update to fix two unit test regressions

sithom/curve.py

@@ -1,4 +1,5 @@
 """Polynomial curve fitting."""
+
 from typing import Callable, Tuple, Sequence, Union, Optional, Literal
 import numpy as np
 from uncertainties import unumpy as unp, ufloat
@@ -108,7 +109,7 @@ def _label(param: Sequence[ufloat]) -> str:
         param (Sequence[ufloat]): Polynomial fit to print out.
 
     Returns:
-        str: Output of polynomial (e.g 'y  = ($2\pm1$) x + 1\pm 2' )
+        str: Output of polynomial (e.g 'y  = ($2\\\\pm1$) x + 1\\\\pm 2' )
 
     Examples:
         >>> from sithom.curve import _label

sithom/plot.py

@@ -463,7 +463,7 @@ def lim(
     if balance:
         vmin, vmax = _balance(vmin, vmax)
 
-    return (vmin, vmax)
+    return (float(vmin), float(vmax))
 
 
 def pairplot(df: pd.DataFrame) -> None:
@@ -472,6 +472,8 @@ def pairplot(df: pd.DataFrame) -> None:
 
     https://stackoverflow.com/a/50835066
 
+    TODO: Add option for subplot labels (a), (b), (c) etc.
+
     Args:
         df (pd.DataFrame): A data frame.
     """

sithom/time.py

@@ -1,4 +1,5 @@
 """Time Utilities Module."""
+
 from typing import Callable
 import time
 from functools import wraps