I want to change the price and add in Excel file to a new sheet and add subsequent changes to this sheet. I use the pandas and openpyxl library

Question

def prod_medik():
with pd.ExcelWriter(\'pills.xlsx\', engine=\'openpyxl\', mode=\'a\') as writer:
    df = pd.read_excel(\'pills.xlsx\', sheet_name=\'spisok\')
    i