Merge pull request #83 from DHI/skill-class-set-precision

Fix deprecation warning from pandas styler

fmskill/__init__.py

@@ -18,7 +18,7 @@
 # Dev branch marker is: 'X.Y.dev' or 'X.Y.devN' where N is an integer.
 # 'X.Y.dev0' is the canonical version of 'X.Y.dev'
 #
-__version__ = "0.4.dev7"
+__version__ = "0.3.6"
 
 if "64" not in architecture()[0]:
     raise Exception("This library has not been tested for a 32 bit system.")

fmskill/skill.py

@@ -1,3 +1,4 @@
+import sys
 import warnings
 from collections.abc import Iterable
 import numpy as np
@@ -170,7 +171,7 @@ def _get_index_level_by_name(self, name):
             # raise ValueError(f"name {name} not in index {list(self.index.names)}")
 
     def _id_to_name(self, index, id):
-        """Assumes that index is valid and id is int """
+        """Assumes that index is valid and id is int"""
         if isinstance(id, Iterable):
             name_list = []
             for i in id:
@@ -506,7 +507,11 @@ def style(
                         f"Invalid column name {column} (must be one of {float_cols})"
                     )
 
-        sdf = self.df.style.set_precision(precision)
+        sdf = (
+            self.df.style.format(precision=precision)
+            if sys.version_info >= (3, 7)
+            else self.df.style.set_precision(precision)
+        )
 
         # apply background gradient
         bg_cols = list(set(columns) & set(float_cols))

setup.py

@@ -8,7 +8,7 @@
 
 setuptools.setup(
     name="fmskill",
-    version="0.4.dev7",
+    version="0.3.6",
     install_requires=[
         "numpy",
         "pandas",