Cellveyor turns the cells of a gradebook spreadsheet into one report per student. Point it at a sheet, pick the grade columns with a regular expression, and it prints a markdown report for each row. With --transfer-report it posts each report to the student's GitHub repository instead of just printing it.

Each row is one student. The key attribute column (normally the GitHub username) decides who a report belongs to. Rows with an empty key get no report.

• Python >=3.12, <3.14
• uv (see the uv documentation)
• A gradebook in XLSX format (for example, an exported Google Sheet)

Run the latest release without installing anything:

uvx cellveyor --help

Or install it so cellveyor stays on your PATH:

uv tool install cellveyor

To work on the code itself, clone the repository and run it with uv run, which uses the local checkout instead of the release:

git clone git@github.com:GatorEducator/cellveyor.git
cd cellveyor
uv run cellveyor --help

cellveyor \
  --spreadsheet-directory spreadsheets \
  --spreadsheet-file fake_spreadsheet.xlsx \
  --sheet-name Main \
  --key-attribute "Student GitHub" \
  --column-regexp "^(Summary Grade|Final Grade) .*$" \
  --feedback-regexp "Summary Grade 1 - Feedback"

Use --key-value for a single student:

cellveyor \
  --spreadsheet-directory spreadsheets \
  --spreadsheet-file fake_spreadsheet.xlsx \
  --sheet-name Main \
  --key-attribute "Student GitHub" \
  --column-regexp "^(Summary Grade|Final Grade) .*$" \
  --feedback-regexp "Summary Grade 1 - Feedback" \
  --key-value gkapfham

Exit code 0 means success, including runs that only print warnings (no columns matched, no rows left, bad feedback file skipped). Exit code 1 means something blocked the run: bad path, missing sheet or key column, bad regex, missing GitHub options, or a failed transfer.

Feedback files are small YAML files. Each key holds one block of feedback written as a folded scalar. The keys header and footer go at the top and bottom of every report; every other key is used only when a row's feedback column names it:

header: >
  Thanks for your work this week.
congratulations: >
  Strong work, keep it up.
needsimprovement: >
  Review the feedback and resubmit.
footer: >
  Come to office hours with questions.

A row's feedback column holds a comma-separated list of keys. Each key found in a feedback file becomes one bullet in that student's report. Keys that match nothing are skipped. A file may hold any subset of keys: a shared file might define only the footer while each assignment gets its own file with a header and feedback:

cellveyor ... \
  --feedback-file feedback/shared.yml \
  --feedback-file feedback/assignment-one.yml

Pass --feedback-file more than once to merge files; later files win on conflicts.

Transfers need a token, an organization, and a repository prefix. The token comes from the environment, never from a flag:

CELLVEYOR_GITHUB_TOKEN="$(gh auth token)" cellveyor \
  --spreadsheet-directory spreadsheets \
  --spreadsheet-file fake_spreadsheet.xlsx \
  --sheet-name Main \
  --key-attribute "Student GitHub" \
  --column-regexp "^(Summary Grade|Final Grade) .*$" \
  --feedback-regexp "Summary Grade 1 - Feedback" \
  --github-organization <your-organization> \
  --github-repository-prefix <your-prefix> \
  --transfer-report

CELLVEYOR_GITHUB_TOKEN is read first and GITHUB_TOKEN works as a fallback. A .env file works too (see .env.example, keep it at chmod 600, never commit it). Use --github-token-env to name a different variable. Each report goes to <organization>/<prefix>-<key-value> as a comment on pull request 1, the pull request GitHub Classroom opens per student repository.

Clone the repository, then:

uv run task all

That runs the linters, the type checkers, the tests, and the coverage check. uv run task lint runs the linters only and uv run task test runs the tests only.

GNU General Public License v3.0 (see LICENSE).