diff --git a/tidal_dl_ng/download.py b/tidal_dl_ng/download.py
index 350150b..70d8123 100644
--- a/tidal_dl_ng/download.py
+++ b/tidal_dl_ng/download.py
@@ -137,11 +137,7 @@ class Download:
 
         # Compute if and how downloads need to be skipped.
         if self.skip_existing:
-            if self.skip_existing == SkipExisting.ExtensionIgnore:
-                extension_ignore = True
-            else:
-                extension_ignore = False
-
+            extension_ignore = self.skip_existing == SkipExisting.ExtensionIgnore
             # TODO: Check if extension is already in `path_file` or not.
             download_skip = check_file_exists(path_file, extension_ignore=extension_ignore)
         else:
diff --git a/tidal_dl_ng/helper/format.py b/tidal_dl_ng/helper/format.py
index ab62a69..f71b28d 100644
--- a/tidal_dl_ng/helper/format.py
+++ b/tidal_dl_ng/helper/format.py
@@ -1,9 +1,8 @@
 def is_xml(value: str) -> bool:
     result = False
 
-    if value:
-        if value.startswith("<?xml"):
-            result = True
+    if value and value.startswith("<?xml"):
+        result = True
 
     return result
 
@@ -11,8 +10,7 @@ def is_xml(value: str) -> bool:
 def is_json(value: str) -> bool:
     result = False
 
-    if value:
-        if value.startswith("{"):
-            result = True
+    if value and value.startswith("{"):
+        result = True
 
     return result
diff --git a/tidal_dl_ng/helper/path.py b/tidal_dl_ng/helper/path.py
index a907985..5acfff4 100644
--- a/tidal_dl_ng/helper/path.py
+++ b/tidal_dl_ng/helper/path.py
@@ -128,12 +128,12 @@ def path_file_sanitize(path_file: str, adapt: bool = False) -> (bool, str):
     # Sanitize path
     try:
         pathname_sanitized = sanitize_filepath(pathname, replacement_text=" ", validate_after_sanitize=True)
-    except ValidationError as e:
+    except ValidationError:
         # If adaption of path is allowed in case of an error set path to HOME.
         if adapt:
             pathname_sanitized = Path.home()
         else:
-            raise e
+            raise
 
     # Sanitize filename
     try:
@@ -146,7 +146,10 @@ def path_file_sanitize(path_file: str, adapt: bool = False) -> (bool, str):
             file_extension = "_" + Path(path_file).suffix
             filename_sanitized = filename_sanitized[: -len(file_extension)] + file_extension
     except ValidationError as e:
-        raise e
+        # TODO: Implement proper exception handling and logging.
+        print(e)
+
+        raise
 
     # Join path and filename
     result = os.path.join(pathname_sanitized, filename_sanitized)
@@ -158,6 +161,7 @@ def check_file_exists(path_file: str, extension_ignore: bool = False):
     if extension_ignore:
         path_file = Path(path_file).stem + ".*"
 
-    result = True if glob.glob(path_file) else False
+    # TODO: Check what happens is (no) files .
+    result = bool(glob.glob(path_file))
 
     return result