在 perforce 触发器脚本中调用时不会出现 Tkinter Messagebox

Question

我正在为我们的 Perforce 服务器使用 P4Python 接口在 Python 3.8.7 中编写脚本。在某些情况下，我不想中止更改的提交，但我需要通知用户一些信息。为此，我想使用 tkinter 库中的消息框。如果脚本由 perforce 执行，消息框不会出现，但如果我运行它在终端中，它会按预期工作。

任何解决这个问题的线索。

这是我的脚本的代码片段，我希望在其中显示消息框。

def setupConnection(cfg):
connectionError = False
exit = False
errorMsg = ""
while not exit:
    try:
        client = http.client.HTTPConnection(cfg.serverAddress)
        client.connect()        
    except: 
        connectionError = True        
        errorMsg = "Address " + cfg.serverAddress + " is not available! Check connection or configuration."
        #sys.exit("Address " + cfg.serverAddress + " is not available! Check connection or configuration.")

    if not connectionError:
        client.request(method=GET, url=cfg.apiAddress, headers=cfg.headers)
        response = client.getresponse()
        if response.status == pageNotFound404:
            connectionError = True
            errorMsg = "Address " + cfg.apiAddress + " is not available! Check connection or configuration."
            #sys.exit("Address " + cfg.apiAddress + " is not available! Check connection or configuration.")
        else:
            cfg.apiGetResponse = (response.read()).decode()
            exit = True
            return client
    if connectionError:  
        window = Tk()
        window.eval('tk::PlaceWindow %s center' % window.winfo_toplevel())
        window.withdraw()
        if not messagebox.askretrycancel('Connection error', errorMsg, icon='error'):
            exit = True              
            errorMsg = ('Please add changelist ' + cfg.changelist_ID + ' in ' + cfg.customFieldName + ' textbox of workpackage ' + cfg.workpackage_ID)
            messagebox.showinfo('User action required', errorMsg)
        window.destroy()
        window.quit()
        return None

Answer 1

触发器在服务器上定义和执行。如果您在服务器上弹出一个消息框，客户端将看不到它。相反，您的脚本应该将消息打印到标准输出；服务器将拾取它并将其发送给客户端（客户端可以将其打印到控制台或将其放入 GUI window 或适合该客户端应用程序的任何内容）。

https://www.perforce.com/perforce/doc.current/manuals/p4sag/Content/P4SAG/scripting.triggers.basics.html#Communic

在 perforce 触发器脚本中调用时不会出现 Tkinter Messagebox

Tkinter Messagebox doesn´t appear when called in perforce trigger script

perforce

messagebox

p4python

python-3.x