[view] improvement: displaying update sizes as localized numbers (update summary)

CHANGELOG.md

@@ -14,6 +14,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
   - update summary: 
     - displaying a '+' for positive sizes (previously the sign was only displayed for negative numbers) (#250)[https://github.com/vinifmor/bauh/issues/250]
     - changing some words and symbols to improve readability and cohesion (#250)[https://github.com/vinifmor/bauh/issues/250]
+    - displaying update sizes as localized numbers [#250](https://github.com/vinifmor/bauh/issues/250)
   
 ### Fixes
 - General

bauh/app.py

@@ -1,4 +1,5 @@
 import faulthandler
+import locale
 import os
 import sys
 import traceback
@@ -25,6 +26,12 @@ def main(tray: bool = False):
 
     logger = logs.new_logger(__app_name__, bool(args.logs))
 
+    try:
+        locale.setlocale(locale.LC_NUMERIC, '')
+    except:
+        logger.error("Could not set locale 'LC_NUMBERIC' to '' to display localized numbers")
+        traceback.print_exc()
+
     if args.offline:
         logger.warning("offline mode activated")
 

bauh/commons/view_utils.py

@@ -1,3 +1,4 @@
+import locale
 from typing import Tuple, Optional, Iterable
 
 from bauh.api.abstract.view import SelectViewType, InputOption, SingleSelectComponent
@@ -34,5 +35,6 @@ def get_human_size_str(size, positive_sign: bool = False) -> Optional[str]:
 
             if size_unit < 1024:
                 size_unit = size_unit if size > 0 else size_unit * -1
-                size_str = f'{int(size_unit)} {unit}' if unit == 'B' else f'{size_unit:.2f} {unit}'
+                localized_size = locale.format_string('%.2f', size_unit)
+                size_str = f'{int(size_unit)} {unit}' if unit == 'B' else f"{localized_size} {unit}"
                 return f'+{size_str}' if positive_sign and size_unit > 0 else size_str

tests/common/test_view_utils.py

@@ -1,3 +1,4 @@
+import locale
 from unittest import TestCase
 
 from bauh.commons.view_utils import get_human_size_str
@@ -5,6 +6,12 @@ from bauh.commons.view_utils import get_human_size_str
 
 class GetHumanSizeStrTest(TestCase):
 
+    def setUp(self):
+        try:
+            locale.setlocale(locale.LC_NUMERIC, None)
+        except:
+            print("Error: could not set locale.LC_NUMERIC to None")
+
     def test__must_properly_display_B(self):
         self.assertEqual('1023 B', get_human_size_str(1023))
         self.assertEqual('-1023 B', get_human_size_str(-1023))