Use `int(cli([getblockcount])` instead of `cli_json([getblockchaininfo])[headers]`

bitcoin.py

@@ -27,7 +27,7 @@ def loadHeaders(break_at):
     global headers
     print('Loading headers...')
     if not LOAD_FROM_HEADERS_FILE:
-        headersNumber = break_at if break_at else cli_json(['getblockchaininfo'])['headers']
+        headersNumber = break_at if break_at else int(cli(['getblockcount']))
         headerHashes = pull('getblockhash', list(range(headersNumber)), 2)
         headers = pull('getblockheader', headerHashes, 3)
     else:

[LOISON Benjamin]

Note that on a not blocks synchronized node:

• int(cli(['getblockcount'])) returns the number of synchronized blocks
• cli_json(['getblockchaininfo'])['headers'] returns the number of synchronized headers