create bulk yyyymm

create_year.py

def create_yearmonth_list(start_year:int, end_year: int):
    start_at = start_year * 100
    end_at = end_year - start_year
    
    for year in range(0,end_at+1):
        year_acc = year*100
        start = start_at + year_acc
        
        for month in range(1,13):
            yyyymm = start+month
            yield yyyymm

list(create_yearmonth_list(1998,2001))

"""
[199801,
 199802,
 199803,
 199804,
 199805,
 199806,
 199807,
 199808,
 199809,
 199810,
 199811,
 199812,
 199901,
 199902,
 199903,
 199904,
 199905,
 199906,
 199907,
 199908,
 199909,
 199910,
 199911,
 199912,
 200001,
 200002,
 200003,
 200004,
 200005,
 200006,
 200007,
 200008,
 200009,
 200010,
 200011,
 200012,
 200101,
 200102,
 200103,
 200104,
 200105,
 200106,
 200107,
 200108,
 200109,
 200110,
 200111,
 200112,
"""