Python - “'function' object is not iterable” in GUI Combobox with multiple functions case
Python - "'function' object is not iterable " in GUI Combobox with multiple functions case
代码的用途是
- 对于三个问题中的每一个（组合框样式的 GUI 界面），我必须选择一个项目。
- 对应问题的每一项代表一组数字。
- 根据我选择的三个问题，代码将计算集合的交集并在屏幕上显示答案。
Vall、Vcs、V360...是整数向量。假设他们是给定的。例如：Vall = [6,8,13,17,23,38]... 当然，所有的向量都是相同的维度。
代码：
import openpyxl
import numpy as np
from tkinter import *
import tkinter.ttk as ttk
from openpyxl import Workbook # or "from openpyxl import Workbook": create workbook
from openpyxl import load_workbook # open/excess excel file or spreadsheet existed
from IPython.display import clear_output
# The following defines the function for each question shown on screen.
def selected1(event): # Type
if mycombobox.get() == 'Type':
return Vall
if mycombobox.get() == 'clam shell':
return Vcs
if mycombobox.get() == '360\u00b0':
return V360
def selected2(event): # WLAN1
if mycombobox.get() == 'WLAN1 ant. position':
return Vall
if mycombobox1.get() == 'hinge':
return Vhinge1
if mycombobox1.get() == 'top':
return Vtop1
def selected3(event): # WLAN2
if mycombobox.get() == 'WLAN2 ant. position':
return Vall
if mycombobox2.get() == 'hinge':
return Vhinge2
if mycombobox2.get() == 'top':
return Vtop2
# The following function does the intersection of three sets obtained above.
def set_intersection(xx1,xx2,xx3):
collect_all = [xx1,xx2,xx3]
recc = set.intersection(*map(set,collect_all)) # <----------------------
my_list = list(recc)
my_list.sort()
return my_list
# ================== The main part: GUI. ======================
root = Tk()
root.title('Industry Solution')
root.geometry("500x800")
# === Type (first question: type of computer), three choices: Type, clam shell... ===
label_a = Label(root, text="1. type of computer")
label_a.pack(side = TOP, pady=1)
type_com = ['Type', 'clam shell', '360\u00b0']
mycombobox = ttk.Combobox(root, values = type_com)
mycombobox.current(0)
mycombobox.bind('<<ComboboxSelected>>',selected1)
mycombobox.pack(side = TOP, pady=1)
recc1 = selected1
# === WLAN1 position (second question: where is the WLAN1 antenna position)===
label_b = Label(root, text="2. WLAN1 antenna position")
label_b.pack(side = TOP, pady=1)
WLAN1_ant = ['WLAN1 ant. position', 'hinge', 'top']
mycombobox1 = ttk.Combobox(root, values = WLAN1_ant)
mycombobox1.current(0)
mycombobox1.bind('<<ComboboxSelected>>',selected2)
mycombobox1.pack(side = TOP, pady=1)
recc2 = selected1
# === WLAN2 position (third question: where is the WLAN2 antenna position) ===
label_c = Label(root, text="3. WLAN2 antenna position")
label_c.pack(side = TOP, pady=1)
WLAN2_ant = ['WLAN2 ant. position', 'hinge', 'top']
mycombobox2 = ttk.Combobox(root, values = WLAN2_ant)
mycombobox2.current(0)
mycombobox2.bind('<<ComboboxSelected>>',selected3)
mycombobox2.pack(side = TOP, pady=1)
recc3 = selected3
# === Result (After choosing answers, push button, and then codes will do calculation)===
mybutton = Button(root, text = 'OK, send out', command = set_intersection(recc1,recc2,recc3)) # <----------------------
mybutton.pack(side = TOP, pady=10)
root.mainloop()
当我运行代码时，它显示错误：
TypeError: 'function' object is not iterable
--> 55 recc = set.intersection(*map(set,collect_all))
--> 40 mybutton = Button(root, text = 'OK, send out', command = set_intersection(recc1,recc2,recc3))
我想我应该在selectedi()中放一个参数，i=1~3，函数类似
recc1 = selected1(values)
recc2 = selected2(values)
recc3 = selected3(values)
但是，值已在组合框中使用。我不知道如何更正我的代码。
感谢任何有用的建议。
我看到的唯一问题是您将整个函数调用转储到 command 参数中。它不是这样工作的。 command 应该等于对要调用的函数的引用，如下所示：
command=set_intersection
但是，您有一堆要传递的参数。您可以使这些参数 global 或者您可以将整个内容包装在 lambda 中。一种方法是这样的：
command = lambda r1=recc1, r2=recc2, r3=recc3: set_intersection(r1,r2,r3)
当你这样做时：command = set_intersection(recc1,recc2,recc3) 你是在告诉 python command 等于 my_list（即来自 set_intersection 的 return功能）。 command 应该等于一个函数，而不是 list，这就是为什么它告诉你“函数对象不可迭代”。它的意思（用更清晰的术语）是：“你不能在我期望函数的地方分配一个列表”
set_intersection(recc1,recc2,recc3) 此代码是 executed when declared 和 return 的列表。列表不能是按钮的命令。按照link解决这个问题。
此外，selected1 到 3 将 return 未定义的值。不管怎样，你需要做什么。
首先将位置参数更改为 selected1-3 的可选关键字参数。这使您可以在没有事件对象的情况下调用这些函数，作为替代方案，您可以传递 None.
def selected1(event=None): # Type
下一步是您想要 returned 值而不是存储函数，因此执行它们：
collect_all = [xx1(),xx2(),xx3()]
您还需要使用正确的组合框来获得正确的值：
if mycombobox1.get() == 'WLAN1 ant. position':
虽然我不知道这一行的目的set.intersection(*map(set,collect_all))我会留给你解决
#import openpyxl
#import numpy as np
from tkinter import *
import tkinter.ttk as ttk
#from openpyxl import Workbook # or "from openpyxl import Workbook": create workbook
#from openpyxl import load_workbook # open/excess excel file or spreadsheet existed
#from IPython.display import clear_output
# The following defines the function for each question shown on screen.
def selected1(event=None): # Type
if mycombobox.get() == 'Type':
return 'hello'#Vall
if mycombobox.get() == 'clam shell':
return Vcs
if mycombobox.get() == '360\u00b0':
return V360
def selected2(event=None): # WLAN1
if mycombobox1.get() == 'WLAN1 ant. position':
return 'world'#Vall
if mycombobox1.get() == 'hinge':
return Vhinge1
if mycombobox1.get() == 'top':
return Vtop1
def selected3(event=None): # WLAN2
if mycombobox2.get() == 'WLAN2 ant. position':
return 'and all other'#Vall
if mycombobox2.get() == 'hinge':
return Vhinge2
if mycombobox2.get() == 'top':
return Vtop2
# The following function does the intersection of three sets obtained above.
def set_intersection(xx1,xx2,xx3):
collect_all = [xx1,xx2,xx3]
print(collect_all)
recc = set.intersection(*map(set,collect_all)) # <----------------------
my_list = list(recc)
my_list.sort()
return my_list
# ================== The main part: GUI. ======================
root = Tk()
root.title('Industry Solution')
root.geometry("500x800")
# === Type (first question: type of computer), three choices: Type, clam shell... ===
label_a = Label(root, text="1. type of computer")
label_a.pack(side = TOP, pady=1)
type_com = ['Type', 'clam shell', '360\u00b0']
mycombobox = ttk.Combobox(root, values = type_com)
mycombobox.current(0)
mycombobox.bind('<<ComboboxSelected>>',selected1)
mycombobox.pack(side = TOP, pady=1)
recc1 = selected1
# === WLAN1 position (second question: where is the WLAN1 antenna position)===
label_b = Label(root, text="2. WLAN1 antenna position")
label_b.pack(side = TOP, pady=1)
WLAN1_ant = ['WLAN1 ant. position', 'hinge', 'top']
mycombobox1 = ttk.Combobox(root, values = WLAN1_ant)
mycombobox1.current(0)
mycombobox1.bind('<<ComboboxSelected>>',selected2)
mycombobox1.pack(side = TOP, pady=1)
recc2 = selected2
# === WLAN2 position (third question: where is the WLAN2 antenna position) ===
label_c = Label(root, text="3. WLAN2 antenna position")
label_c.pack(side = TOP, pady=1)
WLAN2_ant = ['WLAN2 ant. position', 'hinge', 'top']
mycombobox2 = ttk.Combobox(root, values = WLAN2_ant)
mycombobox2.current(0)
mycombobox2.bind('<<ComboboxSelected>>',selected3)
mycombobox2.pack(side = TOP, pady=1)
recc3 = selected3
# === Result (After choosing answers, push button, and then codes will do calculation)===
mybutton = Button(root, text = 'OK, send out', command = lambda:set_intersection(recc1(),recc2(),recc3())) # <----------------------
mybutton.pack(side = TOP, pady=10)
root.mainloop()
代码的用途是
- 对于三个问题中的每一个（组合框样式的 GUI 界面），我必须选择一个项目。
- 对应问题的每一项代表一组数字。
- 根据我选择的三个问题，代码将计算集合的交集并在屏幕上显示答案。
Vall、Vcs、V360...是整数向量。假设他们是给定的。例如：Vall = [6,8,13,17,23,38]... 当然，所有的向量都是相同的维度。
代码：
import openpyxl
import numpy as np
from tkinter import *
import tkinter.ttk as ttk
from openpyxl import Workbook # or "from openpyxl import Workbook": create workbook
from openpyxl import load_workbook # open/excess excel file or spreadsheet existed
from IPython.display import clear_output
# The following defines the function for each question shown on screen.
def selected1(event): # Type
if mycombobox.get() == 'Type':
return Vall
if mycombobox.get() == 'clam shell':
return Vcs
if mycombobox.get() == '360\u00b0':
return V360
def selected2(event): # WLAN1
if mycombobox.get() == 'WLAN1 ant. position':
return Vall
if mycombobox1.get() == 'hinge':
return Vhinge1
if mycombobox1.get() == 'top':
return Vtop1
def selected3(event): # WLAN2
if mycombobox.get() == 'WLAN2 ant. position':
return Vall
if mycombobox2.get() == 'hinge':
return Vhinge2
if mycombobox2.get() == 'top':
return Vtop2
# The following function does the intersection of three sets obtained above.
def set_intersection(xx1,xx2,xx3):
collect_all = [xx1,xx2,xx3]
recc = set.intersection(*map(set,collect_all)) # <----------------------
my_list = list(recc)
my_list.sort()
return my_list
# ================== The main part: GUI. ======================
root = Tk()
root.title('Industry Solution')
root.geometry("500x800")
# === Type (first question: type of computer), three choices: Type, clam shell... ===
label_a = Label(root, text="1. type of computer")
label_a.pack(side = TOP, pady=1)
type_com = ['Type', 'clam shell', '360\u00b0']
mycombobox = ttk.Combobox(root, values = type_com)
mycombobox.current(0)
mycombobox.bind('<<ComboboxSelected>>',selected1)
mycombobox.pack(side = TOP, pady=1)
recc1 = selected1
# === WLAN1 position (second question: where is the WLAN1 antenna position)===
label_b = Label(root, text="2. WLAN1 antenna position")
label_b.pack(side = TOP, pady=1)
WLAN1_ant = ['WLAN1 ant. position', 'hinge', 'top']
mycombobox1 = ttk.Combobox(root, values = WLAN1_ant)
mycombobox1.current(0)
mycombobox1.bind('<<ComboboxSelected>>',selected2)
mycombobox1.pack(side = TOP, pady=1)
recc2 = selected1
# === WLAN2 position (third question: where is the WLAN2 antenna position) ===
label_c = Label(root, text="3. WLAN2 antenna position")
label_c.pack(side = TOP, pady=1)
WLAN2_ant = ['WLAN2 ant. position', 'hinge', 'top']
mycombobox2 = ttk.Combobox(root, values = WLAN2_ant)
mycombobox2.current(0)
mycombobox2.bind('<<ComboboxSelected>>',selected3)
mycombobox2.pack(side = TOP, pady=1)
recc3 = selected3
# === Result (After choosing answers, push button, and then codes will do calculation)===
mybutton = Button(root, text = 'OK, send out', command = set_intersection(recc1,recc2,recc3)) # <----------------------
mybutton.pack(side = TOP, pady=10)
root.mainloop()
当我运行代码时，它显示错误：
TypeError: 'function' object is not iterable
--> 55 recc = set.intersection(*map(set,collect_all))
--> 40 mybutton = Button(root, text = 'OK, send out', command = set_intersection(recc1,recc2,recc3))
我想我应该在selectedi()中放一个参数，i=1~3，函数类似
recc1 = selected1(values)
recc2 = selected2(values)
recc3 = selected3(values)
但是，值已在组合框中使用。我不知道如何更正我的代码。
感谢任何有用的建议。
我看到的唯一问题是您将整个函数调用转储到 command 参数中。它不是这样工作的。 command 应该等于对要调用的函数的引用，如下所示：
command=set_intersection
但是，您有一堆要传递的参数。您可以使这些参数 global 或者您可以将整个内容包装在 lambda 中。一种方法是这样的：
command = lambda r1=recc1, r2=recc2, r3=recc3: set_intersection(r1,r2,r3)
当你这样做时：command = set_intersection(recc1,recc2,recc3) 你是在告诉 python command 等于 my_list（即来自 set_intersection 的 return功能）。 command 应该等于一个函数，而不是 list，这就是为什么它告诉你“函数对象不可迭代”。它的意思（用更清晰的术语）是：“你不能在我期望函数的地方分配一个列表”
set_intersection(recc1,recc2,recc3) 此代码是 executed when declared 和 return 的列表。列表不能是按钮的命令。按照link解决这个问题。
此外，selected1 到 3 将 return 未定义的值。不管怎样，你需要做什么。
首先将位置参数更改为 selected1-3 的可选关键字参数。这使您可以在没有事件对象的情况下调用这些函数，作为替代方案，您可以传递 None.
def selected1(event=None): # Type
下一步是您想要 returned 值而不是存储函数，因此执行它们：
collect_all = [xx1(),xx2(),xx3()]
您还需要使用正确的组合框来获得正确的值：
if mycombobox1.get() == 'WLAN1 ant. position':
虽然我不知道这一行的目的set.intersection(*map(set,collect_all))我会留给你解决
#import openpyxl
#import numpy as np
from tkinter import *
import tkinter.ttk as ttk
#from openpyxl import Workbook # or "from openpyxl import Workbook": create workbook
#from openpyxl import load_workbook # open/excess excel file or spreadsheet existed
#from IPython.display import clear_output
# The following defines the function for each question shown on screen.
def selected1(event=None): # Type
if mycombobox.get() == 'Type':
return 'hello'#Vall
if mycombobox.get() == 'clam shell':
return Vcs
if mycombobox.get() == '360\u00b0':
return V360
def selected2(event=None): # WLAN1
if mycombobox1.get() == 'WLAN1 ant. position':
return 'world'#Vall
if mycombobox1.get() == 'hinge':
return Vhinge1
if mycombobox1.get() == 'top':
return Vtop1
def selected3(event=None): # WLAN2
if mycombobox2.get() == 'WLAN2 ant. position':
return 'and all other'#Vall
if mycombobox2.get() == 'hinge':
return Vhinge2
if mycombobox2.get() == 'top':
return Vtop2
# The following function does the intersection of three sets obtained above.
def set_intersection(xx1,xx2,xx3):
collect_all = [xx1,xx2,xx3]
print(collect_all)
recc = set.intersection(*map(set,collect_all)) # <----------------------
my_list = list(recc)
my_list.sort()
return my_list
# ================== The main part: GUI. ======================
root = Tk()
root.title('Industry Solution')
root.geometry("500x800")
# === Type (first question: type of computer), three choices: Type, clam shell... ===
label_a = Label(root, text="1. type of computer")
label_a.pack(side = TOP, pady=1)
type_com = ['Type', 'clam shell', '360\u00b0']
mycombobox = ttk.Combobox(root, values = type_com)
mycombobox.current(0)
mycombobox.bind('<<ComboboxSelected>>',selected1)
mycombobox.pack(side = TOP, pady=1)
recc1 = selected1
# === WLAN1 position (second question: where is the WLAN1 antenna position)===
label_b = Label(root, text="2. WLAN1 antenna position")
label_b.pack(side = TOP, pady=1)
WLAN1_ant = ['WLAN1 ant. position', 'hinge', 'top']
mycombobox1 = ttk.Combobox(root, values = WLAN1_ant)
mycombobox1.current(0)
mycombobox1.bind('<<ComboboxSelected>>',selected2)
mycombobox1.pack(side = TOP, pady=1)
recc2 = selected2
# === WLAN2 position (third question: where is the WLAN2 antenna position) ===
label_c = Label(root, text="3. WLAN2 antenna position")
label_c.pack(side = TOP, pady=1)
WLAN2_ant = ['WLAN2 ant. position', 'hinge', 'top']
mycombobox2 = ttk.Combobox(root, values = WLAN2_ant)
mycombobox2.current(0)
mycombobox2.bind('<<ComboboxSelected>>',selected3)
mycombobox2.pack(side = TOP, pady=1)
recc3 = selected3
# === Result (After choosing answers, push button, and then codes will do calculation)===
mybutton = Button(root, text = 'OK, send out', command = lambda:set_intersection(recc1(),recc2(),recc3())) # <----------------------
mybutton.pack(side = TOP, pady=10)
root.mainloop()