Problem

When OpenOSINT is installed via uv tool install, it runs inside an isolated virtual environment. Tools like holehe or phoneinfoga can be installed into that same environment (e.g. uv pip install holehe --python <venv-python>), but shutil.which() only searches the system PATH — not the venv's bin/ directory. This causes a spurious ToolNotFoundError even when the binary is present and working.

Symptom:

Email scan failed: 'holehe' is not installed or not in PATH. Install it with: pip install holehe

Fix

Prepend the directory of the running Python executable (sys.executable) to the search path before calling shutil.which(). This ensures any binary co-installed in the same venv or uv-tool environment is always resolved, regardless of the user's system PATH.

venv_bin = str(Path(sys.executable).parent)
search_path = os.pathsep.join([venv_bin, os.environ.get("PATH", "")])
binary = shutil.which(binary, path=search_path) or binary

Impact

• No behaviour change when binaries are already on the system PATH.
• Fixes discovery for binaries installed inside the venv (common with uv tool install).
• Affects all tool wrappers that use run_subprocess() (holehe, phoneinfoga, sherlock, sublist3r, etc.).

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