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PythonRunnerResult

Namespace: UTILSLIB  ·  Library: Utilities Library

#include <utils/python_runner.h>

struct UTILSLIB::PythonRunnerResult

Result of a Python script execution.

Script execution result container.

src/examples/ex_utils/main.cpp
PythonRunner python; // "python3" from PATH; a venv is configured via PythonRunnerConfig
QStringList progress;
python.setProgressCallback([&](float pct, const QString& msg) { progress << QString("%1 %2").arg(pct).arg(msg); });
const PythonRunnerResult run = python.runCode("import sys\nprint('[progress] 50% half')\nprint(sum(map(int, sys.argv[1:])))", {"2", "3"});

Example​

Used in examples​

ex_utils​

Utilities library: buffers, observers, logging, file formats, montages, layouts and reports.

src/examples/ex_utils/main.cpp, line 312
PythonRunner python; // "python3" from PATH; a venv is configured via PythonRunnerConfig
QStringList progress;
python.setProgressCallback([&](float pct, const QString& msg) { progress << QString("%1 %2").arg(pct).arg(msg); });
const PythonRunnerResult run = python.runCode("import sys\nprint('[progress] 50% half')\nprint(sum(map(int, sys.argv[1:])))", {"2", "3"});
PythonTestHelper helper;                                                    // oracle access for tests
const MatrixXd fromNumpy = helper.evalMatrix("print('1 2'); print('3 4')"); // one line per row
if (python.isPythonAvailable()) {
    ok &= expect(run.success && run.stdOut.trimmed().endsWith("5") && progress == QStringList({"50 half"}) && fromNumpy == (Matrix2d() << 1, 2, 3, 4).finished(),
                 "PythonRunner passes arguments and parses [progress] lines; PythonTestHelper reads a matrix");
} else {
    qInfo().noquote() << "  skip  PythonRunner (python3 not found)";

Authors of this file​