读取变量，与 CSV 数据进行比较并输出一行

Question

我今天在让一些 CSV 文件正常工作方面完全崩溃了。下面是完整的代码以及 csv 文件的剪切和粘贴。 我正在尝试做的是在车间订单字段中输入一个与 CSV 第一列中的数字匹配的数字。当匹配到整行打印到大输出框时，第二部分将拆分 csv 字段，以便将数据输入到数量和描述字段中，但我可能应该先学会爬行。

我无法让 csv 显示在输出框中，我无法确定问题出在哪里，或者我是否缺少代码。

如果我删除 csv 代码，输入到车间订单框中的数字会打印到大输出框中，输入的任何字母都会显示一个运行良好的错误框，它只是下一个问题。

from tkinter import *
from tkinter import ttk
import sys
import csv
from csv import DictReader

class GUI:
def __init__(self, rootWindow):

    #variable
    sonumber = StringVar()
    result = int()

    #item1
    self.label = ttk.Label(rootWindow, text="Shop Order:")
    self.label.grid(row=1, column=1, sticky=(E), padx=3, pady=3)

    self.SOentry = ttk.Entry(rootWindow, width=5, background="white", textvariable = sonumber)
    self.SOentry.grid(row=1, column=2, sticky=(W, E), padx=3, pady=3) 
    #item2
    self.label2 = ttk.Label(rootWindow, text="Quantity:")
    self.label2.grid(row=1, column=3, sticky=(E), padx=3, pady=3)

    self.outputQty = Text(rootWindow, width=5, height=1, background="white")
    self.outputQty.grid(row=1, column=4, sticky=(W, E), padx=3, pady=3) 

    #item3
    self.label3 = ttk.Label(rootWindow, text="Description:")
    self.label3.grid(row=2, column=1, sticky=(E), padx=3, pady=3)

    self.outputDesc = Text(rootWindow, width=5, height=1, background="white")
    self.outputDesc.grid(row=2, column=2, columnspan=5, sticky=(W, E), padx=3, pady=3) 

    #output
    self.label4 = ttk.Label(rootWindow, text="Drawings:")
    self.label4.grid(row=3, column=1, sticky=(N,E), padx=3, pady=3)

    self.dwgoutputbox = Text(rootWindow, width=50, height=15, background="white")
    self.dwgoutputbox.grid(row=3, column=2, columnspan=5, padx=3, pady=3)
    sys.stdout = TextRedirector(self.dwgoutputbox, "printdwgoutputbox") #redirects from shell to screen

    #buttons
    def DoASearch():
        try:
            print(int(sonumber.get()))
        except ValueError:
            messagebox.showwarning("Fail !!", "Please enter a valid Shop Order number.")

        with open("lesspreadsheettest.csv") as csvfile:
            reader = csv.DictReader(csvfile)
            for row in reader:
                result=(row['Shop Order'])
                if sonumber == result:
                    print(row['Shop Order'], row['Part Number'], row['Description'])

    self.searchbutton = ttk.Button(rootWindow, text="Search", command=DoASearch)
    self.searchbutton.grid(row=1, column=7, sticky=W, padx=3, pady=3)


    def clear_text():
        self.SOentry.delete(0, 'end')

    self.clrsearchbutton = ttk.Button(rootWindow, text="Reset", command=clear_text)
    self.clrsearchbutton.grid(row=2, column=7, sticky=W, padx=3, pady=3)
    #

    self.exitbutton = ttk.Button(rootWindow, text="Exit", command=rootWindow.destroy)
    self.exitbutton.grid(row=3, column=7, sticky=(N,W), padx=3, pady=3)


class TextRedirector(object):
def __init__(self, widget, tag="printdwgoutputbox"):
    self.widget = widget
    self.tag = tag

def write(self, str):
    self.widget.configure(state="normal")
    self.widget.insert("end", str, (self.tag,))
    self.widget.configure(state="disabled")

def main():
global label   
rootWindow = Tk()
rootWindow.title("Production Drawings")
rootWindow.geometry("575x325+600+300")
gui = GUI(rootWindow)
rootWindow.mainloop()

main()

My test csv code is
Shop Order  Part Number Description Quantity
12345   5-1841111-1 Ferrari California  1
12346   5-1841222-2 Porsche 911 2
12347   5-1841333-3 Lamborghini Aventador   3
12348   5-1841444-4 Jaguar F-Type   4
12349   5-1841555-5 Bugatti Veyron  5

Answer 1

您的 sonumber 变量是 Tkinter StringVar，而不是普通的 Python 字符串。当您进行比较时：

if sonumber == result:
    print(row['Shop Order'], row['Part Number'], row['Description'])

您正在将 Tkinter StringVar 与字符串进行比较，因此它始终评估为 False。如果你改用sonumber.get()，你会得到实际值，你应该没有问题。