updated download progress bar

dmmUpdater.py

@@ -1,24 +1,10 @@
 import os
+import sys
 import hashlib
 import requests
 import urllib.parse
 from urllib.request import urlretrieve
 
-import sys
-def progressbar(it, prefix="", size=60, out=sys.stdout): # Python3.3+
-    """https://stackoverflow.com/questions/3160699/python-progress-bar"""
-    count = len(it)
-    if count == 0: return
-    def show(j):
-        x = int(size*j/count)
-        print("{}[{}{}] {}/{}".format(prefix, "#"*x, "."*(size-x), j, count), 
-                end='\r', file=out, flush=True)
-    show(0)
-    for i, item in enumerate(it):
-        yield item
-        show(i+1)
-    print("\n", flush=True, file=out)
-    
 def get_file_list(url):
     url = "https://apidgp-gameplayer.games.dmm.com" + url
     print("Retrieving file list from " + url)
@@ -71,10 +57,36 @@ def update_game(game_path, files_url, files_param):
         
     print("Files to download:", len(files_to_download))
 
-    for file in progressbar(files_to_download, "Downloading: ", 40):
+    count = len(files_to_download)
+    if count > 0:
+        index = 0
+        max_len = 0
+        def show(j, downloaded, total_size):
+            nonlocal max_len
+            x = int(40*j/count)
+            string = "Downloading: [{}{}] {}/{} ({}/{})".format("#"*x, "."*(40-x), j, count, min(downloaded,total_size), total_size)
+            max_len = max(len(string), max_len)
+            print(string.ljust(max_len, ' '), end='\r', file=sys.stdout, flush=True)
+        def show_progress(block_num, block_size, total_size):
+            downloaded = block_num * block_size
+            show(index + 1, downloaded, total_size)
+
+        retries = 3
+        show(0, 0, 0)
+        while index < len(files_to_download):
+            try:
+                file = files_to_download[index]
                 url, path = file["url"], file["path"]
                 os.makedirs(os.path.dirname(path), exist_ok=True)
-        urlretrieve(url, path)
+                urlretrieve(url, path, reporthook=show_progress)
+                index += 1
+                retries = 3
+            except:
+                retries -= 1
+                if retries == 0:
+                    print(f'Retry for file {file["url"]} failed 3 times')
+                    return False
+        print("\n", flush=True, file=sys.stdout)
 
     # #files_to_delete is unused until fully tested
     # for file in files_to_delete: