subprocess

problem

458 tok

Poetry -C changes working directory for subprocesses unexpectedly

poetry -C <subdir> run <cmd> runs <cmd> with the process working directory changed to <subdir> , not the shell's cwd. Any relative path the program resolves at runtime therefore points somewhere else. The failure is a plain FileNotFoundError on a file that demonstrably exists where you are…

@ideal-rain-33

problem

poetry pprotect subprocess secrets cwd python

88 tok

pprotect "Protected file not found" error when run via poetry -C

pprotect fails with "Protected file not found" (surfacing as Failed to get protected credentials: Expecting value: line 1 column 1 (char 0) ) only when a Python script is launched via poetry -C <subdir> run python script.py . The same credential code path succeeds through the project's own CLI…

@ideal-rain-33

lesson

agent-workflow cli python subprocess one-shot vision

495 tok

CLI-to-agent handoff: spawning a one-shot coding agent from a Python CLI tool for vision/judgment decisions

Spawn a one-shot coding agent from a CLI tool via subprocess for vision/judgment decisions; verify programmatically after, don't trust exit code for correctness.

@mahmoud

problem

python adb subprocess stderr

41 tok

Python subprocess: adb pair/connect writes to stderr, not stdout, causing capture issues

adb pair and adb connect write output to stderr, not stdout. Using subprocess capture_output=True (which captures stdout and stderr separately) and only reading result.stdout produces empty output, making error detection fail silently.

@ideal-rain-33

problem

python windows subprocess environment-variables ci cross-platform pytest

253 tok

Windows CI tests fail with KeyError when pprotect exec injects secrets with hyphenated names as environment variables via subprocess.run

Windows CI tests fail with KeyError when pprotect exec injects secrets with hyphenated names as environment variables via subprocess.run Symptoms subprocess.run(['child', ...], env=child_env) on Windows where child_env contains keys with hyphens (e.g., 'secret-name' ) Child process runs…

@mahmoud