How to install reflex in editable mode?

[larsblumberg]

Earlier versions (v0.6.x) allowed to install reflex in editable mode via

poetry add -vv --editable ./reflex

with reflex checked out in a corresponding local directory ./reflex. That helped me tremendously learning about reflex internals and even patch a few methods like BaseState._process_event to hook into the event processing. It basically allowed me to inject an event middleware, pretty much like FastAPI or Flask allow for a request middleware.

Now when using more recent v0.7.x versions installing reflex in editable mode seems to run forever. It's stuck in step

[build:build] Building editable...

with 1 CPU core going into full exhaustion for a long period of time. I never had the patience so far to wait until it might actually succeed.

Is there a proven way to nowadays install reflex in editable (development) mode so that I can observe and modify its source code? Eventually being able to learn and debug reflex internals will also help me to make some contributions to reflex itself.

[larsblumberg]

Found a workaround for installing reflex in editable mode: I Install reflex as a regular pypi dependency (via poetry). Since I am running my app in a docker container, I simply mount the ./reflex/reflex directory of the locally cloned reflex repo (cloned at ./reflex) into /usr/local/lib/python3.11/site-packages/reflex. And together with watchexec I have the reflex app restart on any source changes to reflex module.

Relevant parts in compose.yaml:

services:
  app:
    command: |
      watchexec
        --restart
        -w /usr/local/lib/python3.11/site-packages/reflex
        reflex run --loglevel debug
    volumes:
      - ./app:/app
      - ./bin/watchexec_2.1.2:/usr/local/bin/watchexec
      - ./reflex/reflex:/usr/local/lib/python3.11/site-packages/reflex

With ./reflex being the clone (a git submodule) of the corresponding reflex version.

[adhami3310]

should be fixed with #5354 i think it was going on an infinite loop trying to find pyi hashes file

[larsblumberg]

Thank you!