To get your environment up and running properly, you'll need a slightly different set of commands that are windows specific:
uv venv
.venv\Scripts\activate
uv pip install -e ".[dev]"
This will install the package in editable mode, and install the development dependencies.
- open
.venv\Lib\site-packages\pyreadline\py3k_compat.py
- change
return isinstance(x, collections.Callable)
to
from collections.abc import Callable
return isinstance(x, Callable)
For developing FastMCP
- ensure
- change directories to your FastMCP Server location so you can install it in your .venv
- run
.venv\Scripts\activate
to activate your virtual environment - Then run a series of commands to uninstall the old version and install the new
# First uninstall
uv pip uninstall fastmcp
# Clean any build artifacts in your fastmcp directory
cd C:\path\to\fastmcp
del /s /q *.egg-info
# Then reinstall in your weather project
cd C:\path\to\new\fastmcp_server
uv pip install --no-cache-dir -e C:\Users\justj\PycharmProjects\fastmcp
# Check that it installed properly and has the correct git hash
pip show fastmcp
MCP comes with a node.js application called Inspector that can be used to inspect the FastMCP server. To run the inspector, you'll need to install node.js and npm. Then you can run the following commands:
fastmcp dev server.py
This will launch a web app on http://localhost:5173/ that you can use to inspect the FastMCP server.
- Add your fork as a new remote to your local repository
git remote add fork git@github.com:YOUR-USERNAME/REPOSITORY-NAME.git
- This will add your repo, short named 'fork', as a remote to your local repository
- Verify that it was added correctly by running
git remote -v
- Commit your changes
- Push your changes to your fork
git push fork <branch>
- Create your pull request on GitHub