def _from_python(self, value, state):
"""Return a string using the correct grouping."""
dec_places = util.find_precision(value)
if dec_places > 0:
return format.format_decimal(value, dec_places)
else:
return format.format_number(value)
def test_find_precision():
assert util.find_precision(0) == 0
assert util.find_precision(42) == 0
assert util.find_precision(0.1) == 1
assert util.find_precision(1234567.8) == 1
assert util.find_precision(34.25) == 2
assert util.find_precision(1234567.123) == 3
assert util.find_precision(123.1234567) == 7
def test_find_precision():
assert util.find_precision(0) == 0
assert util.find_precision(42) == 0
assert util.find_precision(0.1) == 1
assert util.find_precision(1234567.8) == 1
assert util.find_precision(34.25) == 2
assert util.find_precision(1234567.123) == 3
assert util.find_precision(123.1234567) == 7
