add ungz function

utils/file_handle.py

+import gzip
 import zipfile
 
 
@@ -12,3 +13,10 @@ def unzip(zip_path, save_path):
     print('the unzipping process is over...')
     f.close()
 
+
+def ungz(file_path: str):
+    """unzip the file like *.gz """
+    new_file_name = file_path.replace(".gz", "")
+    g_file = gzip.GzipFile(file_path)
+    open(new_file_name, "wb+").write(g_file.read())
+    g_file.close()