Fastcore

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))

New Features

- use `__slots__` in `store_attr` if exists ([226](https://github.com/fastai/fastcore/issues/226))
- add `urlrequest` ([225](https://github.com/fastai/fastcore/issues/225))
- add `loads` and `urlsend` ([224](https://github.com/fastai/fastcore/issues/224))
- add `PartialFormatter` and `partial_format` ([223](https://github.com/fastai/fastcore/issues/223))
- add `stringfmt_names` ([222](https://github.com/fastai/fastcore/issues/222))

New Features

- rename `negate_func` to `not_` for consistency with other curried ops ([221](https://github.com/fastai/fastcore/issues/221))
- Support empty content for `urljson` ([219](https://github.com/fastai/fastcore/issues/219))
- move `patch` and `patch_to` to `fastcore.basics`, and avoid clobbering existing symbols when patching ([214](https://github.com/fastai/fastcore/issues/214))

New Features

- add `startthread` ([218](https://github.com/fastai/fastcore/issues/218))
- make `run` compatible with py36 ([216](https://github.com/fastai/fastcore/issues/216))
- `reuse_addr` param to `start_server` ([215](https://github.com/fastai/fastcore/issues/215))
- add rfc3986 list to `urlquote` ([213](https://github.com/fastai/fastcore/issues/213))

New Features

- quote URL paths in `urlwrap` ([211](https://github.com/fastai/fastcore/issues/211))
- Add `start_server` and `start_client` for simple socket networking ([210](https://github.com/fastai/fastcore/issues/210))
- new `uniqueify` and `val2idx` functions, and additional params to `listify` ([209](https://github.com/fastai/fastcore/issues/209))
- improve representation in `basic_repr` ([197](https://github.com/fastai/fastcore/issues/197))