AttributeError while importing langchain_core. prompts , AttributeError: module 'requests' has no attribute 'auth'

[dakshsinghal2003]

Checked other resources

• I added a very descriptive title to this issue.
• I searched the LangChain documentation with the integrated search.
• I used the GitHub search to find a similar question and didn't find it.
• I am sure that this is a bug in LangChain rather than my code.
• The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package).

Example Code

from langchain_core.prompts  import ChatPromptTemplate
from langchain_core.prompts.chat  import MessagesPlaceholder
from langchain_core.messages import AIMessage,HumanMessage,SystemMessage
from langchain_core.output_parsers import StrOutputParser
from langchain_ollama import ChatOllama

Error Message and Stack Trace (if applicable)

---

AttributeError Traceback (most recent call last)
Cell In[15], line 1
----> 1 from langchain_core.prompts import ChatPromptTemplate
2 from langchain_core.prompts.chat import MessagesPlaceholder
3 from langchain_core.messages import AIMessage,HumanMessage,SystemMessage

File d:\BTP Work\virtual_environment\Lib\site-packages\langchain_core\prompts_init_.py:28
1 """Prompt is the input to the model.
2
3 Prompt is often constructed
(...)
25
26 """ # noqa: E501
---> 28 from langchain_core.prompts.base import (
29 BasePromptTemplate,
30 aformat_document,
31 format_document,
32 )
33 from langchain_core.prompts.chat import (
34 AIMessagePromptTemplate,
35 BaseChatPromptTemplate,
(...)
40 SystemMessagePromptTemplate,
41 )
42 from langchain_core.prompts.few_shot import (
43 FewShotChatMessagePromptTemplate,
44 FewShotPromptTemplate,
45 )

File d:\BTP Work\virtual_environment\Lib\site-packages\langchain_core\prompts\base.py:26
24 from langchain_core.exceptions import ErrorCode, create_message
25 from langchain_core.load import dumpd
---> 26 from langchain_core.output_parsers.base import BaseOutputParser
27 from langchain_core.prompt_values import (
28 ChatPromptValueConcrete,
29 PromptValue,
30 StringPromptValue,
31 )
32 from langchain_core.runnables import RunnableConfig, RunnableSerializable

File d:\BTP Work\virtual_environment\Lib\site-packages\langchain_core\output_parsers_init_.py:16
1 """OutputParser classes parse the output of an LLM call.
2
3 Class hierarchy:
(...)
13 Serializable, Generation, PromptValue
14 """ # noqa: E501
---> 16 from langchain_core.output_parsers.base import (
17 BaseGenerationOutputParser,
18 BaseLLMOutputParser,
19 BaseOutputParser,
20 )
21 from langchain_core.output_parsers.json import JsonOutputParser, SimpleJsonOutputParser
22 from langchain_core.output_parsers.list import (
23 CommaSeparatedListOutputParser,
24 ListOutputParser,
25 MarkdownListOutputParser,
26 NumberedListOutputParser,
27 )

File d:\BTP Work\virtual_environment\Lib\site-packages\langchain_core\output_parsers\base.py:16
5 from typing import (
6 TYPE_CHECKING,
7 Any,
(...)
11 Union,
12 )
14 from typing_extensions import override
---> 16 from langchain_core.language_models import LanguageModelOutput
17 from langchain_core.messages import AnyMessage, BaseMessage
18 from langchain_core.outputs import ChatGeneration, Generation

File d:\BTP Work\virtual_environment\Lib\site-packages\langchain_core\language_models_init_.py:50
1 """Language Model is a type of model that can generate text or complete
2 text prompts.
3
(...)
39
40 """ # noqa: E501
42 from langchain_core.language_models.base import (
43 BaseLanguageModel,
44 LangSmithParams,
(...)
48 get_tokenizer,
49 )
---> 50 from langchain_core.language_models.chat_models import BaseChatModel, SimpleChatModel
51 from langchain_core.language_models.fake import FakeListLLM, FakeStreamingListLLM
52 from langchain_core.language_models.fake_chat_models import (
53 FakeListChatModel,
54 FakeMessagesListChatModel,
55 GenericFakeChatModel,
56 ParrotFakeChatModel,
57 )

File d:\BTP Work\virtual_environment\Lib\site-packages\langchain_core\language_models\chat_models.py:33
31 from langchain_core._api import deprecated
32 from langchain_core.caches import BaseCache
---> 33 from langchain_core.callbacks import (
34 AsyncCallbackManager,
35 AsyncCallbackManagerForLLMRun,
36 BaseCallbackManager,
37 CallbackManager,
38 CallbackManagerForLLMRun,
39 Callbacks,
40 )
41 from langchain_core.globals import get_llm_cache
42 from langchain_core.language_models.base import (
43 BaseLanguageModel,
44 LangSmithParams,
45 LanguageModelInput,
46 )

File d:\BTP Work\virtual_environment\Lib\site-packages\langchain_core\callbacks_init_.py:23
10 from langchain_core.callbacks.base import (
11 AsyncCallbackHandler,
12 BaseCallbackHandler,
(...)
20 ToolManagerMixin,
21 )
22 from langchain_core.callbacks.file import FileCallbackHandler
---> 23 from langchain_core.callbacks.manager import (
24 AsyncCallbackManager,
25 AsyncCallbackManagerForChainGroup,
26 AsyncCallbackManagerForChainRun,
27 AsyncCallbackManagerForLLMRun,
28 AsyncCallbackManagerForRetrieverRun,
29 AsyncCallbackManagerForToolRun,
30 AsyncParentRunManager,
31 AsyncRunManager,
32 BaseRunManager,
33 CallbackManager,
34 CallbackManagerForChainGroup,
35 CallbackManagerForChainRun,
36 CallbackManagerForLLMRun,
37 CallbackManagerForRetrieverRun,
38 CallbackManagerForToolRun,
39 ParentRunManager,
40 RunManager,
41 adispatch_custom_event,
42 dispatch_custom_event,
43 )
44 from langchain_core.callbacks.stdout import StdOutCallbackHandler
45 from langchain_core.callbacks.streaming_stdout import StreamingStdOutCallbackHandler

File d:\BTP Work\virtual_environment\Lib\site-packages\langchain_core\callbacks\manager.py:23
12 from typing import (
13 TYPE_CHECKING,
14 Any,
(...)
19 cast,
20 )
21 from uuid import UUID
---> 23 from langsmith.run_helpers import get_tracing_context
24 from tenacity import RetryCallState
26 from langchain_core.callbacks.base import (
27 BaseCallbackHandler,
28 BaseCallbackManager,
(...)
34 ToolManagerMixin,
35 )

File d:\BTP Work\virtual_environment\Lib\site-packages\langsmith\run_helpers.py:45
15 from typing import (
16 TYPE_CHECKING,
17 Any,
(...)
40 runtime_checkable,
41 )
43 from typing_extensions import Annotated, ParamSpec, TypeGuard, get_args, get_origin
---> 45 from langsmith import client as ls_client
46 from langsmith import run_trees, schemas, utils
47 from langsmith._internal import _aiter as aitertools

File d:\BTP Work\virtual_environment\Lib\site-packages\langsmith\client.py:62
60 import requests
61 from requests import adapters as requests_adapters
---> 62 from requests_toolbelt import ( # type: ignore[import-untyped]
63 multipart as rqtb_multipart,
64 )
65 from typing_extensions import TypeGuard, overload
66 from urllib3.poolmanager import PoolKey # type: ignore[attr-defined, import-untyped]

File d:\BTP Work\virtual_environment\Lib\site-packages\requests_toolbelt_init_.py:13
2 """
3 requests-toolbelt
4 =================
(...)
9 :license: Apache v2.0, see LICENSE for more details
10 """
12 from .adapters import SSLAdapter, SourceAddressAdapter
---> 13 from .auth.guess import GuessAuth
14 from .multipart import (
15 MultipartEncoder, MultipartEncoderMonitor, MultipartDecoder,
16 ImproperBodyPartContentException, NonMultipartContentTypeException
17 )
18 from .streaming_iterator import StreamingIterator

File d:\BTP Work\virtual_environment\Lib\site-packages\requests_toolbelt\auth\guess.py:6
3 from requests import auth
4 from requests import cookies
----> 6 from . import _digest_auth_compat as auth_compat, http_proxy_digest
9 class GuessAuth(auth.AuthBase):
10 """Guesses the auth type by the WWW-Authentication header."""

File d:\BTP Work\virtual_environment\Lib\site-packages\requests_toolbelt\auth_digest_auth_compat.py:17
13 def set(self, obj, value):
14 setattr(obj._thread_local, self.prop, value)
---> 17 class _HTTPDigestAuth(requests.auth.HTTPDigestAuth):
18 init = _ThreadingDescriptor('init', True)
19 last_nonce = _ThreadingDescriptor('last_nonce', '')

AttributeError: module 'requests' has no attribute 'auth'

Description

• I'm just trying to import the langchain_core.prompts library for basic prompting practice.
• Upon importing, it says the requests module has no attribute auth.

System Info

python -m langchain_core.sys_info yields :
System Information

OS: Windows
OS Version: 10.0.22631
Python Version: 3.11.9 (tags/v3.11.9:de54cf5, Apr 2 2024, 10:12:12) [MSC v.1938 64 bit (AMD64)]

Package Information

langchain_core: 0.3.29
langchain: 0.3.14
langchain_community: 0.3.14
langsmith: 0.2.10
langchain_experimental: 0.3.4
langchain_google_genai: 2.0.8
langchain_ollama: 0.2.2
langchain_openai: 0.3.0
langchain_text_splitters: 0.3.4
langgraph_sdk: 0.1.48

Optional packages not installed

langserve

Other Dependencies

aiohttp: 3.11.11
async-timeout: Installed. No version info available.
dataclasses-json: 0.6.7
filetype: 1.2.0
google-generativeai: 0.8.3
httpx: 0.27.2
httpx-sse: 0.4.0
jsonpatch: 1.33
langsmith-pyo3: Installed. No version info available.
numpy: 1.26.4
ollama: 0.4.5
openai: 1.59.3
orjson: 3.10.13
packaging: 24.2
pydantic: 2.10.4
pydantic-settings: 2.7.1
PyYAML: 6.0.2
requests: 2.32.3
requests-toolbelt: 1.0.0
SQLAlchemy: 2.0.36
tenacity: 9.0.0
tiktoken: 0.8.0
typing-extensions: 4.12.2
zstandard: Installed. No version info available.

additionally , pip freeze yielded :
aiohappyeyeballs==2.4.4
aiohttp==3.11.11
aiosignal==1.3.2
annotated-types==0.7.0
anyio==4.8.0
asttokens==3.0.0
attrs==24.3.0
cachetools==5.5.0
certifi==2024.12.14
charset-normalizer==3.4.1
colorama==0.4.6
comm==0.2.2
dataclasses-json==0.6.7
debugpy==1.8.11
decorator==5.1.1
distro==1.9.0
executing==2.1.0
filelock==3.16.1
filetype==1.2.0
frozenlist==1.5.0
fsspec==2024.12.0
google-ai-generativelanguage==0.6.10
google-api-core==2.24.0
google-api-python-client==2.157.0
google-auth==2.37.0
google-auth-httplib2==0.2.0
google-generativeai==0.8.3
googleapis-common-protos==1.66.0
greenlet==3.1.1
grpcio==1.69.0
grpcio-status==1.69.0
h11==0.14.0
httpcore==1.0.7
httplib2==0.22.0
httpx==0.27.2
httpx-sse==0.4.0
huggingface-hub==0.27.1
idna==3.10
ipykernel==6.29.5
ipython==8.31.0
jedi==0.19.2
Jinja2==3.1.5
jiter==0.8.2
joblib==1.4.2
jsonpatch==1.33
jsonpointer==3.0.0
jupyter_client==8.6.3
jupyter_core==5.7.2
langchain==0.3.14
langchain-community==0.3.14
langchain-core==0.3.29
langchain-experimental==0.3.4
langchain-google-genai==2.0.8
langchain-ollama==0.2.2
langchain-openai==0.3.0
langchain-text-splitters==0.3.4
langgraph==0.2.62
langgraph-checkpoint==2.0.9
langgraph-sdk==0.1.48
langsmith==0.2.10
MarkupSafe==3.0.2
marshmallow==3.24.1
matplotlib-inline==0.1.7
mpmath==1.3.0
msgpack==1.1.0
multidict==6.1.0
mypy-extensions==1.0.0
nest-asyncio==1.6.0
networkx==3.4.2
numpy==1.26.4
ollama==0.4.5
openai==1.59.3
orjson==3.10.13
packaging==24.2
pandas==2.2.3
parso==0.8.4
pillow==11.1.0
platformdirs==4.3.6
prompt_toolkit==3.0.48
propcache==0.2.1
proto-plus==1.25.0
protobuf==5.29.2
psutil==6.1.1
pure_eval==0.2.3
pyasn1==0.6.1
pyasn1_modules==0.4.1
pydantic==2.10.4
pydantic-settings==2.7.1
pydantic_core==2.27.2
Pygments==2.19.1
pyparsing==3.2.1
python-dateutil==2.9.0.post0
python-dotenv==1.0.1
pytz==2024.2
pywin32==308
PyYAML==6.0.2
pyzmq==26.2.0
regex==2024.11.6
requests==2.32.3
requests-toolbelt==1.0.0
rsa==4.9
safetensors==0.5.0
scikit-learn==1.6.0
scipy==1.15.0
sentence-transformers==3.3.1
six==1.17.0
sniffio==1.3.1
SQLAlchemy==2.0.36
stack-data==0.6.3
sympy==1.13.1
tenacity==9.0.0
threadpoolctl==3.5.0
tiktoken==0.8.0
tokenizers==0.21.0
torch==2.5.1
tornado==6.4.2
tqdm==4.67.1
traitlets==5.14.3
transformers==4.48.0
typing-inspect==0.9.0
typing_extensions==4.12.2
tzdata==2024.2
uritemplate==4.1.1
urllib3==2.3.0
wcwidth==0.2.13
yarl==1.18.3

[keenborder786]

Please update your langchain_core package. I would recommend to create a new environment and install all the langchain packages in that.