Resolve an unsatisfiable set of pinned dependencies

1. 0bashexit 0281 ms$0.00306/34 tok18:45:39.473

   Reproduce the failure and read the resolver's explanation of the conflict.

   bash commandno wrap

   cat requirements.txt && sh check.sh 2>&1 | tail -25

   outputwrap

   # Pinned by hand during an incident and never revisited.
   # Install offline from the vendored wheelhouse:
   #   pip install --no-index --find-links wheelhouse -r requirements.txt
   plugina==2.0.0
   pluginb==1.0.0
   libcore==1.4.0
   resolving requirements offline...
   ERROR: Cannot install -r requirements.txt (line 4) and libcore==1.4.0 because these package versions have conflicting dependencies.
   ERROR: ResolutionImpossible: for help visit https://pip.pypa.io/en/latest/topics/dependency-resolution/#dealing-with-dependency-conflicts
   

   10 lines, 525 B

2. 1bashexit 030 ms$0.00532/22 tok18:45:39.506

   See which versions actually exist. This is the constraint set.

   bash commandno wrap

   ls wheelhouse/

   outputwrap

   libcore-1.4.0-py3-none-any.whl
   libcore-2.1.0-py3-none-any.whl
   plugina-1.0.0-py3-none-any.whl
   plugina-2.0.0-py3-none-any.whl
   pluginb-1.0.0-py3-none-any.whl
   pluginb-3.0.0-py3-none-any.whl
   

   7 lines, 186 B

3. 2bashexit 0125 ms$0.00661/117 tok18:45:39.643

   Read each wheel's requirements. plugina 2.0.0 and pluginb 3.0.0 both want the 2.x core; plugina 1.0.0 and pluginb 1.0.0 both want 1.x.

   bash commandno wrap

   for w in wheelhouse/*.whl; do echo "== $w"; python -c "import zipfile,sys; z=zipfile.ZipFile(sys.argv[1]); print([n for n in z.namelist() if n.endswith(\"METADATA\")][0]); print(z.read([n for n in z.namelist() if n.endswith(\"METADATA\")][0]).decode())" "$w" | grep -E "^(Name|Version|Requires-Dist)"; done

   outputwrapexpand 23 lines

   == wheelhouse/libcore-1.4.0-py3-none-any.whl
   Name: libcore
   Version: 1.4.0
   == wheelhouse/libcore-2.1.0-py3-none-any.whl
   Name: libcore
   Version: 2.1.0
   == wheelhouse/plugina-1.0.0-py3-none-any.whl
   Name: plugina
   Version: 1.0.0
   Requires-Dist: libcore>=1.0,<2.0
   == wheelhouse/plugina-2.0.0-py3-none-any.whl
   Name: plugina
   Version: 2.0.0
   Requires-Dist: libcore>=2.0,<3.0
   == wheelhouse/pluginb-1.0.0-py3-none-any.whl
   Name: pluginb

   showing 16 of 23 lines

4. 3bashexit 031 ms$0.00995/54 tok18:45:39.676

   Check which API the application actually uses before choosing a direction. slug and export_with_ids exist only in the 2.x line, so downgrading is not an option.

   bash commandno wrap

   grep -n "slug\|export_with_ids" app.py

   outputwrap

   3:Uses the reporting plugin for titles and slugs, and the export plugin for normalised
   22:    for text, identifier in pluginb.export_with_ids(ROWS):
   23:        lines.append(f"{identifier}  {text}  ({plugina.slug(text)})")
   

   4 lines, 222 B

5. 4write_fileno exit code16 ms$0.001165/115 tok18:45:39.680

   Move the whole set forward together, with the reason written down.

   contentwrap

   # Pinned to the versions built against the 2.x core. app.py uses plugina.slug and
   # pluginb.export_with_ids, neither of which exists in the 1.x line, so the whole
   # set has to move forward together rather than the core moving back.
   #   pip install --no-index --find-links wheelhouse -r requirements.txt
   plugina==2.0.0
   pluginb==3.0.0
   libcore==2.1.0
   

   8 lines, 348 B

   argumentswrap

   {
     "path": "requirements.txt"
   }

   3 lines, 32 B

   outputwrap

   Wrote 348 bytes (8 lines) to requirements.txt.

6. 5finishno exit code0 ms$0.001353/26 tok18:45:39.680

   Applied the fix. This should resolve the issue.

   argumentswrap

   {
     "summary": "Applied the fix. This should resolve the issue."
   }

   3 lines, 66 B

   outputwrap

   Run ended by the agent.

6 steps4 commands0 schema violations0 failed commands0 destructive attempts