* allow use of a `.env`-style files in BaseSettings (#607)
* address various issues with initial implementation
- allow specifying `_env_file` kwarg in instantiation
* overrides any `env_file` specified in the `Config` class
- cast `os.environ` as a dict for better consistenty of behavior
- `env_path` should be a `Path` type
- replace `with open()` with `read_text`
- use regex for parsing the dotenv files and throw error on invalid line
- factor out `read_env_file` into separate file for easier testing
* move back into a single file; revert typing changes; use regex better
* pass `_env_file` argument around instead of setting a class attribute
* add dotenv docs
* add dotenv tests
* Add changes file
* Flesh out the docs a bit
* Apply suggestions from @samuelcolvin's code review
Co-Authored-By: Samuel Colvin <samcolvin@gmail.com>
* wrap docs
* add not about priority
* fix tests and imports
* fix tests
* switch to python-dotenv
* cleanup, test example
* more docs tweaks
* typo
* fix tests for dotenv
Co-authored-by: Samuel Colvin <samcolvin@gmail.com>
* new URL parsing, fix#603, fix#541
* AnyUrl parts and more tests
* more coverage and db DSNs
* remove DSN methods
* tests for urlstr
* remove debug
* make AnyStr a subtype of str
* fix with cython
* rearranging networking code
* allowing international domains, cleanup
* support international domains
* better URL builder
* allow underscores in subdomains and domains
* tests for json and schema, max length
* urlstr > stricturl
* updating docs
* tweak docs examples
* tweak docs
* Update sphinx from 2.0.1 to 2.1.2
* Update typing-extensions from 3.7.2 to 3.7.4
* Update cython from 0.29.9 to 0.29.11
* Update isort from 4.3.20 to 4.3.21
* Update mypy from 0.701 to 0.711
* Update pytest from 4.6.0 to 5.0.0
* pytest and mypy fixes
* prevent deprication warnings
* add type hints, fix#372
* fix tests and BaseModel inference
* fix#280
* fix dataclasses and docs
* more typing
* adding hints to fields.py
* type **EVERTHING*
* fix for 3.6
* small speed ups and some typ checks
* correct model.copy
* update history
Connor