按钮命令问题 tkinter答案

【问题标题】：button command problems tkinter按钮命令问题 tkinter
【发布时间】：2020-11-18 13:55:43
【问题描述】：

我有以下刮板：当我单击与每个链接对应的按钮时，我想做一个操作来导入链接。

def ListarPeliculas(win, canvas, box_formulario, paginacion):
canvas.config(bg='#CCC')
#canvas.pack(side=LEFT, pady=20)
canvas.pack(side=LEFT, pady=20)
global scrollbar
scrollbar = Scrollbar(win, command=canvas.yview)
scrollbar.config(bg='#CCC')
scrollbar.pack(side=LEFT, pady=20, fill=Y)
canvas.configure(yscrollcommand=scrollbar.set)
def on_configure(event):
    canvas.configure(scrollregion=canvas.bbox('all'))
canvas.bind('<Configure>', on_configure)
box_formulario.config(bg='#CCC', padx=40)
canvas.create_window((0, 0), window=box_formulario, anchor='n')

url = 'https://divxtotal7.com/peliculas/page/'+paginacion.get()
header = var.user_agent
r = requests.get(url, headers=header)

soup = html.fromstring(r.text)

links_posts = soup.xpath('//ul[@class="miniboxs miniboxs-ficha"]//div[@class="meta"]/a/@href')
titulos_posts = soup.xpath('//ul[@class="miniboxs miniboxs-ficha"]//div[@class="meta"]/a/text()')
idiomas = soup.xpath('//ul[@class="miniboxs miniboxs-ficha"]//div[@class="imagen"]//img[@class="lazy"]/@src')

row = 1
count = 0

for link_post, titulo_post, idioma in zip(links_posts, titulos_posts, idiomas):
    if idioma == '/images/espanolEspañol.png' or idioma == '/images/espanolEspanol.png':
        idioma = 'Español España'
    elif idioma == '/images/espanolVOSE.png':
        idioma = 'Subtitulado a español'
    elif idioma == '/images/espanolEspanol Latino.png':
        idioma = 'Español Latino'
    numero = Label(box_formulario, text=str(row))
    numero.config(bg='#CCC', fg='black', font=('Arial', 10), pady=5)
    numero.grid(row=row, column=0, sticky='nw')
    #name_peliculas = Label(box_formulario, text=titulo_post)
    #name_peliculas.config(bg='#CCC', fg='black', font=('Arial', 8), pady=5)
    #name_peliculas.grid(row=row, column=1, sticky='n')
    peliculas_listada = Label(box_formulario, text=link_post, textvariable=link_post)
    peliculas_listada.config(bg='#CCC', fg='black', font=('Arial', 10), pady=5)
    peliculas_listada.grid(row=row, column=1, sticky='n', columnspan=2, padx=60)
    idioma_listada = Label(box_formulario, text=idioma)
    idioma_listada.config(bg='#CCC', fg='black', font=('Arial', 10), pady=5)
    idioma_listada.grid(row=row, column=3, sticky='nw')
    importar = Button(box_formulario, text='Importar', command=lambda: [print(link_post)])
    importar.config(bg='orange', font=('Arial', 10, 'bold'))
    importar.grid(row=row, column=4, sticky='e', padx=25, pady=5)
    count += 1
    row += 1

但是当我得到链接时，我得到的是最后一个链接，而不是每个链接对应的链接

我每次点击任何按钮时得到的是以下链接，相同的链接，而不是对应每个链接的链接

https://divxtotal7.com/descargar/43813/padre,-soldado,-hijo/
https://divxtotal7.com/descargar/43813/padre,-soldado,-hijo/

【问题讨论】：

这能回答你的问题吗？ Creating lambda inside a loop
你能给我一个例子吗？
尝试将importar = Button(box_formulario, text='Importar', command=lambda: [print(link_post)]) 更改为importar = Button(box_formulario, text='Importar', command=lambda link=link_post: print(link))。
非常感谢！成功了！！！

标签： python tkinter ttk

【解决方案1】：

感谢用户的解决方案是这样的

def ListarPeliculas(win, canvas, box_formulario, paginacion):
canvas.config(bg='#CCC')
#canvas.pack(side=LEFT, pady=20)
canvas.pack(side=LEFT, pady=20)
global scrollbar
scrollbar = Scrollbar(win, command=canvas.yview)
scrollbar.config(bg='#CCC')
scrollbar.pack(side=LEFT, pady=20, fill=Y)
canvas.configure(yscrollcommand=scrollbar.set)
def on_configure(event):
    canvas.configure(scrollregion=canvas.bbox('all'))
canvas.bind('<Configure>', on_configure)
box_formulario.config(bg='#CCC', padx=40)
canvas.create_window((0, 0), window=box_formulario, anchor='n')

url = 'https://divxtotal7.com/peliculas/page/'+paginacion.get()
header = var.user_agent
r = requests.get(url, headers=header)

soup = html.fromstring(r.text)

links_posts = soup.xpath('//ul[@class="miniboxs miniboxs-ficha"]//div[@class="meta"]/a/@href')
titulos_posts = soup.xpath('//ul[@class="miniboxs miniboxs-ficha"]//div[@class="meta"]/a/text()')
idiomas = soup.xpath('//ul[@class="miniboxs miniboxs-ficha"]//div[@class="imagen"]//img[@class="lazy"]/@src')

row = 1
count = 0

for link_post, titulo_post, idioma in zip(links_posts, titulos_posts, idiomas):
    if idioma == '/images/espanolEspañol.png' or idioma == '/images/espanolEspanol.png':
        idioma = 'Español España'
    elif idioma == '/images/espanolVOSE.png':
        idioma = 'Subtitulado a español'
    elif idioma == '/images/espanolEspanol Latino.png':
        idioma = 'Español Latino'
    numero = Label(box_formulario, text=str(row))
    numero.config(bg='#CCC', fg='black', font=('Arial', 10), pady=5)
    numero.grid(row=row, column=0, sticky='nw')
    #name_peliculas = Label(box_formulario, text=titulo_post)
    #name_peliculas.config(bg='#CCC', fg='black', font=('Arial', 8), pady=5)
    #name_peliculas.grid(row=row, column=1, sticky='n')
    peliculas_listada = Label(box_formulario, text=link_post, textvariable=link_post)
    peliculas_listada.config(bg='#CCC', fg='black', font=('Arial', 10), pady=5)
    peliculas_listada.grid(row=row, column=1, sticky='n', columnspan=2, padx=60)
    idioma_listada = Label(box_formulario, text=idioma)
    idioma_listada.config(bg='#CCC', fg='black', font=('Arial', 10), pady=5)
    idioma_listada.grid(row=row, column=3, sticky='nw')
    importar = Button(box_formulario, text='Importar', command=lambda link=link_post: print(link))
    importar.config(bg='orange', font=('Arial', 10, 'bold'))
    importar.grid(row=row, column=4, sticky='e', padx=25, pady=5)
    count += 1
    row += 1

【讨论】：