问题描述
我刚刚从 python 3.6 切换到 python 3.7.我有一个函数可以在带有标签的 Treeview 树中插入行.标签用于为插入树的行提供前景色和背景色.当我使用 python 3.6 时,我的代码工作正常.切换到 3.7 后,插入的行没有被赋予背景或前景色,而只被赋予了白色背景和黑色前景色.
I have just switched from python 3.6 to python 3.7. I have a function which inserts rows in a Treeview tree with tags. The tags are used for giving a foreground color and a background color to the rows inserted to the tree. My code was working ok when I was using python 3.6. Once I switched to 3.7 the rows inserted were not given a background or foreground color but where only given a white background and a black foreground color.
tkinter.ttk 从 python 3.6 到 3.7 似乎没有关于标签配置或树插入的语法更改.
There doesn't seem to be a syntax change in tkinter.ttk from python 3.6 to 3.7 regarding tag configuration or tree insert.
tree.tag_configure('MATCHED', foreground='dark green', background='gray98')
tree.tag_configure('UNMATCHED', foreground='red2', background='gray98')
if match_status== '1':
tree.insert('', 'end', text=df_row, values=my_value, tag='MATCHED')
elif match_status == '0':
tree.insert('', 'end', text=df_row, values=my_value, tag='UNMATCHED')`
预计当将行插入到树中时,会被赋予正确的背景和前景色.
It is expected that when the rows are inserted to the tree to be given the correct background and foreground color.
感谢任何帮助.
推荐答案
看起来问题是由较新版本的 tkinter 引起的,而不是较新版本的 Python.https://bugs.python.org/issue36468 和 https://core.tcl-lang.org/tk/info/509cafafae
Looks like the issue was caused by a newer version of tkinter, not a newer version of Python. This was reported in https://bugs.python.org/issue36468 and https://core.tcl-lang.org/tk/info/509cafafae
这是一个建议的解决方案.它应该是向后和向前兼容的:
Here is a proposed solution. It should be both backward and forward compatible:
def fixed_map(option):
# Fix for setting text colour for Tkinter 8.6.9
# From: https://core.tcl.tk/tk/info/509cafafae
#
# Returns the style map for 'option' with any styles starting with
# ('!disabled', '!selected', ...) filtered out.
# style.map() returns an empty list for missing options, so this
# should be future-safe.
return [elm for elm in style.map('Treeview', query_opt=option) if
elm[:2] != ('!disabled', '!selected')]
style = ttk.Style()
style.map('Treeview', foreground=fixed_map('foreground'), background=fixed_map('background'))
这篇关于插入带有标签的行时出现 Tkinter Treeview 问题的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!