Clarify version.py assumption

1 files changed, 6 insertions, 5 deletions

diff --git a/bumper.yarn b/bumper.yarn
index a3d0400..d204a96 100644
--- a/bumper.yarn
+++ b/bumper.yarn
@@ -25,13 +25,14 @@ simpler. Here's a list:
 * The project is in Python. Again, this is just because that's what
   the author uses.
 
-* The code gets its version numbers from two variables in a Python
-  module that contains nothing else. The variables are `__version__`
-  and `__version_info__`. Bumper will overwrite the file with new
-  values when it runs, and commit its version to git.
+* The project contains exactly one file called `version.py`, and that
+  file only sets the variables `__version__` and `__version_info__`.
+  Bumper will overwrite that file so it sets the desired values, and
+  commits those changes to git.
 
 * `setup.py` is assumed to get the version from `__version__` from the
-  file Bumper writes, in some suitable way.
+  file Bumper writes, in some suitable way. Likewise the rest of the
+  project.
 
 * It's OK for Bumper to make several commits and a tag in the git
   repository.