Lul, fix `open_ledger_dfs()` to `yield` when ledger passed in..

piker/accounting/calc.py

@@ -353,17 +353,15 @@ def open_ledger_dfs(
     can update the ledger on exit.
 
     '''
-
+    from tractor._debug import open_crash_handler
+    with open_crash_handler():
         if not ledger:
             import time
-        from tractor._debug import open_crash_handler
             from ._ledger import open_trade_ledger
 
             now = time.time()
-        with (
-            open_crash_handler(),
 
-            open_trade_ledger(
+            with open_trade_ledger(
                     brokername,
                     acctname,
                     rewrite=True,
@@ -372,20 +370,12 @@ def open_ledger_dfs(
                     # proxied through from caller
                     **kwargs,
 
-            ) as ledger,
-        ):
+            ) as ledger:
                 if not ledger:
                     raise ValueError(f'No ledger for {acctname}@{brokername} exists?')
 
                 print(f'LEDGER LOAD TIME: {time.time() - now}')
 
-            # process raw TOML ledger into txns using the
-            # appropriate backend normalizer.
-            # cache: AssetsInfo = get_symcache(
-            #     brokername,
-            #     allow_reload=True,
-            # )
-
         yield ledger_to_dfs(ledger), ledger