Source code for pygal.adapters

# -*- coding: utf-8 -*-
# This file is part of pygal
# A python svg graph plotting library
# Copyright © 2012-2016 Kozea
# This library is free software: you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option) any
# later version.
# This library is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
# details.
# You should have received a copy of the GNU Lesser General Public License
# along with pygal. If not, see <>.
"""Value adapters to use when a chart doesn't accept all value types"""
from decimal import Decimal
from pygal._compat import is_str

[docs]def positive(x): """Return zero if value is negative""" if x is None: return if is_str(x): return x if x < 0: return 0 return x
[docs]def not_zero(x): """Return None if value is zero""" if x == 0: return return x
[docs]def none_to_zero(x): """Return 0 if value is None""" if x is None: return 0 return x
[docs]def decimal_to_float(x): """Cast Decimal values to float""" if isinstance(x, Decimal): return float(x) return x