Add rows

[sg-s]

changes

• loc indexer should disallow adding new rows to a DF
• ability to modify existing rows using loc
• from_deeporigin now works with completely empty DBs
• from_deeporigin now works with DBs with no rows (but some columns)
• tests: ability to modifiy 1 row using .loc
• tests: ability to modify many rows using .loc
• tests: prevention of adding new rows to a DF
• support for appending a square chunk (similar to a DB) directly to a DB. combination of create new rows + write data
• support for writing 1 new row to a DB with all columns with data
• support for writing many rows + many columns
• documentation explaining how to add new rows to a DB

[kennyjwilli]

I'd lean more towards a row-centric add method, but if you think column centric is more pythonic, let's do that.

[sg-s]

I'd lean more towards a row-centric add method, but if you think column centric is more pythonic, let's do that.

@kennyjwilli not sure what you mean? it kinda is row centric in that you get to add rows.

[kennyjwilli]

I'd lean more towards a row-centric add method, but if you think column centric is more pythonic, let's do that.

@kennyjwilli not sure what you mean? it kinda is row centric in that you get to add rows.

You pass in columns first instead of rows. Personally, I find passing rows first much easier to work with.