These suites turn warnings into errors, and pandas 3.1.0 adds
Pandas4Warning deprecations for several patterns they use. Every change
also passes with the locked pandas 3.0.6.
- fred, sec: replace inplace=True sort_values/reset_index/rename/
set_index/drop with reassignment
- fred balance_of_payments, sec as_filed_widget: replace fillna with a
string on float columns by astype(object).where(notna, ...)
- sec: build quarter start dates from ISO strings instead of parsing
"2024Q2"-style strings; use the DataFrame constructor instead of
DataFrame.from_records for column dicts; pad CIK lookup rows to two
fields instead of constructing a ragged DataFrame
- eia: read EIA workbooks with the calamine engine (xlrd is deprecated);
replace the xlrd dependency with python-calamine and relock; calamine
workbooks are not safe for concurrent reads, so the petroleum status
report serializes its sheet reads with a lock