PyCQA/pyflakes

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• Pyflakes checks Python source files for errors: Real input produced the expected result: undefined name 'undefined_name'

  Source: A simple program which checks Python source files for errors.

  Input: import os x = undefined_name (stdin)

  Expected: reports undefined name

  Command: <guest-path> -m pyflakes

  Observed: undefined name 'undefined_name'

• Pyflakes detects various errors such as unused imports: Real input produced the expected result: 'os' imported but unused

  Source: Pyflakes analyzes programs and detects various errors.

  Input: import os x = undefined_name (stdin)

  Expected: reports unused import os

  Command: <guest-path> -m pyflakes

  Observed: 'os' imported but unused <stdin>:2:5: undefined name 'undefined_name'

Examples

• Check the checkout with the documented python -m pyflakes . invocation: command completed successfully with no output

  Source: README.rst: You can also invoke Pyflakes with python#.# -m pyflakes .

  Input: checkout directory (.)

  Expected: no findings, exit 0

  Command: <guest-path> -m pyflakes .

• Repository unit tests run via tox command: command completed successfully

  Source: tox.ini

  Input: unittest discover pyflakes

  Expected: all tests pass

  Command: <guest-path> -m unittest discover pyflakes

  Observed: .ss..s..........s....................s.......................................................................................................................................................sssssssss.........................s.................................................................s.................................s.s..s.......................................................s.........s............................................................................ss..s..........s. ---------------------------------------------------------------------- Ran 795 tests in 1.079s OK (skipped=28)

Local or hosted: local

Check Python source for errors with the pyflakes command-line tool (python -m pyflakes), reading source from stdin and from the checkout directory

cd <guest-path> && ls -la && id -u && python3 --version && cat README.md | head -c 6000
cd <guest-path> && git status 2>&1 | head -5; ls /inputs 2>&1; echo CDP=$CDP_URL; curl -s -m 10 -i $CDP_URL/json/version | head -20
cd <guest-path> && cat README.rst && echo ---- && cat tox.ini requirements-dev.txt setup.cfg && ls -la .coldpass bin
mkdir -p <guest-path> && cd <guest-path> && python3 -m venv <guest-path> 2>&1 | tail -3; ls <guest-path> 2>&1 | head
<guest-path> install --upgrade pyflakes 2>&1 | tail -5; <guest-path> -m pip show pyflakes 2>&1 | head -3
cd <guest-path> && <guest-path> -c "import pyflakes,sys;print(pyflakes.__file__)" ; <guest-path> -m pyflakes --version; echo rc=$?; <guest-path> -m pyflakes pyflakes/checker.py; echo rc=$?; printf 'import os\nx = undefined_name\n' > <guest-path>; <guest-path> -m pyflakes <guest-path>; echo rc=$?
cd <guest-path> && <guest-path> -m pyflakes . ; echo rc=$?; <guest-path> -m unittest discover pyflakes 2>&1 | tail -5; echo rc=$?
cd <guest-path> && cat > probe.json <<'EOF'
{"kind":"cli","argv":["<guest-path>","-m","pyflakes","<guest-path>"],"cwd":"<guest-path>","expected_returncode":1,"expected_text":"undefined name 'undefined_name'"}
EOF
cat > claims.json <<'EOF'
[
{"kind":"claim","claim":"Pyflakes checks Python source files for errors","source":"A simple program which checks Python source files for errors.","input":"<guest-path>","expected":"reports undefined name","probe_kind":"cli","argv":["<guest-path>","-m","pyflakes","<guest-path>"],"expected_returncode":1,"expected_text":"undefined name 'undefined_name'","cwd":"<guest-path>"},
{"kind":"claim","claim":"Pyflakes detects unused imports and undefined names","source":"Pyflakes analyzes programs and detects various errors.","input":"<guest-path>","expected":"reports unused import os","probe_kind":"cli","argv":["<guest-path>","-m","pyflakes","<guest-path>"],"expected_returncode":1,"expected_text":"'os' imported but unused","cwd":"<guest-path>"},
{"kind":"claim","claim":"python -m pyflakes . is a documented invocation","source":"You can also invoke Pyflakes with ``python#.# -m pyflakes .`` if you want","input":"checkout directory","expected":"no findings, exit 0","probe_kind":"cli","argv":["<guest-path>","-m","pyflakes","."],"expected_text":"","cwd":"<guest-path>"}
]
EOF
python3 -I -m json.tool probe.json >/dev/null && python3 -I -m json.tool claims.json >/dev/null && echo ok
cd <guest-path> && cat > examples.json <<'EOF'
[
{"kind":"example","claim":"Repository unit tests run via tox command","source":"tox.ini","input":"unittest discover pyflakes","expected":"all tests pass","argv":["<guest-path>","-m","unittest","discover","pyflakes"],"cwd":"<guest-path>","expected_text":"OK (skipped=28)"}
]
EOF
cat > cycles.json <<'EOF'
{"detected":false,"reason":"Entry points inspected (bin/pyflakes, pyflakes/__main__.py, pyflakes/api.py, README.rst, tox.ini): pyflakes is a one-shot linter run per invocation; no cron, scheduler, loop, webhook, --once or --now option exists.","checks":[]}
EOF
python3 -I -m json.tool examples.json >/dev/null && python3 -I -m json.tool cycles.json >/dev/null && echo ok; ls <guest-path> <guest-path>
cd <guest-path> && ls <guest-path> && <env-var>=<guest-path> python3 -I <guest-path> --validate --replay 2>&1 | tail -c 5000
cd <guest-path> && grep -n "source_file\|README" check.py | head -40; grep -n "agent-written" check.py | head
cd <guest-path> && sed -n 1275,1292p check.py; sed -n 900,912p check.py; grep -n "def is_agent\|agent_written\|def _agent" check.py | head
cd <guest-path> && sed -n 357,372p check.py
cd <guest-path> && grep -n "stdin\|'-'" pyflakes/api.py pyflakes/__main__.py | head; grep -n "def main" -A12 pyflakes/api.py | head -30
cd <guest-path> && cat > probe.json <<'EOF'
{"kind":"cli","argv":["<guest-path>","-m","pyflakes"],"cwd":"<guest-path>","stdin":"import os\nx = undefined_name\n","expected_returncode":1,"expected_text":"undefined name 'undefined_name'"}
EOF
cat > claims.json <<'EOF'
[
{"kind":"claim","claim":"Pyflakes checks Python source files for errors","source_file":"README.rst","source":"A simple program which checks Python source files for errors.","input":"import os\nx = undefined_name\n (stdin)","expected":"reports undefined name","probe_kind":"cli","argv":["<guest-path>","-m","pyflakes"],"stdin":"import os\nx = undefined_name\n","expected_returncode":1,"expected_text":"undefined name 'undefined_name'","cwd":"<guest-path>"},
{"kind":"claim","claim":"Pyflakes detects various errors such as unused imports","source_file":"README.rst","source":"Pyflakes analyzes programs and detects various errors.","input":"import os\nx = undefined_name\n (stdin)","expected":"reports unused import os","probe_kind":"cli","argv":["<guest-path>","-m","pyflakes"],"stdin":"import os\nx = undefined_name\n","expected_returncode":1,"expected_text":"'os' imported but unused","cwd":"<guest-path>"}
]
EOF
cat > examples.json <<'EOF'
[
{"kind":"example","claim":"Check the checkout with the documented python -m pyflakes . invocation","source":"README.rst: You can also invoke Pyflakes with python#.# -m pyflakes .","input":"checkout directory (.)","expected":"no findings, exit 0","argv":["<guest-path>","-m","pyflakes","."],"cwd":"<guest-path>"},
{"kind":"example","claim":"Repository unit tests run via tox command","source":"tox.ini","input":"unittest discover pyflakes","expected":"all tests pass","argv":["<guest-path>","-m","unittest","discover","pyflakes"],"cwd":"<guest-path>","expected_text":"OK (skipped=28)"}
]
EOF
python3 -I -m json.tool probe.json >/dev/null && python3 -I -m json.tool claims.json >/dev/null && python3 -I -m json.tool examples.json >/dev/null && echo ok
cd <guest-path> && <env-var>=<guest-path> python3 -I <guest-path> --validate --replay 2>&1 | tail -c 6000
cd <guest-path> && cat > report.json <<'EOF'
{"outcome":"working","fault_owner":null,"operation":"Check Python source for errors with the pyflakes command-line tool (python -m pyflakes), reading source from stdin and from the checkout directory","operation_scope":"Linux guest, Python 3.12.3 venv at <guest-path>, pyflakes run from the checked-out source snapshot (workspace is not a git repo; pinned commit f0a8b98156ba1645a45bc7d77dcfe79dbbf11f10 not verified because no git metadata was available; source was used as provided)","steps":["python3 -m venv <guest-path>","<guest-path> install --upgrade pyflakes (README Installation)","cd <guest-path> && <guest-path> -m pyflakes . (README Useful tips; exit 0, no findings)","printf 'import os\\nx = undefined_name\\n' | <guest-path> -m pyflakes (reports unused import os and undefined name; exit 1)","<guest-path> -m unittest discover pyflakes (tox.ini test command; 795 tests, OK, skipped=28)"],"deviations":["The README says pip install --upgrade pyflakes, which installed PyPI pyflakes 4.0.3 into the venv; the probes ran the checkout's own pyflakes source because the working directory comes first on sys.path (confirmed by printing pyflakes.__file__ from the workspace).","The workspace has no .git directory, so the git init/fetch/reset pin step could not be applied and the pinned commit was not verified.","The checker path /inputs/coldpass-preflight.py does not exist in this guest; used <guest-path> instead.","First probe used a sample .py file outside the workspace, which the checker treats as agent-written code; replaced with the documented stdin invocation (pyflakes reads stdin when no path is given, pyflakes/api.py)."],"stuck_step":null,"main_blocker":null,"plain_failure":null,"suggested_fix":"None for the product. Optional: provide the git metadata for the pinned commit so the source revision can be verified."}
EOF
python3 -I -m json.tool report.json >/dev/null && echo ok && cd <guest-path> && <env-var>=<guest-path> python3 -I <guest-path> --validate --replay 2>&1 | head -c 300