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langchain[patch]: chat histories to handle optional community dependence #21194
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79 changes: 58 additions & 21 deletions
79
libs/langchain/langchain/memory/chat_message_histories/__init__.py
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@@ -1,47 +1,84 @@ | ||
import warnings | ||
from typing import Any | ||
from typing import TYPE_CHECKING, Any | ||
|
||
from langchain_core._api import LangChainDeprecationWarning | ||
from langchain._api import create_importer | ||
|
||
from langchain._api.interactive_env import is_interactive_env | ||
if TYPE_CHECKING: | ||
from langchain_community.chat_message_histories import ( | ||
AstraDBChatMessageHistory, | ||
CassandraChatMessageHistory, | ||
ChatMessageHistory, | ||
CosmosDBChatMessageHistory, | ||
DynamoDBChatMessageHistory, | ||
ElasticsearchChatMessageHistory, | ||
FileChatMessageHistory, | ||
FirestoreChatMessageHistory, | ||
MomentoChatMessageHistory, | ||
MongoDBChatMessageHistory, | ||
Neo4jChatMessageHistory, | ||
PostgresChatMessageHistory, | ||
RedisChatMessageHistory, | ||
RocksetChatMessageHistory, | ||
SingleStoreDBChatMessageHistory, | ||
SQLChatMessageHistory, | ||
StreamlitChatMessageHistory, | ||
UpstashRedisChatMessageHistory, | ||
XataChatMessageHistory, | ||
ZepChatMessageHistory, | ||
) | ||
|
||
# Create a way to dynamically look up deprecated imports. | ||
# Used to consolidate logic for raising deprecation warnings and | ||
# handling optional imports. | ||
DEPRECATED_LOOKUP = { | ||
"AstraDBChatMessageHistory": "langchain_community.chat_message_histories", | ||
"CassandraChatMessageHistory": "langchain_community.chat_message_histories", | ||
"ChatMessageHistory": "langchain_community.chat_message_histories", | ||
"CosmosDBChatMessageHistory": "langchain_community.chat_message_histories", | ||
"DynamoDBChatMessageHistory": "langchain_community.chat_message_histories", | ||
"ElasticsearchChatMessageHistory": "langchain_community.chat_message_histories", | ||
"FileChatMessageHistory": "langchain_community.chat_message_histories", | ||
"FirestoreChatMessageHistory": "langchain_community.chat_message_histories", | ||
"MomentoChatMessageHistory": "langchain_community.chat_message_histories", | ||
"MongoDBChatMessageHistory": "langchain_community.chat_message_histories", | ||
"Neo4jChatMessageHistory": "langchain_community.chat_message_histories", | ||
"PostgresChatMessageHistory": "langchain_community.chat_message_histories", | ||
"RedisChatMessageHistory": "langchain_community.chat_message_histories", | ||
"RocksetChatMessageHistory": "langchain_community.chat_message_histories", | ||
"SQLChatMessageHistory": "langchain_community.chat_message_histories", | ||
"SingleStoreDBChatMessageHistory": "langchain_community.chat_message_histories", | ||
"StreamlitChatMessageHistory": "langchain_community.chat_message_histories", | ||
"UpstashRedisChatMessageHistory": "langchain_community.chat_message_histories", | ||
"XataChatMessageHistory": "langchain_community.chat_message_histories", | ||
"ZepChatMessageHistory": "langchain_community.chat_message_histories", | ||
} | ||
|
||
def __getattr__(name: str) -> Any: | ||
from langchain_community import chat_message_histories | ||
_import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP) | ||
|
||
# If not in interactive env, raise warning. | ||
if not is_interactive_env(): | ||
warnings.warn( | ||
"Importing chat message histories from langchain is deprecated. Importing " | ||
"from langchain will no longer be supported as of langchain==0.2.0. " | ||
"Please import from langchain-community instead:\n\n" | ||
f"`from langchain_community.chat_message_histories import {name}`.\n\n" | ||
"To install langchain-community run `pip install -U langchain-community`.", | ||
category=LangChainDeprecationWarning, | ||
) | ||
|
||
return getattr(chat_message_histories, name) | ||
def __getattr__(name: str) -> Any: | ||
"""Look up attributes dynamically.""" | ||
return _import_attribute(name) | ||
|
||
|
||
__all__ = [ | ||
"AstraDBChatMessageHistory", | ||
"ChatMessageHistory", | ||
"CassandraChatMessageHistory", | ||
"ChatMessageHistory", | ||
"CosmosDBChatMessageHistory", | ||
"DynamoDBChatMessageHistory", | ||
"ElasticsearchChatMessageHistory", | ||
"FileChatMessageHistory", | ||
"FirestoreChatMessageHistory", | ||
"MomentoChatMessageHistory", | ||
"MongoDBChatMessageHistory", | ||
"Neo4jChatMessageHistory", | ||
"PostgresChatMessageHistory", | ||
"RedisChatMessageHistory", | ||
"RocksetChatMessageHistory", | ||
"SingleStoreDBChatMessageHistory", | ||
"SQLChatMessageHistory", | ||
"StreamlitChatMessageHistory", | ||
"SingleStoreDBChatMessageHistory", | ||
"UpstashRedisChatMessageHistory", | ||
"XataChatMessageHistory", | ||
"ZepChatMessageHistory", | ||
"UpstashRedisChatMessageHistory", | ||
"Neo4jChatMessageHistory", | ||
] |
28 changes: 24 additions & 4 deletions
28
libs/langchain/langchain/memory/chat_message_histories/astradb.py
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---|---|---|
@@ -1,5 +1,25 @@ | ||
from langchain_community.chat_message_histories.astradb import ( | ||
AstraDBChatMessageHistory, | ||
) | ||
from typing import TYPE_CHECKING, Any | ||
|
||
__all__ = ["AstraDBChatMessageHistory"] | ||
from langchain._api import create_importer | ||
|
||
if TYPE_CHECKING: | ||
from langchain_community.chat_message_histories import AstraDBChatMessageHistory | ||
|
||
# Create a way to dynamically look up deprecated imports. | ||
# Used to consolidate logic for raising deprecation warnings and | ||
# handling optional imports. | ||
DEPRECATED_LOOKUP = { | ||
"AstraDBChatMessageHistory": "langchain_community.chat_message_histories" | ||
} | ||
|
||
_import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP) | ||
|
||
|
||
def __getattr__(name: str) -> Any: | ||
"""Look up attributes dynamically.""" | ||
return _import_attribute(name) | ||
|
||
|
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__all__ = [ | ||
"AstraDBChatMessageHistory", | ||
] |
28 changes: 24 additions & 4 deletions
28
libs/langchain/langchain/memory/chat_message_histories/cassandra.py
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,5 +1,25 @@ | ||
from langchain_community.chat_message_histories.cassandra import ( | ||
CassandraChatMessageHistory, | ||
) | ||
from typing import TYPE_CHECKING, Any | ||
|
||
__all__ = ["CassandraChatMessageHistory"] | ||
from langchain._api import create_importer | ||
|
||
if TYPE_CHECKING: | ||
from langchain_community.chat_message_histories import CassandraChatMessageHistory | ||
|
||
# Create a way to dynamically look up deprecated imports. | ||
# Used to consolidate logic for raising deprecation warnings and | ||
# handling optional imports. | ||
DEPRECATED_LOOKUP = { | ||
"CassandraChatMessageHistory": "langchain_community.chat_message_histories" | ||
} | ||
|
||
_import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP) | ||
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||
|
||
def __getattr__(name: str) -> Any: | ||
"""Look up attributes dynamically.""" | ||
return _import_attribute(name) | ||
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||
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__all__ = [ | ||
"CassandraChatMessageHistory", | ||
] |
28 changes: 24 additions & 4 deletions
28
libs/langchain/langchain/memory/chat_message_histories/cosmos_db.py
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,5 +1,25 @@ | ||
from langchain_community.chat_message_histories.cosmos_db import ( | ||
CosmosDBChatMessageHistory, | ||
) | ||
from typing import TYPE_CHECKING, Any | ||
|
||
__all__ = ["CosmosDBChatMessageHistory"] | ||
from langchain._api import create_importer | ||
|
||
if TYPE_CHECKING: | ||
from langchain_community.chat_message_histories import CosmosDBChatMessageHistory | ||
|
||
# Create a way to dynamically look up deprecated imports. | ||
# Used to consolidate logic for raising deprecation warnings and | ||
# handling optional imports. | ||
DEPRECATED_LOOKUP = { | ||
"CosmosDBChatMessageHistory": "langchain_community.chat_message_histories" | ||
} | ||
|
||
_import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP) | ||
|
||
|
||
def __getattr__(name: str) -> Any: | ||
"""Look up attributes dynamically.""" | ||
return _import_attribute(name) | ||
|
||
|
||
__all__ = [ | ||
"CosmosDBChatMessageHistory", | ||
] |
28 changes: 24 additions & 4 deletions
28
libs/langchain/langchain/memory/chat_message_histories/dynamodb.py
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,5 +1,25 @@ | ||
from langchain_community.chat_message_histories.dynamodb import ( | ||
DynamoDBChatMessageHistory, | ||
) | ||
from typing import TYPE_CHECKING, Any | ||
|
||
__all__ = ["DynamoDBChatMessageHistory"] | ||
from langchain._api import create_importer | ||
|
||
if TYPE_CHECKING: | ||
from langchain_community.chat_message_histories import DynamoDBChatMessageHistory | ||
|
||
# Create a way to dynamically look up deprecated imports. | ||
# Used to consolidate logic for raising deprecation warnings and | ||
# handling optional imports. | ||
DEPRECATED_LOOKUP = { | ||
"DynamoDBChatMessageHistory": "langchain_community.chat_message_histories" | ||
} | ||
|
||
_import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP) | ||
|
||
|
||
def __getattr__(name: str) -> Any: | ||
"""Look up attributes dynamically.""" | ||
return _import_attribute(name) | ||
|
||
|
||
__all__ = [ | ||
"DynamoDBChatMessageHistory", | ||
] |
30 changes: 26 additions & 4 deletions
30
libs/langchain/langchain/memory/chat_message_histories/elasticsearch.py
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,5 +1,27 @@ | ||
from langchain_community.chat_message_histories.elasticsearch import ( | ||
ElasticsearchChatMessageHistory, | ||
) | ||
from typing import TYPE_CHECKING, Any | ||
|
||
__all__ = ["ElasticsearchChatMessageHistory"] | ||
from langchain._api import create_importer | ||
|
||
if TYPE_CHECKING: | ||
from langchain_community.chat_message_histories import ( | ||
ElasticsearchChatMessageHistory, | ||
) | ||
|
||
# Create a way to dynamically look up deprecated imports. | ||
# Used to consolidate logic for raising deprecation warnings and | ||
# handling optional imports. | ||
DEPRECATED_LOOKUP = { | ||
"ElasticsearchChatMessageHistory": "langchain_community.chat_message_histories" | ||
} | ||
|
||
_import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP) | ||
|
||
|
||
def __getattr__(name: str) -> Any: | ||
"""Look up attributes dynamically.""" | ||
return _import_attribute(name) | ||
|
||
|
||
__all__ = [ | ||
"ElasticsearchChatMessageHistory", | ||
] |
26 changes: 24 additions & 2 deletions
26
libs/langchain/langchain/memory/chat_message_histories/file.py
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,3 +1,25 @@ | ||
from langchain_community.chat_message_histories.file import FileChatMessageHistory | ||
from typing import TYPE_CHECKING, Any | ||
|
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__all__ = ["FileChatMessageHistory"] | ||
from langchain._api import create_importer | ||
|
||
if TYPE_CHECKING: | ||
from langchain_community.chat_message_histories import FileChatMessageHistory | ||
|
||
# Create a way to dynamically look up deprecated imports. | ||
# Used to consolidate logic for raising deprecation warnings and | ||
# handling optional imports. | ||
DEPRECATED_LOOKUP = { | ||
"FileChatMessageHistory": "langchain_community.chat_message_histories" | ||
} | ||
|
||
_import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP) | ||
|
||
|
||
def __getattr__(name: str) -> Any: | ||
"""Look up attributes dynamically.""" | ||
return _import_attribute(name) | ||
|
||
|
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__all__ = [ | ||
"FileChatMessageHistory", | ||
] |
28 changes: 24 additions & 4 deletions
28
libs/langchain/langchain/memory/chat_message_histories/firestore.py
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,5 +1,25 @@ | ||
from langchain_community.chat_message_histories.firestore import ( | ||
FirestoreChatMessageHistory, | ||
) | ||
from typing import TYPE_CHECKING, Any | ||
|
||
__all__ = ["FirestoreChatMessageHistory"] | ||
from langchain._api import create_importer | ||
|
||
if TYPE_CHECKING: | ||
from langchain_community.chat_message_histories import FirestoreChatMessageHistory | ||
|
||
# Create a way to dynamically look up deprecated imports. | ||
# Used to consolidate logic for raising deprecation warnings and | ||
# handling optional imports. | ||
DEPRECATED_LOOKUP = { | ||
"FirestoreChatMessageHistory": "langchain_community.chat_message_histories" | ||
} | ||
|
||
_import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP) | ||
|
||
|
||
def __getattr__(name: str) -> Any: | ||
"""Look up attributes dynamically.""" | ||
return _import_attribute(name) | ||
|
||
|
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__all__ = [ | ||
"FirestoreChatMessageHistory", | ||
] |
20 changes: 19 additions & 1 deletion
20
libs/langchain/langchain/memory/chat_message_histories/in_memory.py
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,3 +1,21 @@ | ||
from langchain_community.chat_message_histories.in_memory import ChatMessageHistory | ||
from typing import TYPE_CHECKING, Any | ||
|
||
from langchain._api import create_importer | ||
|
||
if TYPE_CHECKING: | ||
from langchain_community.chat_message_histories.in_memory import ChatMessageHistory | ||
|
||
# Create a way to dynamically look up deprecated imports. | ||
# Used to consolidate logic for raising deprecation warnings and | ||
# handling optional imports. | ||
DEPRECATED_LOOKUP = {"ChatMessageHistory": "langchain_community.chat_message_histories"} | ||
|
||
_import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP) | ||
|
||
|
||
def __getattr__(name: str) -> Any: | ||
"""Look up attributes dynamically.""" | ||
return _import_attribute(name) | ||
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__all__ = ["ChatMessageHistory"] |
28 changes: 24 additions & 4 deletions
28
libs/langchain/langchain/memory/chat_message_histories/momento.py
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,5 +1,25 @@ | ||
from langchain_community.chat_message_histories.momento import ( | ||
MomentoChatMessageHistory, | ||
) | ||
from typing import TYPE_CHECKING, Any | ||
|
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__all__ = ["MomentoChatMessageHistory"] | ||
from langchain._api import create_importer | ||
|
||
if TYPE_CHECKING: | ||
from langchain_community.chat_message_histories import MomentoChatMessageHistory | ||
|
||
# Create a way to dynamically look up deprecated imports. | ||
# Used to consolidate logic for raising deprecation warnings and | ||
# handling optional imports. | ||
DEPRECATED_LOOKUP = { | ||
"MomentoChatMessageHistory": "langchain_community.chat_message_histories" | ||
} | ||
|
||
_import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP) | ||
|
||
|
||
def __getattr__(name: str) -> Any: | ||
"""Look up attributes dynamically.""" | ||
return _import_attribute(name) | ||
|
||
|
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__all__ = [ | ||
"MomentoChatMessageHistory", | ||
] |
28 changes: 24 additions & 4 deletions
28
libs/langchain/langchain/memory/chat_message_histories/mongodb.py
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,5 +1,25 @@ | ||
from langchain_community.chat_message_histories.mongodb import ( | ||
MongoDBChatMessageHistory, | ||
) | ||
from typing import TYPE_CHECKING, Any | ||
|
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__all__ = ["MongoDBChatMessageHistory"] | ||
from langchain._api import create_importer | ||
|
||
if TYPE_CHECKING: | ||
from langchain_community.chat_message_histories import MongoDBChatMessageHistory | ||
|
||
# Create a way to dynamically look up deprecated imports. | ||
# Used to consolidate logic for raising deprecation warnings and | ||
# handling optional imports. | ||
DEPRECATED_LOOKUP = { | ||
"MongoDBChatMessageHistory": "langchain_community.chat_message_histories" | ||
} | ||
|
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_import_attribute = create_importer(__package__, deprecated_lookups=DEPRECATED_LOOKUP) | ||
|
||
|
||
def __getattr__(name: str) -> Any: | ||
"""Look up attributes dynamically.""" | ||
return _import_attribute(name) | ||
|
||
|
||
__all__ = [ | ||
"MongoDBChatMessageHistory", | ||
] |
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Could do in another PR, but
langchain_community
just imports this from core, so it may make sense to do the same here?