Add YAPF style + ignore, and format tracked Python files

SYS/progress.py

@@ -10,12 +10,15 @@ import sys
 
 from models import ProgressBar
 
-
 _BAR = ProgressBar()
 
 
 def print_progress(
-    filename: str, current: int, total: int, speed: float = 0, end: str = "\r"
+    filename: str,
+    current: int,
+    total: int,
+    speed: float = 0,
+    end: str = "\r"
 ) -> None:
     _BAR.update(
         downloaded=int(current),