我试着用一个全局变量。我已经声明它为global开始,并且在每次提到时都声明它,但是在第一个函数完成之后,我会得到一个NameError。这是密码,我想我已经发疯了,但我似乎找不到问题所在。在
def on_servername_insertatcursor(self, widget):
global output
output = StringIO.StringIO()
servername = widget.get_text()
output.write("USHARE_NAME="+servername+'\n')
def on_netif_changed(self, widget):
netif = widget.get_active_text()
global output
output.write("USHARE_IFACE="+netif+'\n')
def on_port_insertatcursor(self, widget):
global output
port = widget.get_text()
output.write("USHARE_PORT="+port+'\n')
def on_telprt_insertatcursor(self, widget):
global output
telprt = widget.get_text()
output.write("USHARE_TELNET_PORT="+telprt+'\n')
def on_dirs_insertatcursor(self, widget):
global output
dirs = widget.get_text()
output.write("USHARE_DIR="+dirs+'\n')
def on_iconv_toggled(self, widget):
global output
iconv = widget.get_active()
if iconv == True:
output.write("USHARE_OVERRIDE_ICONV_ERR="+"True"+'\n')
else:
output.write("USHARE_OVERRIDE_ICONV_ERR="+"False"+'\n')
def on_webif_toggled(self, widget):
global output
webif = widget.get_active()
if webif == True:
output.write("USHARE_ENABLE_WEB="+"yes"+'\n')
else:
output.write("USHARE_ENABLE_WEB="+"no"+'\n')
def on_telif_toggled(self, widget):
global output
telif = widget.get_active()
if telif == True:
output.write("USHARE_ENABLE_TELNET="+"yes"+'\n')
else:
output.write("USHARE_ENABLE_TELNET="+"no"+'\n')
def on_xbox_toggled(self, widget):
global output
xbox = widget.get_active()
if xbox == True:
output.write("USHARE_ENABLE_XBOX="+"yes"+'\n')
else:
output.write("USHARE_ENABLE_XBOX="+"no"+'\n')
def on_dlna_toggled(self, widget):
global output
dlna = widget.get_active()
if dlna == True:
output.write("USHARE_ENABLE_DLNA="+"yes"+'\n')
else:
output.write("USHARE_ENABLE_DLNA="+"no"+'\n')
def on_commit_clicked(self, widget):
commit = output.getvalue()
logfile = open('/home/boywithaxe/Desktop/ushare.conf','w')
logfile.write(commit)
def on_endprogram_clicked(self, widget):
sys.exit(0)
令人惊奇的是,当insertacursor(来自Gtk.TextBuffer.insert\u光标处())被替换为activate,代码工作得很好,只是我不想让用户在每次输入数据后都按enter键。在
编辑。回溯如下
^{pr2}$完成了@jdi建议的更改(顺便说一句,我看到了背后的逻辑),我得到的回溯如下:
Traceback (most recent call last):
File "/home/boywithaxe/Developer/Quickly/broadcast/broadcast/BroadcastWindow.py", line 55, in on_netif_changed
OUTPUT.write("USHARE_IFACE="+netif+'\n')
NameError: global name 'OUTPUT' is not defined
Traceback (most recent call last):
File "/home/boywithaxe/Developer/Quickly/broadcast/broadcast/BroadcastWindow.py", line 72, in on_iconv_toggled
OUTPUT.write("USHARE_OVERRIDE_ICONV_ERR="+"True"+'\n')
NameError: global name 'OUTPUT' is not defined
Traceback (most recent call last):
File "/home/boywithaxe/Developer/Quickly/broadcast/broadcast/BroadcastWindow.py", line 79, in on_webif_toggled
OUTPUT.write("USHARE_ENABLE_WEB="+"yes"+'\n')
NameError: global name 'OUTPUT' is not defined
Traceback (most recent call last):
File "/home/boywithaxe/Developer/Quickly/broadcast/broadcast/BroadcastWindow.py", line 86, in on_telif_toggled
OUTPUT.write("USHARE_ENABLE_TELNET="+"yes"+'\n')
NameError: global name 'OUTPUT' is not defined
Traceback (most recent call last):
File "/home/boywithaxe/Developer/Quickly/broadcast/broadcast/BroadcastWindow.py", line 93, in on_xbox_toggled
OUTPUT.write("USHARE_ENABLE_XBOX="+"yes"+'\n')
NameError: global name 'OUTPUT' is not defined
Traceback (most recent call last):
File "/home/boywithaxe/Developer/Quickly/broadcast/broadcast/BroadcastWindow.py", line 100, in on_dlna_toggled
OUTPUT.write("USHARE_ENABLE_DLNA="+"yes"+'\n')
NameError: global name 'OUTPUT' is not defined
Traceback (most recent call last):
File "/home/boywithaxe/Developer/Quickly/broadcast/broadcast/BroadcastWindow.py", line 105, in on_commit_clicked
commit = OUTPUT.getvalue()
NameError: global name 'OUTPUT' is not defined
您的代码示例不需要全局变量。把它取下来。唯一需要在函数中使用global关键字的时候是要分配给它的。在
即使您希望能够在函数中重置StringIO对象,也不需要赋值或全局关键字:
^{pr2}$证明它有效
输出
尝试将
output = StringIO.StringIO()
移到文件中的所有函数之外。在好吧,这个问题的问题是令人遗憾的缩进:)查看PyGTK docs表明所示的
on_...
函数确实是类的方法,而不是全局函数,因此“global”变量可能不是真正的全局变量,而是类的一个成员(只需看看方法定义中的self
参数)。在我对askubuntu给出了更详细的答案,下面是一个代码片段,它显示了需要做的事情:
绝对不涉及PyGTK特定或特定于信号的魔法:)
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