changed print to stderr to use warnings module

src/tfscript/cli.py

@@ -13,6 +13,7 @@ __copyright__ = "Copyright © 2022 Nicholas Hope. See LICENSE for details."
 import sys
 import os
 import argparse
+import warnings
 from tempfile import NamedTemporaryFile
 import yaml
 from platform import system as GetOSName, release as GetOSRelease
@@ -90,13 +91,11 @@ def parseCLI():
 def getTargetDir(systemName):
     if systemName == "Darwin":
         if float( '.'.join( GetOSRelease().split('.')[0:2] ) ) >= 10.15:
-            if not args.force:
-                print(
-                    "As of macOS Catalina (v10.15), 32-bit applications "
-                    "such as tf2 do not work, so tfscript does not function",
-                    file=sys.stderr
-                )
-        else:
+            warnings.warn(
+                "As of macOS Catalina (v10.15), 32-bit applications "
+                "like TF2 do not run. tfscript will run, but you can't run TF2 "
+                "on this system",
+                category=RuntimeWarning )
             return os.path.expanduser("~/Library/Application Support/Steam/")
 
     elif systemName == "Windows":
@@ -109,7 +108,7 @@ def getTargetDir(systemName):
         return os.path.expanduser("~/.local/Steam")
 
     elif systemName == "Java":
-        print("Java-based OSes are not supported yet by tfscript.", file=sys.stderr)
+        warnings.warn("Java-based OSes are not supported yet by tfscript.", category=RuntimeWarning)
 
     return None