number decorations

f"{1:04d}"

# '0001'

f'{100000:,}'

​#'100,000'

str(datetime.today().year) + f"/{100:07d}" 

#'2023/0000100'

this_date = '1402/12/11'

dt = re.findall( '([\d]{4})/([\d]{1,2})/([\d]{1,2})', this_date)

# [('1402', '12', '11')]

Odoo xml report

t-esc="'%.2f' % (1000)"

# 1000.00


t-esc="'{:,d}'.format(12345678)"
# 12,345,678