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pocketflow
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refactor

This commit is contained in:
zachary62 2024-12-26 07:52:07 +00:00
parent 11d85d78c1
commit 9af98f00f3
1 changed files with 20 additions and 20 deletions
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40
minillmflow/__init__.py
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@ -4,7 +4,7 @@ class BaseNode:
def __init__(self): self.params,self.successors={},{}
def set_params(self,params): self.params=params
def add_successor(self,node,cond="default"):
if cond in self.successors: warnings.warn(f"Overwriting existing successor for '{cond}'")
if cond in self.successors: warnings.warn(f"Overwriting successor for condition '{cond}'")
self.successors[cond]=node;return node
def prep(self,shared): return None
def exec(self,shared,prep_res): return None
@ -15,7 +15,7 @@ class BaseNode:
exec_res=self._exec(shared,prep_res)
return self.post(shared,prep_res,exec_res)
def run(self,shared):
if self.successors: warnings.warn("This node has successors. Create a parent Flow instead.")
if self.successors: warnings.warn("Node won't run successors. Use a parent Flow instead.")
return self._run(shared)
def __rshift__(self,other): return self.add_successor(other)
def __sub__(self,cond):
@ -27,7 +27,9 @@ class _ConditionalTransition:
def __rshift__(self,tgt): return self.src.add_successor(tgt,self.cond)
class Node(BaseNode):
def __init__(self,max_retries=1): super().__init__();self.max_retries=max_retries
def __init__(self,max_retries=1):
super().__init__()
self.max_retries=max_retries
def process_after_fail(self,shared,prep_res,exc): raise exc
def _exec(self,shared,prep_res):
for i in range(self.max_retries):
@ -37,50 +39,49 @@ class Node(BaseNode):
class BatchNode(Node):
def prep(self,shared): return []
def exec(self,shared,item): return None
def _exec(self,shared,items): return [super(Node,self)._exec(shared,i) for i in items]
class BaseFlow(BaseNode):
class Flow(BaseNode):
def __init__(self,start_node):
super().__init__()
self.start_node=start_node
def get_next_node(self,curr,cond):
nxt=curr.successors.get(cond)
if not nxt and curr.successors: warnings.warn(f"Flow ends. '{cond}' not among {list(curr.successors)}")
nxt=curr.successors.get(cond if cond is not None else "default")
if not nxt and curr.successors:
warnings.warn(f"Flow ends: condition '{cond}' not found in {list(curr.successors)}")
return nxt
class Flow(BaseFlow):
def _exec(self,shared,params=None):
curr,p=self.start_node,(params if params else {**self.params})
while curr:
curr.set_params(p)
c=curr._run(shared)
curr=self.get_next_node(curr,c)
def exec(self,shared,prep_res): raise NotImplementedError
def exec(self,shared,prep_res):
raise RuntimeError("Flow should not exec directly. Create a child Node instead.")
class BaseBatchFlow(BaseFlow):
class BatchFlow(Flow):
def prep(self,shared): return []
class BatchFlow(BaseBatchFlow,Flow):
def _run(self,shared):
prep_res=self.prep(shared)
for batch_params in prep_res:self._exec(shared,{**self.params,**batch_params})
return self.post(shared,prep_res,None)
class AsyncNode(Node):
def post(self,shared,prep_res,exec_res): raise NotImplementedError("Use post_async")
def post(self,shared,prep_res,exec_res):
raise RuntimeError("AsyncNode should post using post_async instead.")
async def post_async(self,shared,prep_res,exec_res):
await asyncio.sleep(0);return "default"
async def run_async(self,shared):
if self.successors: warnings.warn("This node has successors. Create a parent AsyncFlow.")
if self.successors:
warnings.warn("Node won't run successors. Use a parent AsyncFlow instead.")
return await self._run_async(shared)
async def _run_async(self,shared):
prep_res=self.prep(shared)
exec_res=self._exec(shared,prep_res)
return await self.post_async(shared,prep_res,exec_res)
def _run(self,shared): raise RuntimeError("AsyncNode requires async execution")
def _run(self,shared): raise RuntimeError("AsyncNode should run using run_async instead.")
class AsyncFlow(BaseFlow,AsyncNode):
class AsyncFlow(Flow,AsyncNode):
async def _exec_async(self,shared,params=None):
curr,p=self.start_node,(params if params else {**self.params})
while curr:
@ -92,9 +93,8 @@ class AsyncFlow(BaseFlow,AsyncNode):
await self._exec_async(shared)
return await self.post_async(shared,prep_res,None)
class BatchAsyncFlow(BaseBatchFlow,AsyncFlow):
class BatchAsyncFlow(BatchFlow,AsyncFlow):
async def _run_async(self,shared):
prep_res=self.prep(shared)
for batch_params in prep_res:await self._exec_async(shared,{**self.params,**batch_params})
return await self.post_async(shared,prep_res,None)
def exec(self,shared,prep_res): raise NotImplementedError("BatchAsyncFlow does not support exec")
return await self.post_async(shared,prep_res,None)