How to change format and color of some items in qlistwidget?

Question

d={"apple":12, "orange": 5}
for k in d:
self.qlistwiget.additem(k)
# how can change items of qlistwidget to yellow?

Answer 1

You can use the color attributes for aqlistwidgetitem
setBackgroundColor
setTextColor
using your example to set the text colour white and background black:
d={"apple":12, "orange": 5}
for k in d:
# create a new listwidgetitem
new_item = qListWidgetItem(k)
# create a q colour using hex (check docs for other options like rgb)
q_text_color = qColor("#FFFFFF")
q_back_color = qColor("#000000")
new_item.setTextColor(q_text_color)
new_item.setBackgroundColor(q_back_color)
self.qlistwiget.additem(new_item)

You could simplify this a little with:
d={"apple":12, "orange": 5}
for k in d:
# create a new listwidgetitem
new_item = qListWidgetItem(k)
# create a q colour using hex (check docs for other options like rgb and names like 'red')
new_item.setTextColor(qColor("#FFFFFF"))
new_item.setBackgroundColor(qColor("#000000") )
self.qlistwiget.additem(new_item)