refactor(py): enable the live feature conditionally.

Author: nkaz001

py-hftbacktest/hftbacktest/__init__.py

@@ -59,8 +59,9 @@
         ROIVectorMarketDepthLiveBot_,
         ROIVectorMarketDepthLiveBot as ROIVectorMarketDepthLiveBot_TypeHint,
     )
+    LIVE_FEATURE = True
 except:
-    pass
+    LIVE_FEATURE = False
 
 __all__ = (
     'BacktestAsset',
@@ -217,7 +218,7 @@ def ROIVectorMarketDepthBacktest(
     return ROIVectorMarketDepthBacktest_(ptr)
 
 
-try:
+if LIVE_FEATURE:
     def ROIVectorMarketDepthLiveBot(
             assets: List[LiveInstrument]
     ) -> ROIVectorMarketDepthLiveBot_TypeHint:
@@ -232,6 +233,3 @@ def ROIVectorMarketDepthLiveBot(
         """
         ptr = build_roivec_livebot(assets)
         return ROIVectorMarketDepthLiveBot_(ptr)
-
-except:
-    pass

py-hftbacktest/hftbacktest/binding.py

@@ -28,6 +28,8 @@
 from .state import StateValues, StateValues_
 from .types import event_dtype, state_values_dtype, EVENT_ARRAY
 
+LIVE_FEATURE = 'build_hashmap_livebot' in dir(_hftbacktest)
+
 lib = CDLL(_hftbacktest.__file__)
 
 hashmapdepth_best_bid_tick = lib.hashmapdepth_best_bid_tick
@@ -1310,7 +1312,7 @@ def order_latency(self, asset_no: uint64) -> Tuple[int64, int64, int64] | None:
 
 ROIVectorMarketDepthBacktest_ = jitclass(ROIVectorMarketDepthBacktest)
 
-try:
+if LIVE_FEATURE:
     hashmaplive_elapse = lib.hashmaplive_elapse
     hashmaplive_elapse.restype = c_int64
     hashmaplive_elapse.argtypes = [c_void_p, c_uint64]
@@ -2144,6 +2146,3 @@ def order_latency(self, asset_no: uint64) -> Tuple[int64, int64, int64] | None:
 
 
     ROIVectorMarketDepthLiveBot_ = jitclass(ROIVectorMarketDepthLiveBot)
-
-except:
-    pass