fix lint errors and lock deps (#8312)

Author: TomeHirata

dspy/dsp/colbertv2.py

@@ -151,7 +151,7 @@ def forward(self, query: str, k: int = 7, **kwargs):
 
         if kwargs.get("filtered_pids"):
             filtered_pids = kwargs.get("filtered_pids")
-            assert type(filtered_pids) == List[int], "The filtered pids should be a list of integers"
+            assert isinstance(filtered_pids, list) and all(isinstance(pid, int) for pid in filtered_pids), "The filtered pids should be a list of integers"
             device = "cuda" if torch.cuda.is_available() else "cpu"
             results = self.searcher.search(
                 query,

dspy/streaming/streaming_listener.py

@@ -193,7 +193,7 @@ def find_predictor_for_stream_listeners(program: "Module", stream_listeners: Lis
                     "predictor to use for streaming. Please specify the predictor to listen to."
                 )
 
-            if field_info.annotation != str:
+            if field_info.annotation is not str:
                 raise ValueError(
                     f"Stream listener can only be applied to string output field, but your field {field_name} is of "
                     f"type {field_info.annotation}."