def blob(tree, pathname):
    for mode, type, sha, pathname2 in ls_tree(tree):
        if pathname == pathname2:
            return sha
    return None
Handle the child added event for a QtDockItem.
dataset/ETHPy150Open devstructure/blueprint/blueprint/git.py/blob--crossover with--dataset/ETHPy150Open ContinuumIO/ashiba/enaml/enaml/qt/qt_dock_item.py/QtDockItem.child_removed