def evalAdd(ctx, u):
    src, dst = u.graph

    srcg = _graphOrDefault(ctx, src)
    dstg = _graphOrDefault(ctx, dst)

    if srcg.identifier == dstg.identifier:
        return

    dstg += srcg
set non-default string formatting for a column
dataset/ETHPy150Open RDFLib/rdflib/rdflib/plugins/sparql/update.py/evalAdd--crossover with--dataset/ETHPy150Open cmorgan/trading-with-python/lib/qtpandas.py/DataFrameWidget.setFormat