我正在尝试创建一个显示所有gtk股票按钮的简单程序
我从以下位置复制了股票ID的列表:
http://www.pygtk.org/pygtk2tutorial/ch-ButtonWidget.html
将它们粘贴到.txt文件中
并从文件中创建了一个列表:
stock_file = open('stock_buttons.txt')
这使得列表看起来像:
stock_button_list = stock_file.readlines()
stock_button_list[0] = ' STOCK_DIALOG_INFO/n'
所以我连接'gtk'。前缀和切掉多余的
然后我用for循环创建按钮:
for each_button in stock_button_list:
self.button1 = gtk.Button(None, each_button)
但Python将each_button解释为一个字符串,我得到了一堆按钮,其中股票ID只是标签。 :(
如果我手动创建库存ID名称列表,它可以工作:
stock_button_list = [gtk.STOCK_DIALOG_INFO, gtk.STOCK_DIALOG_WARNING, etc.]
我的列表很好,看起来与股票ID相同,但它是一个字符串列表。
如何让Python将字符串识别为股票按钮ID的全局变量?
答案 0 :(得分:1)
这么简单:
for button in stock_button_list:
self.button1=gtk.Button(stock=getattr(gtk,button))
使用getattr,您可以按名称访问对象或模块的所有属性。
答案 1 :(得分:0)
一个例子:
>>> import gtk
>>> a='STOCK_DIALOG_WARNING'
>>> getattr(gtk, a)
'gtk-dialog-warning'
答案 2 :(得分:0)
<强>解决强>
正如Revil所说,使用getattr(obj,name)访问带有字符串列表的gtk.STOCK_ *按钮。
只需确保列表中的每个项都与对象中的有效名称匹配,否则将引发AttributeError。
这是我完成的程序。它只显示所有库存按钮 *注意:为了使该程序正常工作,您需要在同一个目录中创建stock_buttons.txt。只需将上述问题中链接的股票ID列表粘贴到文本文件中即可。
#!/usr/bin/env python
# stock_buttons.py
# Simple program to show all stock buttons
# Author: oringe
import pygtk
pygtk.require('2.0')
import gtk
class stock_buttons:
def __init__(self):
self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
self.window.set_title("gtk.STOCK_[Buttons]")
self.window.connect("destroy", lambda wid: gtk.main_quit())
self.window.connect("delete_event", lambda a1,a2:gtk.main_quit())
self.window.set_border_width(10)
# This horizontal box will contain the columns
self.boxH = gtk.HBox(False, 0)
self.window.add(self.boxH)
# Pack the five columns into the HBox
self.box1 = gtk.VBox(False, 0)
self.boxH.pack_start(self.box1, True, True, 0)
self.box2 = gtk.VBox(False, 0)
self.boxH.pack_start(self.box2, True, True, 0)
self.box3 = gtk.VBox(False, 0)
self.boxH.pack_start(self.box3, True, True, 0)
self.box4 = gtk.VBox(False, 0)
self.boxH.pack_start(self.box4, True, True, 0)
self.box5 = gtk.VBox(False, 0)
self.boxH.pack_start(self.box5, True, True, 0)
# Make the list of stock buttons
stock_file = open('stock_buttons.txt')
stock_button_list = stock_file.readlines()
# Slice off excess spaces and line breaks
i = 0
for each_string in stock_button_list:
stock_button_list[i] = stock_button_list[i][2:-1]
i += 1
# Pack 15 buttons per column
i2 = 0
for button in stock_button_list:
if i2 < 15:
self.button1 = gtk.Button(stock=getattr(gtk, button))
self.box1.pack_start(self.button1, True, True, 0)
self.button1.show()
i2 += 1
elif i2 > 14 and i2 < 30:
self.button1 = gtk.Button(stock=getattr(gtk, button))
self.box2.pack_start(self.button1, True, True, 0)
self.button1.show()
i2 += 1
elif i2 > 29 and i2 < 45:
self.button1 = gtk.Button(stock=getattr(gtk, button))
self.box3.pack_start(self.button1, True, True, 0)
self.button1.show()
i2 += 1
elif i2 > 44 and i2 < 60:
self.button1 = gtk.Button(stock=getattr(gtk, button))
self.box4.pack_start(self.button1, True, True, 0)
self.button1.show()
i2 += 1
elif i2 > 59 and i2 < 75 and button != '': #Last item in list is empty''
self.button1 = gtk.Button(stock=getattr(gtk, button))
self.box5.pack_start(self.button1, True, True, 0)
self.button1.show()
i2 += 1
self.box1.show()
self.box2.show()
self.box3.show()
self.box4.show()
self.box5.show()
self.boxH.show()
self.window.show()
def main():
gtk.main()
if __name__ == "__main__":
mybuttons = stock_buttons()
main()