Snowpack percentage function

[jinducil]

Closes #81; also addresses MBKEngineers/safca-portal#77

• Adds get_daily_snowpack_data function to CDEC queries.py
• Takes in region and date_string (YYYYMMDD) as arguments; date_string is optional argument, will use today's date if none provided
• Returns dictionary with metadata and data for % values

Code to test

from collect.dwr import cdec

data = cdec.get_daily_snowpack_data('CENTRAL')
print(data['meta'])
print(data['data'])

[narlesky]

Very nice work - the layout and content of this function is really clear!

A couple of thoughts:

1. Could you please extend this to return the No. of Stations and Avg. SWC reported as well?
2. It would also be very powerful to be able to query a date range for these values.
3. What do you think about allowing the date to be specified as a datetime.datetime structure? I could see an argument for providing as a string if it makes the timezone handling easier though. Let me know what you think!

[jinducil]

@narlesky Changes made!

• Now returns dataframe containing # of stations and average SWC
• Now queries a date range
• Validates start/end times

Updated code to test

from collect.dwr import cdec
import datetime as dt

data = cdec.get_daily_snowpack_data('CENTRAL', dt.datetime(2003, 2, 15), dt.datetime(2023, 2, 9))
print(data['data'])

[narlesky]

Looks ready to merge! 🎉. Would love to share with a wider audience within MBK at some point soon :)