Fastai

New Features

- add `strcat` and `mapt` ([273](https://github.com/fastai/fastcore/issues/273))

New Features

- add `loads_multi` ([271](https://github.com/fastai/fastcore/issues/271))

Bugs Squashed

- ignored empty str `names` in `store_attr` ([267](https://github.com/fastai/fastcore/issues/267))
- `returns_none` not returning non-none type ([266](https://github.com/fastai/fastcore/issues/266))
- `Transform` return type ignored ([265](https://github.com/fastai/fastcore/issues/265))
- `test_eq` incorrect for pandas `DataFrame` ([188](https://github.com/fastai/fastcore/pull/188)), thanks to [kessido](https://github.com/kessido)

New Features
- add `EventTimer` ([263](https://github.com/fastai/fastcore/issues/263))
- Store kwargs in `store_attr ([262](https://github.com/fastai/fastcore/issues/262))
- add `truncstr` ([261](https://github.com/fastai/fastcore/issues/261))
- add `sparkline` ([260](https://github.com/fastai/fastcore/issues/260))
- add `autostart` for generators ([249](https://github.com/fastai/fastcore/issues/249))
- dynamic fastcore.script help width ([247](https://github.com/fastai/fastcore/issues/247))
- optional override to `risinstance` to support both types and str in the same function ([191](https://github.com/fastai/fastcore/pull/191)), thanks to [kessido](https://github.com/kessido)

Bugs Squashed

- delegates doesn't pull the `__init__` of a class ([217](https://github.com/fastai/fastcore/issues/217))
- `test_eq` incorrect for pandas `DataFrame` ([188](https://github.com/fastai/fastcore/pull/188)), thanks to [kessido](https://github.com/kessido)

New Features

- enum support for `call_parse` ([245](https://github.com/fastai/fastcore/issues/245))
- Added obj2dict ([244](https://github.com/fastai/fastcore/issues/244))
- `return_headers` param for `urlsend` and `urlread` ([242](https://github.com/fastai/fastcore/issues/242))
- add common Chrome headers ([241](https://github.com/fastai/fastcore/issues/241))
- add `utc2local` and `local2utc` ([239](https://github.com/fastai/fastcore/issues/239))
- add `Path.read_json` ([238](https://github.com/fastai/fastcore/issues/238))

Bugs Squashed

- `*args` not handled correctly in process/thread pools ([246](https://github.com/fastai/fastcore/issues/246))

Bugs Squashed

- regression in urlopen header user-agent not set ([237](https://github.com/fastai/fastcore/issues/237))
- `loads` incompatible with Python 3.9 ([236](https://github.com/fastai/fastcore/issues/236))
- Documentation search not working ([235](https://github.com/fastai/fastcore/issues/235))

New Features

- split `parallel` and `net` modules out of `xtras` ([234](https://github.com/fastai/fastcore/issues/234))
- New HTTP Exceptions hierarchy for each status code, used by `url*` functions
- add `Request.summary` and `debug` paramaeter to `urlsend` ([233](https://github.com/fastai/fastcore/issues/233))
- Add `ImportEnum`, `StrEnum`, and `str_enum` ([232](https://github.com/fastai/fastcore/issues/232))
- handle encoded data in `urlrequest` ([231](https://github.com/fastai/fastcore/issues/231))