* add more descriptive error handling regarding poorly formatted files

* update version

* add dot prefix to json file extentions and ensure list of allowable file types is complete

* cleanup error messages and add comments to explain jsonl/json loading logic

* cleanup csv/tsv reading allowing use of elif for other file extensions, add comments, and remove unnecessary re-attempt to parse as json

* run fillna immediately upon DataFrame creation so that an additional switch is not needed

* use only 1 try-except block to catch parsing errors + cleanup error message

* separate the json and jsonl cases while still maintaining the same functionality, also include a message to user if jsonl appears to be json or vice versa

* fix bug in csv path

* use index -1 to get extension from split

* black formatting apply

* fix black

Co-authored-by: joe-at-openai <[email protected]>

Co-authored-by: Boris Power <[email protected]>