touched up version referencing

Author: tclose

README.md

@@ -17,8 +17,8 @@ All tasks will be inserted into the `pydra.tasks.<yourtaskpackagename>` namespac
    'v' to indicate the version of the tool the Pydra interfaces will be designed for,
    e.g. FSL v6.0.2 could be `pydra/tasks/fsl/v6` or `pydra/tasks/fsl/v6_0` depending on
    how stable the CLI of the tool is between minor versions.
-1. Edit `pydra/tasks/<package-name>/latest`, change the line `from .v1 import *` to refer
-   to the `v<package-version>` module, e.g. `from .v6 import *`
+1. Edit `pydra/tasks/<package-name>/latest.py` to update references to `v1` to the
+   tool target version
 1. Add tasks to the `pydra/tasks/<package-name>/v<package-version>` folder.
 1. You may want to initialize a [Sphinx] docs directory.
 1. Review the workflow in `.github/workflows/pythonpackage.yml`. Testing editable installations

pydra/tasks/CHANGEME/__init__.py

@@ -8,4 +8,7 @@
 try:
     from ._version import __version__
 except ImportError:
-    pass
+    raise RuntimeError(
+        "Pydra package 'CHANGEME' has not been installed, please use "
+        "`pip install -e <path-to-repo>` to install development version"
+    )

pydra/tasks/CHANGEME/latest.py

@@ -1 +1,3 @@
+PACKAGE_VERSION = "v1"
+
 from .v1 import *  # noqa