ruff fixes

for more information, see https://pre-commit.ci

compression/ppm.py

@@ -1,4 +1,5 @@
 from __future__ import annotations
+
 import sys
 from collections import defaultdict
 
@@ -7,7 +8,8 @@ from collections import defaultdict
 
 class PPMNode:
     def __init__(self) -> None:
-        # Initialize a PPMNode with a dictionary for child nodes and a count of total occurrences
+        # Initialize a PPMNode with a dictionary for child nodes
+        # and a count of total occurrences
         self.counts: dict[str, PPMNode] = defaultdict(PPMNode)
         self.total: int = 0
 
@@ -43,7 +45,8 @@ class PPM:
             self.update_model(context, symbol)
             # Encode the symbol based on the current context
             compressed_output.append(self.encode_symbol(context, symbol))
-            # Update the context by appending the symbol, keeping it within the specified order
+            # Update the context by appending the symbol,
+            # keeping it within the specified order
             context = (context + symbol)[-self.order :]  # Keep the context within order
 
         return compressed_output
@@ -92,7 +95,8 @@ class PPM:
             else:
                 return None  # Return None if the context is not found
 
-        # Iterate through the children of the node to find the symbol matching the given probability
+        # Iterate through the children of the node to
+        # find the symbol matching the given probability
         for symbol, child in node.counts.items():
             if child.total / node.total == prob:
                 return symbol  # Return the symbol if the probability matches
@@ -101,7 +105,7 @@ class PPM:
 
 def read_file(file_path: str) -> str:
     """Read the entire file and return its content as a string."""
-    with open(file_path, "r") as f:
+    with open(file_path) as f:
         return f.read()