我正在基于Switch between two frames in tkinter进行工作，它仍在进行中，但是我经常遇到使用数据库的问题。
这是我的代码：
import tkinter as tk
import sqlite3
import threading
class SampleApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
self.resizable(0,0)
self.title("Findex")
w, h = self.winfo_screenwidth(), self.winfo_screenheight()
self.overrideredirect(1)
self.geometry("%dx%d+0+0" % (w, h))
container = tk.Frame(self)
container.pack(side="top", fill = "both", expand = True)
container.grid_rowconfigure(0, weight = 1)
container.grid_columnconfigure(0, weight = 1)
self.frames = {}
for F in (Inicio, Registro, RegistroError, Consulta):
page_name = F.__name__
frame=F(parent = container, controller = self)
self.frames[page_name] = frame
frame.grid(row = 0, column = 0, sticky = "nsew")
self.show_frame("Inicio")
def show_frame(self, page_name):
frame = self.frames[page_name]
frame.tkraise()
def get_page(self, page_class):
return self.frames[page_class]
class Inicio(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
labelInicio = tk.Label(self, text = "Bienvendido a Findex")
labelInicio.pack()
botonIncio = tk.Button(self, text = "Comenzar",
command = lambda: controller.show_frame("Registro"))
botonIncio.pack()
class Registro(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
def Usuario():
if entryNombre.get() == "":
labelError.config(text = "No introdujo ningún nombre")
else:
labelError.config(text = "")
labelNombre = tk.Label(self,
text = "Ha escrito " + entryNombre.get() +
" ¿es correcto?")
labelNombre.pack()
def Paso():
controller.show_frame("Consulta")
def Tiempo():
timer = threading.Timer(3.0, Paso)
timer.start()
labelAcceso = tk.Label(self,
text = "Adelante, " + entryNombre.get())
labelAcceso.pack()
botonSi = tk.Button(self, text = "Sí",
command = Tiempo)
botonSi.pack()
botonNo = tk.Button(self, text = "No",
command = lambda: controller.show_frame("RegistroError"))
botonNo.pack()
labelInstruction = tk.Label(self,
text = "Para continuar introduzca su nombre")
labelInstruction.pack()
entryNombre = tk.Entry(self)
entryNombre.pack()
botonConfirmar = tk.Button(self, text = "Confirmar",
command = Usuario)
botonConfirmar.pack()
labelError = tk.Label(self)
labelError.pack()
class RegistroError(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
def Usuario():
if entryNombre.get() == "":
labelError.config(text = "No introdujo ningún nombre")
else:
labelError.config(text = "")
labelNombre = tk.Label(self,
text = "Ha escrito " + entryNombre.get() +
" ¿es correcto?")
labelNombre.pack()
def Paso():
controller.show_frame("Consulta")
def Tiempo():
timer = threading.Timer(2.0, Paso)
timer.start()
labelAcceso = tk.Label(self,
text = "Adelante, " + entryNombre.get())
labelAcceso.pack()
botonSi = tk.Button(self, text = "Sí",
command = Tiempo)
botonSi.pack()
def Error():
labelNombre.config(text = "")
labelInstruction.config(text = "")
botonSi.config(state = "disabled")
botonNo.config(state = "disabled")
entryNombre.config(state = "disabled")
botonConfirmar.config(state = "disabled")
labelFin = tk.Label(self,
text = "Se han agotado las oportunidades. Inténtelo de nuevo")
labelFin.pack()
def Salir():
quit()
botonSalir = tk.Button(self, text = "Aceptar y Salir",
command = Salir)
botonSalir.pack()
botonNo = tk.Button(self, text = "No" , command = Error)
botonNo.pack()
labelInstruction = tk.Label(self,
text = "Para continuar introduzca su nombre")
labelInstruction.pack()
entryNombre = tk.Entry(self)
entryNombre.pack()
botonConfirmar = tk.Button(self, text = "Confirmar",
command = Usuario)
botonConfirmar.pack()
labelError = tk.Label(self)
labelError.pack()
class Consulta(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
labelConsulta = tk.Label(self,
text = "Ingrese el nombre de un producto, marca o tienda",
padx = 30, pady = 15)
labelConsulta.pack()
entryConsulta = tk.Entry(self)
entryConsulta.pack()
def Call():
miConexion = sqlite3.connect("Findex")
miCursor = miConexion.cursor()
query = entryConsulta.get()
miCursor.execute("SELECT * FROM PRODUCTOS WHERE NOMBRE = ? OR MARCA = ? OR ESTABLECIMIENTO = ?", query)
table = miCursor.fetchall()
textConsulta.insert(1.0, table)
miConexion.commit()
botonConsulta = tk.Button(self, text = "Buscar", command = Call)
botonConsulta.pack()
textConsulta = tk.Text(self, bd = 2)
textConsulta.pack()
if __name__ == "__main__":
app = SampleApp()
app.mainloop()
这是我创建数据库的地方：
import sqlite3
miConexion = sqlite3.connect("Findex")
miCursor = miConexion.cursor()
miCursor.execute("""
CREATE TABLE IF NOT EXISTS 'PRODUCTOS' (
ID INTEGER PRIMARY KEY AUTOINCREMENT,
NOMBRE VARCHAR(50),
MARCA VARCHAR(50),
PESO INTEGER,
UNIDAD VARCHAR(20),
PRECIO INTEGER,
CATEGORIA VARCHAR(50),
ESTABLECIMIENTO VARCHAR(50))
""")
datos = [
("Sirope", "Suli", 700, "mililitros", 300, "Bebidas", "Palí"),
("Azúcar", "Doña María", 2, "kilogramos", 1225, "Granos", "Palí"),
("Arroz", "Indiana", 1800, "gramos", 1495, "Granos", "Palí"),
("Café", "Rey", 500, "gramos", 1525, "Bebidas", "Palí"),
("Frijoles", "Indiana", 900, "gramos", 1175, "Granos", "Palí"),
("Sal", "Sal Sol", 500, "gramos", 225, "Granos", "Palí"),
("Aceite", "Clover", 1.5, "litros", 675, "Aceite/Margarina/Mantequilla", "Palí"),
("Huevos", "Don Cristóbal", 500, "gramos", 1975, "Huevos", "Palí"),
("Cereal", "Jack's", 250, "gramos", 2100, "Cereales", "Palí"),
("Mantequilla", "Dos Pinos", 500, "gramos", 675, "Aceite/Margarina/Mantequilla", "Palí"),
("Leche", "Dos Pinos", 1, "litros", 504, "Lácteos", "Palí"),
("Fideos", "Roma", 200, "gramos", 485, "Pastas", "Palí"),
("Jabón", "Fort 3", 1, "kilogramos", 550, "Limpieza", "Palí"),
("Desinfectante", "Floral", 750, "mililitros", 550, "Limpieza", "Palí"),
("Crema dental", "Oral B", 53, "mililitros", 900, "Cuidado personal", "Palí"),
("Jabón de baño", "Protex", 110, "gramos", 505, "Cuidado personal", "Palí"),
("Galletas", "Pozuelo", 31.5, "gramos", 1400, "Snacks", "Palí"),
("Papel higiénico", "Nevax", 1000, "hojas", 2450, "Cuidado personal", "Palí"),
("Toallas", "Nevax", 100, "hojas", 1300, "Limpieza", "Palí"),
("Refresco", "Lio-Té", 100, "gramos", 240, "Bebidas", "Palí"),
("Leche", "Delactomy", 1000, "mililitros", 2795, "Lácteos", "Perimercados"),
("Jamón cocido", "Cinta Azul", 250, "gramos", 2285, "Embutidos", "Perimercados"),
("Salsa inglesa", "Banquete", 700, "gramos", 1950, "Salsas", "Perimercados"),
("Aceite", "Capullo", 900, "mililitros", 925, "Aceite/Margarina/Mantequilla", "Perimercados"),
("Detergente", "Xedex", 5000, "gramos", 7750, "Limpieza", "Perimercados"),
("Lavaplatos", "Axion", 850, "gramos", 1610, "Limpieza", "Perimercados"),
("Arroz", "Imperio", 1, "kilogramos", 1180, "Granos", "Perimercados"),
("Pasta tipo cabello ángel", "Roma", 250, "gramos", 645, "Pastas", "Perimercados"),
("Pan blanco", "Bimbo", 450, "gramos", 1285, "Panes", "Perimercados"),
("Frijoles molidos", "Ducal", 400, "gramos", 910, "Enlatados", "Perimercados"),
("Crema dental", "Colgate", 75, "mililitros", 1390, "Cuidado personal", "Perimercados"),
("Protectores diarios", "Saba", 60, "unidades", 1495, "Cuidado personal", "Perimercados"),
("Café", "1820", 340, "gramos", 2810, "Bebidas", "Perimercados"),
("Avena", "Quaker", 300, "gramos", 805, "Cereales", "Perimercados"),
("Yogurt", "Yoplait", 750, "gramos", 1610, "Lácteos", "Perimercados"),
("Tomate", "-", 1, "kilogramos", 1050, "Frutas", "Perimercados"),
("Uvas mixtas", "-", 500, "gramos", 2600, "Frutas", "Perimercados"),
("Muslo de pollo", "-", 1, "kilogramos", 2300, "Carnes", "Perimercados"),
("Chorizo", "-", 1, "kilogramos", 3020, "Carnes", "Perimercados"),
("Queso", "Zarcero", 1, "kilogramos", 4200, "Lácteos", "Perimercados"),
("Aceite", "Capullo", 900, "mililitros", 880, "Aceite/Margarina/Mantequilla", "Megasuper"),
("Café", "Rey Selecto", 500, "gramos", 1995, "Bebidas", "Megasuper"),
("Margarina", "Numar", 452, "gramos", 1045, "Aceite/Margarina/Mantequilla", "Megasuper"),
("Yogurt", "Coronado", 1000, "mililitros", 1675, "Lácteos", "Megasuper"),
("Galleta soda", "Gama", 192, "gramos", 470, "Snacks", "Megasuper"),
("Molida premium de res", "-", 1, "kilogramos", 5540, "Carnes", "Megasuper"),
("Queso Turrialba", "Dos Pinos", 1, "kilogramos", 4270, "Lácteos", "Megasuper"),
("Chile dulce", "-", 1, "unidades", 325, "Verduras", "Megasuper"),
("Sandía", "-", 1, "kilogramos", 595, "Frutas", "Megasuper"),
("Huevos", "-", 1, "kilogramos", 1650, "Huevos", "Megasuper"),
("Hongos rebanados", "Del Monte", 184, "gramos", 530, "Enlatados", "Megasuper"),
("Frijoles rojos", "Luisiana", 900, "gramos", 1095, "Granos", "Megasuper"),
("Papel higiénico", "Higienol", 4, "unidades", 1550, "Limpieza", "Megasuper"),
("Detergente en polvo", "Rinso", 5000, "gramos", 1650, "Limpieza", "Megasuper"),
("Alimento para perro", "Dog Chow", 4000, "gramos", 10640, "Mascotas", "Megasuper"),
("Chuleta de cerdo", "-", 1, "kilogramos", 3690, "Carnes", "Megasuper"),
("Cerveza", "Imperial", 350, "mililitros", 780, "Bebidas alcohólicas", "Megasuper"),
("Vino", "Clos", 750, "mililitros", 3320, "Bebidas alcohólicas", "Megasuper"),
("Posta de cerdo", "-", 1, "kilogramos", 3490, "Carnes", "Megasuper"),
("Toallas sanitarias", "Kotex", 12, "unidades", 1645, "Ciudades personal", "Megasuper"),
("Crema dental", "Colgate", 75, "mililitros", 1510, "Cuidado personal", "Freshmarket"),
("Frito Lay", "Tostitos", 283, "gramos", 2620, "Snacks", "Freshmarket"),
("Vino", "San Telmo", 750, "mililitros", 7915, "Bebidas alcohólicas", "Freshmarket"),
("Helado Trirts", "Dos Pinos", 540, "gramos", 2950, "Lácteos", "Freshmarket"),
("Repollo verde", "-", 1, "unidades", 695, "Verduras", "Freshmarket"),
("Néctar mixto fruta", "Dos Pinos", 1, "litros", 960, "Bebidas", "Freshmarket"),
("Pan baguette", "AMMM", 300, "gramos", 1000, "Panadería", "Freshmarket"),
("Sandía", "-", 1, "kilogramos", 850, "Frutas", "Freshmarket"),
("Tomate", "-", 1, "kilogramos", 1250, "Frutas", "Freshmarket"),
("Plátono verde", "-", 1, "unidades", 395, "Frutas", "Freshmarket"),
("Papa", "-", 1, "kilogramos", 1295, "Verduras", "Freshmarket"),
("Manga", "-", 1, "kilogramos", 1650, "Frutas", "Freshmarket"),
("Ron", "Flor de Caña", 750, "mililiros", 7000, "Bebidas alcohólicas", "Freshmarket"),
("Papas tostadas", "Lays", 184, "gramos", 1800, "Snacks", "Freshmarket"),
("Jugo de naranja", "Dos Pinos", 1.8, "litros", 2930, "Bebidas", "Freshmarket"),
("Sundae", "Dos Pinos", 110, "gramos", 1620, "Lácteos", "Freshmarket"),
("Bebida energética", "Gatorade", 600, "mililitros", 1460, "Bebidas", "Freshmarket"),
("Deligurt", "Dos Pinos", 200, "mililitros", 850, "Lácteos", "Freshmarket"),
("Gaseosa", "Coca Cola", 2, "litros", 2285, "Bebidas", "Freshmarket"),
("Papas tostadas", "Pringles", 125, "gramos", 2300, "Snacks", "Freshmarket"),
("Toalla nocturna", "Saba", 40, "unidades", 5575, "Cuidado personal", "AutoMercado"),
("Acondicionador para cabello", "Alea", 500, "mililitros", 4215, "Cuidado personal", "AutoMercado"),
("Shampoo con keratina", "Suave", 373, "mililitros", 4000, "Cuidado personal", "AutoMercado"),
("Atún en trozos", "Pronto", 640, "gramos", 7320, "Enlatados", "AutoMercado"),
("Café", "Rey", 400, "gramos", 3500, "Bebidas", "AutoMercado"),
("Frijoles molidos", "Ducal", 400, "gramos", 865, "Enlatados", "AutoMercado"),
("Mayonesa con aceite de oliva", "Alolivo", 400, "gramos", 1595, "Salsas", "AutoMercado"),
("Cereal integral", "Nestle", 450, "gramos", 2700, "Cereales", "AutoMercado"),
("Vino tinto", "Broquel", 750, "mililitros", 10785, "Bebidas alcohólicas", "AutoMercado"),
("Queso mozzarella", "Crystal Farms", 227, "gramos", 3250, "Lácteos", "AutoMercado"),
("Jamón de pavo", "Cinta Azul", 1, "kilogramos", 9925, "Embutidos", "AutoMercado"),
("Bistec de lomo", "AutoMercado", 1, "kilogramos", 14170, "Carnes", "AutoMercado"),
("Chicharrones ahumados", "Jack's", 75, "gramos", 1400, "Carnes", "AutoMercado"),
("Maní con miel", "The Carolina Nut Co", 340, "gramos", 3100, "Snacks", "AutoMercado"),
("Limón ácido", "-", 15, "unidades", 3800, "Frutas", "AutoMercado"),
("Filet de pechuga", "AutoMercado", 1, "kilogramos", 7875, "Carnes", "AutoMercado"),
("Cerveza amarga", "Warsteiner", 500, "mililitros", 1395, "Bebidas alcohólicas", "AutoMercado"),
("Crema croporal", "Bilka", 180, "mililitros", 10265, "Cuidado Personal", "AutoMercado"),
("Tinte para cabello", "Koleston", 1, "unidades", 5915, "Cuidado Personal", "AutoMercado"),
("Toallitas desmaquillantes", "Asepxia", 25, "unidades", 5445, "Cuidado Personal", "AutoMercado")
]
miCursor.executemany("INSERT INTO PRODUCTOS VALUES (NULL, ?, ?, ?, ?, ?, ?, ?)", datos)
miConexion.commit()
miConexion.close()
我希望写出产品的名称，标记或商店，并在文本字段中插入与该条目匹配的所有产品信息，但这会给我'OperationalError'或'sqlite3.ProgrammingError'。
答案 0 :(得分：0)
我认为问题出在这里
query = entryConsulta.get()
miCursor.execute("SELECT * FROM PRODUCTOS WHERE NOMBRE = ? OR MARCA = ? OR ESTABLECIMIENTO = ?", query)
您的陈述接受3个参数，但您仅传递了一个参数
尝试
query = entryConsulta.get()
args = (query,query,query)
miCursor.execute("SELECT * FROM PRODUCTOS WHERE NOMBRE = ? OR MARCA = ? OR ESTABLECIMIENTO = ?", args)
无论如何，我认为您必须在更多模块之间解耦代码，如果您对此类型的程序感兴趣，我建议您将此作为我的 在github上的教学工作
https://github.com/1966bc/Tkinterlite
哈斯塔·卢厄（Hasta luego;）