setting up pyproject and runtime redirections apropriately

rerun_py/pyproject.toml

@@ -96,4 +96,8 @@ required-imports = ["from __future__ import annotations"]
 # See https://github.com/rerun-io/rerun/pull/1085 for more details
 include = ["rerun_sdk.pth", "rerun_sdk/rerun_demo/colmap_fiat.rrd"]
 locked = true
-python-packages = ["rerun_sdk/rerun", "rerun_sdk/rerun_demo"]
+python-packages = [
+  "rerun_sdk/rerun",
+  "rerun_sdk/rerun2",
+  "rerun_sdk/rerun_demo",
+]

rerun_py/rerun2/__init__.py

@@ -0,0 +1,26 @@
+"""
+A shim necessary to make maturin dev builds work properly.
+
+Our maturin builds stick our package inside of a "rerun_sdk" folder
+to avoid conflicting with the non-rerun "rerun" package. In released
+builds, we include a rerun_sdk.pth file that makes things work properly,
+but that doesn't work in dev builds where maturin generates its own
+.pth file that points 1 level too high.
+
+When we encounter this file on import, we instead redirect to the
+real rerun module by adding it to the path and then, and then
+replacing our own module content with it.
+"""
+from __future__ import annotations
+
+import pathlib
+import sys
+
+real_path = pathlib.Path(__file__).parent.parent.joinpath("rerun_sdk").resolve()
+
+print(f"DEV ENVIRONMENT DETECTED! Re-importing rerun2 from: {real_path}", file=sys.stderr)
+
+sys.path.insert(0, str(real_path))
+
+del sys.modules["rerun2"]
+sys.modules["rerun2"] = __import__("rerun2")