Workaround for MacOS / poetry "Cannot install torch" issue

[tb]

I was not able to start the project on MacOS

➜  langchain-crash-course git:(main) ✗ sw_vers
ProductName:		macOS
ProductVersion:		14.6.1
BuildVersion:		23G93

Error I get:

➜  langchain-crash-course git:(main) ✗ poetry install --no-root
Installing dependencies from lock file

Package operations: 12 installs, 1 update, 0 removals

  - Updating torch (2.2.2 -> 2.3.1): Failed

  RuntimeError

  Unable to find installation candidates for torch (2.3.1)

  at ~/.pyenv/versions/3.11.6/lib/python3.11/site-packages/poetry/installation/chooser.py:74 in choose_for
       70│
       71│             links.append(link)
       72│
       73│         if not links:
    →  74│             raise RuntimeError(f"Unable to find installation candidates for {package}")
       75│
       76│         # Get the best link
       77│         chosen = max(links, key=lambda link: self._sort_key(package, link))
       78│

Cannot install torch.

I tried https://stackoverflow.com/a/76359919/478584 but it did not help.

Workaround:

python -m venv venv
source venv/bin/activate
pip install python-dotenv langchain langchain-community langchain-openai langchain-anthropic langchain-google-genai langchain-google-firestore firestore chromadb tiktoken sentence-transformers bs4 firecrawl-py langchainhub wikipedia tavily-python

NOTE: pip installed torch-2.2.2-cp311-none-macosx_10_9_x86_64.whl

[anupsd]

I was able to fix it properly by running:
poetry add https://files.pythonhosted.org/packages/3f/14/e105b8ef6d324e789c1589e95cb0ab63f3e07c2216d68b1178b7c21b7d2a/torch-2.2.2-cp311-none-macosx_10_9_x86_64.whl

using the following pyproject.toml file:
`
[tool.poetry]
name = "langchain-crash-course"
version = "0.1.0"
description = "Everything you need to know to get started with LangChain"
authors = ["anup"]

[tool.poetry.dependencies]
python = ">=3.10.0,<3.12"
langchain-openai = "^0.2.0"
python-dotenv = "^1.0.1"
langchain = "^0.3.0"
langchain-community = "^0.3.0"
langchain-anthropic = "^0.2.1"
langchain-google-genai = "^2.0.0"
langchain-google-firestore = "^0.3.0"
firestore = "^0.0.8"
chromadb = "^0.5.0"
tiktoken = "^0.7.0"
sentence-transformers = "^3.0.0"
bs4 = "^0.0.2"
firecrawl-py = "^1.2.3"
langchainhub = "^0.1.18"
wikipedia = "^1.4.0"
tavily-python = "^0.5.0"
pkgconfig="1.5.5"
torch = {url = "https://files.pythonhosted.org/packages/3f/14/e105b8ef6d324e789c1589e95cb0ab63f3e07c2216d68b1178b7c21b7d2a/torch-2.2.2-cp311-none-macosx_10_9_x86_64.whl"}

[tool.pyright]

https://github.com/microsoft/pyright/blob/main/docs/configuration.md

useLibraryCodeForTypes = true
exclude = [".cache"]

[tool.ruff]

https://beta.ruff.rs/docs/configuration/

select = ['E', 'W', 'F', 'I', 'B', 'C4', 'ARG', 'SIM']
ignore = ['W291', 'W292', 'W293']

[build-system]
requires = ["poetry-core=1.0.0"]
build-backend = "poetry.core.masonry.api"

`