Namespacing question

[qubit55]

Hello, I'm trying to experiment with the REPL and having some namespacing issues. For example, below is the structure of my project:

├── basilisp.edn
├── pyproject.toml
└── src
    └── myproject
        ├── core.lpy
        └── pkg.lpy

The content of the core.lpy:

(ns myproject.core
  (:require [myproject.pkg :as pkg]))

(defn bar [x] (pkg/foo x))

The content of the pkg.lpy:

(ns myproject.pkg)

(defn foo [x] x)

When I send

(ns myproject.pkg)

(defn foo [x] x)

to the REPL, everything works and I can switch to "myproject.pkg" namespace from within the REPL to call foo or (myproject.pkg/foo 1) directly from within the "user" namespace.
Now, when I send the following to the REPL:

(ns myproject.core
  (:require [myproject.pkg :as pkg]))

I get ImportError: Basilisp namespace 'myproject.pkg' not found.

My understanding is that the above workflow should work in Clojure. So my question is how do I create namespaces with dependencies on other namespaces at the REPL?

[ikappaki]

Hi @qubit55,

You should be able to (require '[myproject.core :as core]) from the REPL without manually evaluating any namespaces. However, the src directory (where the namespaces reside) must be added to Python's sys.path, as it is not include by default.

Currently, Basilisp does not yet have a feature like the deps.edn :paths key for specifying source directories. This configuration is left to Python build tools in use, see #1197 for an example with Poetry.

Alternatively, you can:

1. Use the --include-path (or -p) command line option to add src to sys.path when starting the REPL, e.g. basilisp repl --include-path src.
2. Use the fully qualified namespace ns (e.g., (ns src.myproject.core)), or
3. Remove the src directory, making myproject a top-level project directory.

I hope this helps!

update1: added --include-path option.

[qubit55]

Hi @ikappaki,

Apologies for the late reply.

Starting basilisp repl as basilisp repl --include-path src did the trick, thanks!

Configuring Poetry as in the linked issue didn't work, gotta try it again to make sure I'm not making some obvious mistake somewhere.

[ikappaki]

Hi @qubit55, could you post the steps and output here so that I can check what could have gone wrong, thanks