I want to convert this wide format of tables in pandas to:
Jan Feb Mar Apr may jun jul aug sep oct nov dec
2019 0 0 0 0 0 0 0 0 0 0 0 0
2020 0 0 0 0 0 0 0 0 0 0 0 0
2021 0 0 0 0 0 0 0 0 0 0 0 0
in this format:
YEAR MON dd
2019 DEC 0
2019 NOV 0
2019 OCT 0
2019 SEP 0
2019 AUG 0
2019 JUL 0
2019 JUN 0
2019 MAY 0
2019 APR 0
2019 MAR 0
2019 FEB 0
2019 JAN 0
2018 DEC 0
How can this be done ?