Python3 Tkinter 字体不起作用
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Python3 Tkinter fonts not working
提问by percidae
I am using python 3.3 with tkinter, and the package python3-tk is installed. In most docs the old "import tkFont" is used, which is not working any more.
我正在将 python 3.3 与 tkinter 一起使用，并且安装了 python3-tk 包。在大多数文档中，使用旧的“import tkFont”，它不再起作用。
This is supposed to work:
这应该有效：
from tkinter import font
appHighlightFont = font.Font(family='Helvetica', size=12, weight='bold')
font.families()
However, I get this exception on the second line:
但是，我在第二行收到此异常：
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.3/tkinter/font.py", line 92, in __init__
root.tk.call("font", "create", self.name, *font)
AttributeError: 'NoneType' object has no attribute 'tk'
I checked http://infohost.nmt.edu/tcc/help/pubs/tkinter/web/fonts.htmland http://www.tkdocs.com/tutorial/fonts.htmlwhich were the most useful tkinter docs so far.
我检查了http://infohost.nmt.edu/tcc/help/pubs/tkinter/web/fonts.html和http://www.tkdocs.com/tutorial/fonts.html这是迄今为止最有用的 tkinter 文档.
Unfortunately I still can't figure out what I am doing wrong.
不幸的是，我仍然无法弄清楚我做错了什么。
采纳答案by Bryan Oakley
You should import fontnot fonts. Also, if the code you posted is actual code, you are neglecting to create a root window before working with fonts. You must create a root window first.
你应该导入font不fonts。此外，如果您发布的代码是实际代码，则您忽略了在使用字体之前创建根窗口。您必须先创建一个根窗口。
from tkinter import font
import tkinter as tk
...
root = tk.Tk()
...
appHighlightFont = font.Font(family='Helvetica', size=12, weight='bold')
font.families()
回答by daBoss
from tkinter import *
from time import sleep
window = Tk()
window.geometry("350x400")
window.title("tkinter!")
lbl = Label(window, text="this is a lable", size=12)
lbl.pack()
sleep(1)
lbl.configure(text="now it is a big lable", size=48)
