Interactive "for each item in ... do ..." in QGIS?

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How does one interactively run a basic looping batch construct in QGIS?

for each {feature} in {features}: do {thing} with/to {feature} save/export/display {result}Where:

  • {features} could be a polygon shapefile, a table, a selected record set, ...
  • {feature} an individual record from {features}
  • {thing} is any Processing tool (or menu action?)
In ArcGIS cursors, batch processing, and model iterators can be brought to bear for looping, though only the latter are interactive. What are the QGIS equivalents?

Most of the topics and tutorials I've looked at so far involve shell scripts or straight up python code -- meaning little to no interactivity and dynamism. Is this really the best/only way, at present? Essentially, I'm re-asking Interactive "For each .... Do" loop? and hoping for a QGIS specific answer.



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