AttributeError: C when importing WikipediaLoader / WebBaseLoader

[brandburner]

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.

Example Code

from langchain_community.document_loaders import WebBaseLoader
from langchain.text_splitter import CharacterTextSplitter
from langchain.vectorstores import Chroma
from langchain.embeddings.openai import OpenAIEmbeddings
from langchain.llms import OpenAI
from langchain.chains import RetrievalQA

# Load the Wikipedia page
loader = WebBaseLoader("https://en.wikipedia.org/wiki/New_York_City")
documents = loader.load()

# Split the text into chunks
text_splitter = CharacterTextSplitter(chunk_size=1000, chunk_overlap=0)
texts = text_splitter.split_documents(documents)

# Create embeddings
embeddings = OpenAIEmbeddings()

# Create a vector store
db = Chroma.from_documents(texts, embeddings, collection_name="wiki-nyc")

# Create a retriever
retriever = db.as_retriever()

# Create a QA chain
llm = OpenAI(temperature=0)
qa = RetrievalQA.from_chain_type(llm=llm, chain_type="stuff", retriever=retriever)

Error Message and Stack Trace (if applicable)

    from langchain_community.document_loaders import WikipediaLoader
  File "/home/runner/Langchain/.pythonlibs/lib/python3.10/site-packages/langchain_community/document_loaders/__init__.py", line 53, in <module>
    from langchain_community.document_loaders.blackboard import BlackboardLoader
  File "/home/runner/Langchain/.pythonlibs/lib/python3.10/site-packages/langchain_community/document_loaders/blackboard.py", line 10, in <module>
    from langchain_community.document_loaders.pdf import PyPDFLoader
  File "/home/runner/Langchain/.pythonlibs/lib/python3.10/site-packages/langchain_community/document_loaders/pdf.py", line 18, in <module>
    from langchain_community.document_loaders.parsers.pdf import (
  File "/home/runner/Langchain/.pythonlibs/lib/python3.10/site-packages/langchain_community/document_loaders/parsers/__init__.py", line 8, in <module>
    from langchain_community.document_loaders.parsers.language import LanguageParser
  File "/home/runner/Langchain/.pythonlibs/lib/python3.10/site-packages/langchain_community/document_loaders/parsers/language/__init__.py", line 1, in <module>
    from langchain_community.document_loaders.parsers.language.language_parser import (
  File "/home/runner/Langchain/.pythonlibs/lib/python3.10/site-packages/langchain_community/document_loaders/parsers/language/language_parser.py", line 39, in <module>
    "c": Language.C,
  File "/nix/store/xf54733x4chbawkh1qvy9i1i4mlscy1c-python3-3.10.11/lib/python3.10/enum.py", line 437, in __getattr__
    raise AttributeError(name) from None
AttributeError: C

Description

When trying a basic script to call the Wikipedia loader or WebBaseLoader (maybe any loader?) I get the error. Here's another example script that throws the same error.

from langchain_community.document_loaders import WikipediaLoader

docs = WikipediaLoader(query="Genesis of the Daleks", load_max_docs=2).load()
len(docs)

docs[0].metadata  # meta-information of the Document

docs[0].page_content[:400]  # a content of the Document

System Info

System Information

OS: Linux
OS Version: #13~22.04.1-Ubuntu SMP Wed Jan 24 23:39:40 UTC 2024
Python Version: 3.10.11 (main, Apr 4 2023, 22:10:32) [GCC 12.2.0]

Package Information

langchain_core: 0.1.26
langchain: 0.1.6
langchain_community: 0.0.24
langsmith: 0.1.7
langchain_openai: 0.0.5
langchainhub: 0.1.14

Packages not installed (Not Necessarily a Problem)

The following packages were not found:

langgraph
langserve

[keenborder786]

Can you please update your packages version, that should resolve your issue.

[brandburner]

Thank you!