Python Tkinter 运行 在一个变量中定义循环条目 x 次
Python Tkinter Run in a loop entries x times defined in a variable
我想使用 Tkinter 创建一个 Python 脚本来定义网络的数量，并使用用户在输入字段中插入的值，在下一页中创建 x 次网络来定义。然后由用户插入的值创建一个具有如下模式的文件：
--- #
networks:
- { cloud: cloud1, network: }
- { cloud: cloud1, network: }
- { cloud: cloud1, network: }
- { cloud: cloud1, network: }
...
示例：
如果用户在 "Define the number of networks" 页面输入 20，那么我们应该在 "Define the networks" 页面中有 20 个输入字段，并且在文件中有 20 行：- { cloud: cloud1, network: }
@AXK 帮我完成了这个，非常感谢。例如，当我有 10 个以上的网络要介绍时，我也想有一个卷轴。我已经尝试使用 AXK 代码将其更改如下：
import Tkinter as tk
import tkFont as tkfont
import sys
from Tkinter import *
class SampleApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
self.title_font = tkfont.Font(
family="Helvetica", size=18, weight="bold", slant="italic"
)
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.container = container
self.current_frame = None
self.num_networks = tk.IntVar() # Var shared between pages
self.show_frame("StartPage")
def show_frame(self, page_name):
"""Show a frame for the given page name"""
if self.current_frame:
self.current_frame.destroy()
self.current_frame = None
frame_class = globals()[page_name] # Ugly, but works.
frame = frame_class(parent=self.container, controller=self)
frame.grid(row=0, column=0, sticky="nsew")
frame.tkraise()
self.current_frame = frame
class StartPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self,text="This is the start page",font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
button1 = tk.Button(self,text="Define the number of networks",command=lambda: controller.show_frame("PageOne"))
button1.pack()
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self,text="Define the number of networks",font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
nwnum = tk.Entry(self, textvariable=controller.num_networks)
nwnum.pack()
button1 = tk.Button(self,text="Go to the start page",command=lambda: controller.show_frame("StartPage"),)
button1.pack()
button2 = tk.Button(self,text="Define the networks",command=lambda: controller.show_frame("PageTwo"),)
button2.pack()
class PageTwo(tk.Frame):
def getent1(self):
with open("/home/dante/output.txt", "w") as f:
f.write("--- #" + "\n")
f.write("networks:" + "\n")
for entvar in self.entry_vars:
value = entvar.get()
if value:
f.write("- { cloud: cloud1, network: "+ value+ " }"+ "\n")
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
self.scrollbar = Scrollbar(self, orient='vertical')
label = tk.Label(self,text="Define the networks",font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
self.entries = []
self.entry_vars = []
self.scrollbar.config(command=self.yview)
self.scrollbar.pack(side='right', fill='y')
for t in range(1, self.controller.num_networks.get()+1):
entvar = tk.StringVar()
ent = tk.Entry(self, textvariable=entvar)
self.entry_vars.append(entvar)
self.entries.append(ent)
ent.pack()
button3 = tk.Button(self,text="Go to the start page",command=lambda: controller.show_frame("StartPage"),)
button3.pack()
button4 = tk.Button(self, text="Create the networks", command=self.getent1)
button4.pack()
def yview(self, *args):
self.entry_vars.yview(*args)
if __name__ == "__main__":
app = SampleApp()
app.mainloop()
当我 运行 它时，我看到选项卡右侧的滚动条，但是当我按下或向上按下时，出现以下错误：
Exception in Tkinter callback
Traceback (most recent call last):
File "/usr/lib64/python2.7/lib-tk/Tkinter.py", line 1470, in __call__
return self.func(*args)
File "program.py", line 96, in yview
self.entry_vars.yview(*args)
AttributeError: 'list' object has no attribute 'yview'
我怎样才能做到这一点？
P.S。我对编程还很陌生
我稍微重构了一下：
- 我更改了导入以与我的 Python 3 安装一起使用。事情可能对你有所不同。
- YAML 输出被写入
sys.stdout，而不是文件，因为我没有 /home/dante。 ;)
- 框架对象现在并没有立即全部初始化；相反，它们只是被创造出来的
当
show_frame 被调用时。
- 保存网络数量的 Tk 变量现在属于
controller；子帧 write/read 从那里开始。
- 保存第 3 帧网络名称的字符串变量存储在第三帧的列表中，并在 YAML 写入函数中从那里读取。
import tkinter as tk
from tkinter import font as tkfont
import sys
class SampleApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
self.title_font = tkfont.Font(
family="Helvetica", size=18, weight="bold", slant="italic"
)
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.container = container
self.current_frame = None
self.num_networks = tk.IntVar() # Var shared between pages
self.show_frame("StartPage")
def show_frame(self, page_name):
"""Show a frame for the given page name"""
if self.current_frame:
self.current_frame.destroy()
self.current_frame = None
frame_class = globals()[page_name] # Ugly, but works.
frame = frame_class(parent=self.container, controller=self)
frame.grid(row=0, column=0, sticky="nsew")
frame.tkraise()
self.current_frame = frame
class StartPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(
self,
text="This is the start page",
font=controller.title_font,
)
label.pack(side="top", fill="x", pady=10)
button1 = tk.Button(
self,
text="Define the number of networks",
command=lambda: controller.show_frame("PageOne"),
)
button1.pack()
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(
self,
text="Define the number of networks",
font=controller.title_font,
)
label.pack(side="top", fill="x", pady=10)
nwnum = tk.Entry(self, textvariable=controller.num_networks)
nwnum.pack()
button1 = tk.Button(
self,
text="Go to the start page",
command=lambda: controller.show_frame("StartPage"),
)
button1.pack()
button2 = tk.Button(
self,
text="Define the networks",
command=lambda: controller.show_frame("PageTwo"),
)
button2.pack()
class PageTwo(tk.Frame):
def getent1(self):
f = sys.stdout
f.write("--- #" + "\n")
f.write("networks:" + "\n")
for entvar in self.entry_vars:
value = entvar.get()
if value:
f.write(
"- { cloud: cloud1, network: "
+ value
+ " }"
+ "\n"
)
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(
self,
text="Define the networks",
font=controller.title_font,
)
label.pack(side="top", fill="x", pady=10)
self.entries = []
self.entry_vars = []
for t in range(1, self.controller.num_networks.get()):
entvar = tk.StringVar()
ent = tk.Entry(self, textvariable=entvar)
self.entry_vars.append(entvar)
self.entries.append(ent)
ent.pack()
button3 = tk.Button(
self,
text="Go to the start page",
command=lambda: controller.show_frame("StartPage"),
)
button3.pack()
button4 = tk.Button(
self, text="Create the networks", command=self.getent1
)
button4.pack()
if __name__ == "__main__":
app = SampleApp()
app.mainloop()
我想使用 Tkinter 创建一个 Python 脚本来定义网络的数量，并使用用户在输入字段中插入的值，在下一页中创建 x 次网络来定义。然后由用户插入的值创建一个具有如下模式的文件：
--- #
networks:
- { cloud: cloud1, network: }
- { cloud: cloud1, network: }
- { cloud: cloud1, network: }
- { cloud: cloud1, network: }
...
示例：
如果用户在 "Define the number of networks" 页面输入 20，那么我们应该在 "Define the networks" 页面中有 20 个输入字段，并且在文件中有 20 行：- { cloud: cloud1, network: }
@AXK 帮我完成了这个，非常感谢。例如，当我有 10 个以上的网络要介绍时，我也想有一个卷轴。我已经尝试使用 AXK 代码将其更改如下：
import Tkinter as tk
import tkFont as tkfont
import sys
from Tkinter import *
class SampleApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
self.title_font = tkfont.Font(
family="Helvetica", size=18, weight="bold", slant="italic"
)
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.container = container
self.current_frame = None
self.num_networks = tk.IntVar() # Var shared between pages
self.show_frame("StartPage")
def show_frame(self, page_name):
"""Show a frame for the given page name"""
if self.current_frame:
self.current_frame.destroy()
self.current_frame = None
frame_class = globals()[page_name] # Ugly, but works.
frame = frame_class(parent=self.container, controller=self)
frame.grid(row=0, column=0, sticky="nsew")
frame.tkraise()
self.current_frame = frame
class StartPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self,text="This is the start page",font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
button1 = tk.Button(self,text="Define the number of networks",command=lambda: controller.show_frame("PageOne"))
button1.pack()
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(self,text="Define the number of networks",font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
nwnum = tk.Entry(self, textvariable=controller.num_networks)
nwnum.pack()
button1 = tk.Button(self,text="Go to the start page",command=lambda: controller.show_frame("StartPage"),)
button1.pack()
button2 = tk.Button(self,text="Define the networks",command=lambda: controller.show_frame("PageTwo"),)
button2.pack()
class PageTwo(tk.Frame):
def getent1(self):
with open("/home/dante/output.txt", "w") as f:
f.write("--- #" + "\n")
f.write("networks:" + "\n")
for entvar in self.entry_vars:
value = entvar.get()
if value:
f.write("- { cloud: cloud1, network: "+ value+ " }"+ "\n")
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
self.scrollbar = Scrollbar(self, orient='vertical')
label = tk.Label(self,text="Define the networks",font=controller.title_font)
label.pack(side="top", fill="x", pady=10)
self.entries = []
self.entry_vars = []
self.scrollbar.config(command=self.yview)
self.scrollbar.pack(side='right', fill='y')
for t in range(1, self.controller.num_networks.get()+1):
entvar = tk.StringVar()
ent = tk.Entry(self, textvariable=entvar)
self.entry_vars.append(entvar)
self.entries.append(ent)
ent.pack()
button3 = tk.Button(self,text="Go to the start page",command=lambda: controller.show_frame("StartPage"),)
button3.pack()
button4 = tk.Button(self, text="Create the networks", command=self.getent1)
button4.pack()
def yview(self, *args):
self.entry_vars.yview(*args)
if __name__ == "__main__":
app = SampleApp()
app.mainloop()
当我 运行 它时，我看到选项卡右侧的滚动条，但是当我按下或向上按下时，出现以下错误：
Exception in Tkinter callback
Traceback (most recent call last):
File "/usr/lib64/python2.7/lib-tk/Tkinter.py", line 1470, in __call__
return self.func(*args)
File "program.py", line 96, in yview
self.entry_vars.yview(*args)
AttributeError: 'list' object has no attribute 'yview'
我怎样才能做到这一点？
P.S。我对编程还很陌生
我稍微重构了一下：
- 我更改了导入以与我的 Python 3 安装一起使用。事情可能对你有所不同。
- YAML 输出被写入
sys.stdout，而不是文件，因为我没有/home/dante。 ;) - 框架对象现在并没有立即全部初始化；相反，它们只是被创造出来的
当
show_frame被调用时。 - 保存网络数量的 Tk 变量现在属于
controller；子帧 write/read 从那里开始。 - 保存第 3 帧网络名称的字符串变量存储在第三帧的列表中，并在 YAML 写入函数中从那里读取。
import tkinter as tk
from tkinter import font as tkfont
import sys
class SampleApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
self.title_font = tkfont.Font(
family="Helvetica", size=18, weight="bold", slant="italic"
)
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.container = container
self.current_frame = None
self.num_networks = tk.IntVar() # Var shared between pages
self.show_frame("StartPage")
def show_frame(self, page_name):
"""Show a frame for the given page name"""
if self.current_frame:
self.current_frame.destroy()
self.current_frame = None
frame_class = globals()[page_name] # Ugly, but works.
frame = frame_class(parent=self.container, controller=self)
frame.grid(row=0, column=0, sticky="nsew")
frame.tkraise()
self.current_frame = frame
class StartPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(
self,
text="This is the start page",
font=controller.title_font,
)
label.pack(side="top", fill="x", pady=10)
button1 = tk.Button(
self,
text="Define the number of networks",
command=lambda: controller.show_frame("PageOne"),
)
button1.pack()
class PageOne(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(
self,
text="Define the number of networks",
font=controller.title_font,
)
label.pack(side="top", fill="x", pady=10)
nwnum = tk.Entry(self, textvariable=controller.num_networks)
nwnum.pack()
button1 = tk.Button(
self,
text="Go to the start page",
command=lambda: controller.show_frame("StartPage"),
)
button1.pack()
button2 = tk.Button(
self,
text="Define the networks",
command=lambda: controller.show_frame("PageTwo"),
)
button2.pack()
class PageTwo(tk.Frame):
def getent1(self):
f = sys.stdout
f.write("--- #" + "\n")
f.write("networks:" + "\n")
for entvar in self.entry_vars:
value = entvar.get()
if value:
f.write(
"- { cloud: cloud1, network: "
+ value
+ " }"
+ "\n"
)
def __init__(self, parent, controller):
tk.Frame.__init__(self, parent)
self.controller = controller
label = tk.Label(
self,
text="Define the networks",
font=controller.title_font,
)
label.pack(side="top", fill="x", pady=10)
self.entries = []
self.entry_vars = []
for t in range(1, self.controller.num_networks.get()):
entvar = tk.StringVar()
ent = tk.Entry(self, textvariable=entvar)
self.entry_vars.append(entvar)
self.entries.append(ent)
ent.pack()
button3 = tk.Button(
self,
text="Go to the start page",
command=lambda: controller.show_frame("StartPage"),
)
button3.pack()
button4 = tk.Button(
self, text="Create the networks", command=self.getent1
)
button4.pack()
if __name__ == "__main__":
app = SampleApp()
app.mainloop()