

- Fix shift direction names, adapt to upstream scinum changes (29540a3).

- Add 'gen_order' attribute to Dataset. (9d82d6c)

- Allow arbitrary xsec keys in process. (c70e877)
- Don't overwrite by default in UniqueObjectIndex.extend. (b4d8d75)
- Add tree search algo aliases for walking. (7870233)
- Fix pretty printing of processes. (30c5fcf)
- Improve doc strings. (aaf020f)