Python tkinter网格布局混乱

我是Python新手，因此我是Tkinter。对于第一个小项目，我试图创建一个程序来编写CSV文件。程序在启动时获取文件名，检查文件头并动态创建必要数量的输入字段

为了便于继续，它显示了最后输入的行

目前我已经完成了一半，最后一行和正确数量的入口小部件显示出来。不幸的是，布局是垃圾

我希望标签在条目窗口小部件前面，退出按钮在底部

有什么想法吗

提前谢谢

# -*- coding: utf-8 -*-
import Tkinter as tk
import argparse
import time

parser = argparse.ArgumentParser()
parser.add_argument('filename', nargs=1, help="file to parse")
args = parser.parse_args()

filename = args.filename[0]


def get_headers(filename):
    with open(filename, 'r') as f:
        headers = f.readline()
    return(headers)


def file_len(filename):
    with open(filename) as f:
        for i, l in enumerate(f):
            pass
    return i, l


class Application(tk.Frame):

    def __init__(self, headers, filename, last_line, master=None):
        tk.Frame.__init__(self, master)
        self.grid()
        self.filename = filename
        lastentry = self.createWidgets(self.filename, headers, last_line)
        # print lastentry
        # print(lastentry[0].get()) # Test
        # lastentry[0].delete(0,tk.END) # Test
        # lastentry[0].insert(0,"Test") # Test

    def createWidgets(self, filename, headers, last_line):
        headers = get_headers(filename).split(',')  # .decode('utf8')
        self.lastentry = []
        self.entryfield = []
        self.label = tk.Label(self, text="CSV Entry Tool").grid(columnspan=3, pady=(0,10))
        for x, y in enumerate(headers):
            self.create_label_widget(x, y)
        for x, y in enumerate(last_line):
            self.lastentry.append(self.create_lastentry_widget(x, y))
        for x in range(len(last_line)):
            self.entryfield.append(self.create_entry_widget(x))

        self.lastlineLabel = tk.Label(self, text="Last Entry: ").grid(row=2, column=1, padx=(10,10), pady=(0,15))
        self.entryLabel = tk.Label(self, text="New Entry: ").grid(row=3, column=1, padx=(10,10), pady=(0,15))

        self.quitButton = tk.Button(self, text='Quit', command=self.quit)
        self.quitButton.grid(row=6, column=6)
        return self.lastentry


    def create_label_widget(self, x, y):
        new_widget = tk.Label(self.master, text=y).grid(row=1, column=x+1, padx=(10,10), pady=(0,15))
        return new_widget

    def create_entry_widget(self, x):
        new_widget = tk.Entry(self.master)
        new_widget.grid(row=3, column=x+1, padx=(10,10), pady=(0,15))
        return new_widget

    def create_lastentry_widget(self, x, y):
        new_widget = tk.Entry(self.master)
        new_widget.grid(row=2, column=x+1, padx=(10,10), pady=(0,15))
        new_widget.insert(1, y)
        new_widget.configure(state="readonly")
        return new_widget

headers = get_headers(filename).split(',')  # .decode('utf8')

print headers

# Check Filelengh and get back last line.
file_lengh, last_line = file_len(filename)
print("Einträge: ".decode('utf8')) + str(file_lengh)
last_line = last_line.split(',')
print last_line


app = Application(headers, filename, last_line)
app.master.title('Sample application')
app.mainloop()

---

您可以在

self

中创建标签和按钮，但在

self.master

中创建其他元素，以便它们可以位于具有自己网格的不同小部件中

将

self.master

更改为

self

并将

column=x+1

更改为

column=x+2

后，我得到了

我还将

var=Widget（…）.grid（…）

更改为

var=Widget（…）

和

var.grid（…）

您应该使用

csv

模块读取数据，因为正确的csv行有3列

 "a","b","(x,y)"

你读4列

而

\n

 "a","b","(x
 y)"

代码将其读取为2行，但只有一行是正确的

代码：

---

顺便说一句：code

var=Widget（…）.grid（…）

将

None

分配给

var

，因为

grid（）

返回

None

-所以分两步执行

var=Widget（…）

和

var.grid（…）

或者跳过变量，如果您不需要它的话-

Widget（…）.grid（…）

您在

self

中创建标签和按钮，但在

self.master

中创建其他元素，这样它们就可以位于具有自己网格的不同小部件中。顺便说一句：使用模块

csv

读取csv文件-现在它错误地读取了我的文件，其中一列中有逗号-就像

“（x，y）”

。如果一列中的文本包含

\n

，也会出现问题。谢谢您的回答。

#!/usr/bin/env python2
# -*- coding: utf-8 -*-

import Tkinter as tk
import argparse
import time

# --- classes ---

class Application(tk.Frame):

    def __init__(self, headers, filename, last_line, master=None):
        tk.Frame.__init__(self, master)
        self.grid()
        self.filename = filename
        lastentry = self.createWidgets(self.filename, headers, last_line)
        # print lastentry
        # print(lastentry[0].get()) # Test
        # lastentry[0].delete(0,tk.END) # Test
        # lastentry[0].insert(0,"Test") # Test

    def createWidgets(self, filename, headers, last_line):
        headers = get_headers(filename).split(',')  # .decode('utf8')

        self.lastentry = []
        self.entryfield = []

        self.label = tk.Label(self, text="CSV Entry Tool")
        self.label.grid(columnspan=3, pady=(0,10))

        for x, y in enumerate(headers):
            self.create_label_widget(x, y)

        for x, y in enumerate(last_line):
            self.lastentry.append(self.create_lastentry_widget(x, y))

        for x in range(len(last_line)):
            self.entryfield.append(self.create_entry_widget(x))

        self.lastlineLabel = tk.Label(self, text="Last Entry: ")
        self.lastlineLabel.grid(row=2, column=1, padx=(10,10), pady=(0,15))

        self.entryLabel = tk.Label(self, text="New Entry: ")
        self.entryLabel.grid(row=3, column=1, padx=(10,10), pady=(0,15))

        self.quitButton = tk.Button(self, text='Quit', command=self.quit)
        self.quitButton.grid(row=6, column=4)

        return self.lastentry


    def create_label_widget(self, x, y):
        new_widget = tk.Label(self, text=y)
        new_widget.grid(row=1, column=x+2, padx=(10,10), pady=(0,15))
        return new_widget

    def create_entry_widget(self, x):
        new_widget = tk.Entry(self)
        new_widget.grid(row=3, column=x+2, padx=(10,10), pady=(0,15))
        return new_widget

    def create_lastentry_widget(self, x, y):
        new_widget = tk.Entry(self)
        new_widget.grid(row=2, column=x+2, padx=(10,10), pady=(0,15))
        new_widget.insert(1, y)
        new_widget.configure(state="readonly")
        return new_widget

# --- functions ---

def get_headers(filename):
    with open(filename, 'r') as f:
        headers = f.readline()
    return(headers)

def file_len(filename):
    with open(filename) as f:
        for i, l in enumerate(f):
            pass
    return i, l

# --- main ---

parser = argparse.ArgumentParser()
parser.add_argument('filename', nargs=1, help="file to parse")
args = parser.parse_args()

filename = args.filename[0]

headers = get_headers(filename).split(',')  # .decode('utf8')

print headers

# Check Filelengh and get back last line.
file_lengh, last_line = file_len(filename)
print("Eintrage: ".decode('utf8')) + str(file_lengh)
last_line = last_line.split(',')
print last_line

app = Application(headers, filename, last_line)
app.master.title('Sample application')
app.mainloop()