feat(DataType): added datatype to handle unit conversions, checks, etc.

This commit is also fixing some issues with interger division.

ladybug/analysisperiod.py

@@ -1,4 +1,5 @@
 # coding=utf-8
+from __future__ import division
 """Ladybug analysis period class."""
 from .dt import DateTime
 from datetime import datetime, timedelta

ladybug/color.py

@@ -1,4 +1,5 @@
 # coding=utf-8
+from __future__ import division
 """Ladybug color, colorsets and colorrange."""
 
 

ladybug/datacollection.py

@@ -1,3 +1,5 @@
+# coding=utf-8
+from __future__ import division
 """Ladybug data collection."""
 from .header import Header
 from .datatype import DataPoint

ladybug/datatype.py

@@ -1,4 +1,5 @@
 # coding=utf-8
+from __future__ import division
 """Ladybug data types."""
 # from abc import ABCMeta, abstractmethod
 import math

ladybug/datatypenew.py

@@ -1,3 +1,5 @@
+# coding=utf-8
+from __future__ import division
 """Ladybug data types."""
 from ladybug.datatype import DataPoint
 

ladybug/designday.py

@@ -1,3 +1,6 @@
+# coding=utf-8
+from __future__ import division
+
 from .location import Location
 from .futil import write_to_file
 from .dt import DateTime

ladybug/dt.py

@@ -1,5 +1,6 @@
-"""Ladybug datetime."""
 # coding=utf-8
+from __future__ import division
+"""Ladybug datetime."""
 from datetime import datetime
 
 

ladybug/epw.py

@@ -1,4 +1,6 @@
 # coding=utf-8
+from __future__ import division
+
 from .location import Location
 from .analysisperiod import AnalysisPeriod
 from .datatype import DataPoint

ladybug/futil.py

@@ -1,3 +1,6 @@
+# coding=utf-8
+from __future__ import division
+
 """A collection of auxiliary funtions for working with files and directories."""
 import os
 import shutil

ladybug/header.py

@@ -1,4 +1,6 @@
 # coding=utf-8
+from __future__ import division
+
 """Ladybug Header"""
 from copy import deepcopy
 

ladybug/legendparameters.py

@@ -1,4 +1,6 @@
 # coding=utf-8
+from __future__ import division
+
 from color import ColorRange
 from listoperations import flatten, unflatten
 

ladybug/listoperations.py

@@ -1,4 +1,5 @@
 # coding=utf-8
+from __future__ import division
 """Useful functions for list operations."""
 import collections
 

ladybug/location.py

@@ -1,4 +1,5 @@
 # coding=utf-8
+from __future__ import division
 """Ladybug location."""
 import re
 

ladybug/psychrometrics.py

@@ -1,4 +1,5 @@
 # coding=utf-8
+from __future__ import division
 """Functions for converting between various humidity metrics"""
 import math
 

ladybug/rootfind.py

@@ -1,4 +1,5 @@
 # coding=utf-8
+from __future__ import division
 """
 A list of useful functions for rapid guess-and-test (or root-finding) situations.
 Using these functions will typically be much faster than a custom-built guess-and-check

ladybug/skymodel.py

@@ -1,3 +1,5 @@
+# coding=utf-8
+from __future__ import division
 """Functions for computing radiation for different idealized skies"""
 import math
 

ladybug/stat.py

@@ -1,3 +1,6 @@
+# coding=utf-8
+from __future__ import division
+
 from .location import Location
 from .analysisperiod import AnalysisPeriod
 from .designday import DesignDay

ladybug/sunpath.py

@@ -1,4 +1,6 @@
 # coding=utf-8
+from __future__ import division
+
 import math
 from collections import namedtuple
 from .location import Location

ladybug/wea.py

@@ -1,4 +1,5 @@
 # coding=utf-8
+from __future__ import division
 """Wea weather file."""
 from .epw import EPW
 from .stat import STAT

tests/datacollection_test.py

@@ -58,7 +58,7 @@ def test_to_unit(self):
  assert dc1.values[0] == 20
  assert dc3.values[0] == 293.15
  assert dc2.values[0] == 20
- assert dc4.values[0] == 266.15
+ assert dc4.values[0] == pytest.approx(266.483, rel=1e-1)
 
  def test_to_ip_si(self):
  """Test the conversion of DataCollection to IP and SI units."""