Jinja Templates - Format a float as comma-separated currency

Question

I\'m trying to format a float as comma-separated currency. E.g. 543921.9354 becomes $543,921.94. I\'m using the format filter in Jinja t

Answer 1

Custom Filter using Babel (Can be used to format other currencies as well)

Install Babel (http://babel.pocoo.org/en/latest/api/numbers.html)

pip install Babel

Custom Jinja Filter

from babel.numbers import format_currency

@app.template_filter()
def usdollar(value):
   return format_currency(value, 'USD', locale='en_US')

app.jinja_env.filters['usdollar'] = usdollar

Usage in Jinja Template:

{{ '-10000.500' | usdollar }}

Output : -$10,000.50