decimal comma

[DeaD_EyE]

It looks like i18n/l10n stuff. You can use locale to delocalize language-specific strings.

import locale

# get current systems locale
# and set it for the current running interpreter
locale.setlocale(locale.LC_ALL, locale.getlocale())

# input str from somewhere
value_str = "1.200.500,33"

# delocalize the value
# converting the resulting str into a float
value_float = float(locale.delocalize(value))

# format a float to a str with the current currency
value_currency = locale.currency(value_float)

The package babel has additional helper functions: https://babel.pocoo.org/en/latest/numbers.html