diff --git a/pywikibot/diff.py b/pywikibot/diff.py
index 005da215d5..d1ec07c8c0 100644
--- a/pywikibot/diff.py
+++ b/pywikibot/diff.py
@@ -139,7 +139,7 @@ def format_diff(self) -> Iterable[str]:
                 # or color whole line to be added.
                 fmt = fmt if fmt.startswith('?') else ''
                 fmt = fmt[:min(len(fmt), len(line1))]
-                fmt = fmt if fmt else None
+                fmt = fmt or None
                 yield self.color_line(line1, fmt)
 
         # handle last line
@@ -155,7 +155,7 @@ def format_diff(self) -> Iterable[str]:
             # or color whole line to be added.
             fmt = line1 if line1.startswith('?') else ''
             fmt = fmt[:min(len(fmt), len(line2))]
-            fmt = fmt if fmt else None
+            fmt = fmt or None
             yield self.color_line(line2, fmt)
 
     def color_line(self, line: str, line_ref: str | None = None) -> str:
diff --git a/pywikibot/site/_datasite.py b/pywikibot/site/_datasite.py
index fd27d56dd7..e96d49478c 100644
--- a/pywikibot/site/_datasite.py
+++ b/pywikibot/site/_datasite.py
@@ -188,7 +188,7 @@ def loadcontent(self, identification, *props):
                                     # TODO: When props is empty it results in
                                     # an empty string ('&props=') but it should
                                     # result in a missing entry.
-                                    props=props if props else False)
+                                    props=props or False)
         req = self.simple_request(**params)
         data = req.submit()
         if 'success' not in data:
diff --git a/scripts/category.py b/scripts/category.py
index 12ac25e042..15200be104 100755
--- a/scripts/category.py
+++ b/scripts/category.py
@@ -710,7 +710,7 @@ def __init__(self, oldcat,
             # Category is deleted.
             self.deletion_comment = i18n.twtranslate(
                 self.site, 'category-was-disbanded')
-        self.move_comment = move_comment if move_comment else self.comment
+        self.move_comment = move_comment or self.comment
 
     def run(self) -> None:
         """The main bot function that does all the work.