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Since this thing is on the innerwebs I suppose it should have a
[python_utils.git]
/
conversion_utils.py
diff --git
a/conversion_utils.py
b/conversion_utils.py
index 43268400021443344809b59dd8ced0fb91b9de18..68292caccbc692570010ab5ed98c10cbcc05d9c7 100644
(file)
--- a/
conversion_utils.py
+++ b/
conversion_utils.py
@@
-1,7
+1,11
@@
#!/usr/bin/env python3
#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
-from numbers import Number
-from typing import Callable
+# © Copyright 2021-2022, Scott Gasch
+
+"""Utilities involving converting between different units."""
+
+from typing import Callable, SupportsFloat
import constants
import constants
@@
-38,10
+42,10
@@
class Converter(object):
self.from_canonical_f = from_canonical
self.unit = unit
self.from_canonical_f = from_canonical
self.unit = unit
- def to_canonical(self, n:
Number) -> Number
:
+ def to_canonical(self, n:
SupportsFloat) -> SupportsFloat
:
return self.to_canonical_f(n)
return self.to_canonical_f(n)
- def from_canonical(self, n:
Number) -> Number
:
+ def from_canonical(self, n:
SupportsFloat) -> SupportsFloat
:
return self.from_canonical_f(n)
def unit_suffix(self) -> str:
return self.from_canonical_f(n)
def unit_suffix(self) -> str:
@@
-86,9
+90,7
@@
conversion_catalog = {
lambda c: c * 1.8 + 32.0,
"°F",
),
lambda c: c * 1.8 + 32.0,
"°F",
),
- "Celsius": Converter(
- "Celsius", "temperature", lambda c: c, lambda c: c, "°C"
- ),
+ "Celsius": Converter("Celsius", "temperature", lambda c: c, lambda c: c, "°C"),
"Kelvin": Converter(
"Kelvin",
"temperature",
"Kelvin": Converter(
"Kelvin",
"temperature",
@@
-99,7
+101,7
@@
conversion_catalog = {
}
}
-def convert(magnitude:
Number
, from_thing: str, to_thing: str) -> float:
+def convert(magnitude:
SupportsFloat
, from_thing: str, to_thing: str) -> float:
src = conversion_catalog.get(from_thing, None)
dst = conversion_catalog.get(to_thing, None)
if src is None or dst is None:
src = conversion_catalog.get(from_thing, None)
dst = conversion_catalog.get(to_thing, None)
if src is None or dst is None:
@@
-109,9
+111,7
@@
def convert(magnitude: Number, from_thing: str, to_thing: str) -> float:
return _convert(magnitude, src, dst)
return _convert(magnitude, src, dst)
-def _convert(
- magnitude: Number, from_unit: Converter, to_unit: Converter
-) -> float:
+def _convert(magnitude: SupportsFloat, from_unit: Converter, to_unit: Converter) -> float:
canonical = from_unit.to_canonical(magnitude)
converted = to_unit.from_canonical(canonical)
return float(converted)
canonical = from_unit.to_canonical(magnitude)
converted = to_unit.from_canonical(canonical)
return float(converted)