Fix tests.

Author: domdfcoding

domdf_python_tools/paths.py

@@ -576,11 +576,12 @@ def dump_json(
 			with gzip.open(self, mode="wt", encoding=encoding, errors=errors) as fp:
 				fp.write(json_library.dumps(data, **kwargs))
 
-		self.write_clean(
-				json_library.dumps(data, **kwargs),
-				encoding=encoding,
-				errors=errors,
-				)
+		else:
+			self.write_clean(
+					json_library.dumps(data, **kwargs),
+					encoding=encoding,
+					errors=errors,
+					)
 
 	def load_json(
 			self,

domdf_python_tools/utils.py

@@ -92,13 +92,15 @@
 # this package
 import domdf_python_tools.words
 from domdf_python_tools import __version__, iterative
-from domdf_python_tools.terminal_colours import Colour, Fore
 from domdf_python_tools.typing import HasHead, String
 
 if typing.TYPE_CHECKING or domdf_python_tools.__docs:  # pragma: no cover
 	# 3rd party
 	from pandas import DataFrame, Series  # type: ignore
 
+	# this package
+	from domdf_python_tools.terminal_colours import Colour, Fore
+
 	Series.__module__ = "pandas"
 	DataFrame.__module__ = "pandas"
 
@@ -626,8 +628,8 @@ def coloured_diff(
 		tofiledate: str = '',
 		n: int = 3,
 		lineterm: str = '\n',
-		removed_colour: Colour = Fore.RED,
-		added_colour: Colour = Fore.GREEN,
+		removed_colour: Optional["Colour"] = None,
+		added_colour: Optional["Colour"] = None,
 		) -> str:
 	r"""
 	Compare two sequences of lines; generate the delta as a unified diff.
@@ -682,6 +684,15 @@ def coloured_diff(
 	# this package
 	from domdf_python_tools.stringlist import StringList
 
+	with warnings.catch_warnings():
+		warnings.simplefilter("ignore", DeprecationWarning)
+
+		# this package
+		from domdf_python_tools.terminal_colours import Fore
+
+	removed_colour = removed_colour or Fore.RED
+	added_colour = added_colour or Fore.GREEN
+
 	buf = StringList()
 	diff = difflib.unified_diff(a, b, fromfile, tofile, fromfiledate, tofiledate, n, lineterm)