Stylesheet does not work with special characters pyqt

Question

Could not parse stylesheet of object 0x2d956381ba0

   def change_btn_image(self, btn):
    imagem = self.atv_imagens_bd[self.atividades.get_contador()]
    nome_imagem = imagem[:-4]
    print(nome_imagem)

    btn.setStyleSheet(f"border-image: url(src/main/resources/base/{imagem});")
    return nome_imagem

When the name of the pushButton background image in the stylesheet has a special "ÃÉ" type character, this error occurs. `btn.setStyleSheet(f"border-image: url(src/main/resources/base/PÃO.png);")` — WesleyRodrigues, Mar 21 '21 at 00:06
Use quotes around the path: `btn.setStyleSheet(f"border-image: url('src/main/resources/base/{imagem}');")` — musicamante, Mar 21 '21 at 00:47
@musicamante if you can answer the question so I can put your answer as correct, because it worked: D — WesleyRodrigues, Mar 22 '21 at 15:40

score 1 · Accepted Answer · answered Mar 22 '21 at 15:55

As explained in a slightly related answer, HTML (and, therefore, stylesheet) parsing capabilities of Qt are a bit limited if compared to web browser parsers.

While those syntax are somehow pretty "liberal", one shouldn't push the boundaries of their freedom too much: it's always good practice to use quotes for string based values (besides keywords, obviously), most importantly for URLs.

In this case, the problem is the utf character, which creates a problem as the parser is unable to correctly identify where the url ends.

Just add quotes around the url path:

btn.setStyleSheet(f"border-image: url('src/main/resources/base/{imagem}');")

Stylesheet does not work with special characters pyqt

1 Answers1