update var name

fix_imports.py

@@ -13,11 +13,11 @@ REGEXP = re.compile(
     r"( import.*pb2)"
 )
 PERXIS_DIR_NAME = "perxis"
-PERXIS_PATH = (Path(__file__).parent.absolute()).joinpath(PERXIS_DIR_NAME)
+PERXIS_DIR_PATH = (Path(__file__).parent.absolute()).joinpath(PERXIS_DIR_NAME)
 
 
 def main():
-    for path, _, files in os.walk(PERXIS_PATH):
+    for path, _, files in os.walk(PERXIS_DIR_PATH):
         for name in files:
             file_path = os.path.join(path, name)
             with open(file_path, "r+") as f: