所以，我正在構建一個小 Python 程式來為我做一些成本和吞吐量計算。請記住，我是 Python 新手，對 PySimpleGUI 與此專案完全陌生。我特別關心為什么在下面的代碼中，第 59 行（thruput_window['LISTBOX'].update(prompt)在update_values()函式內）導致程式掛起？我認為它應該使用指定的字串進行更新，并繼續通過 while 回圈，但它只是停止運行，甚至不使用prompt. 有任何想法嗎？
感謝您的幫助，并為長代碼塊道歉；我不經常在這里發帖，也不確定要包含多少內容，所以我只發布了整個內容。
# Throughput & Cost of Ownership Calculations
# Import necessary libraries
import PySimpleGUI as sg
# Define functions
def import_values():
mylines = []
myvalues = []
with open(r'throughput_variables.txt', 'r') as file:
for myline in file:
mylines.append(myline.rstrip('\n'))
for element in mylines:
start = element.find(':') 2
end = len(element)
value = int(element[start:end])
myvalues.append(value)
return myvalues
def import_variables():
mylines = []
myvariables = []
with open(r'throughput_variables.txt', 'r') as file:
for myline in file:
mylines.append(myline.rstrip('\n'))
for element in mylines:
variable = element[:element.find(':')]
myvariables.append(variable)
return myvariables
def display_file():
mylines = []
myfile = []
with open(r'throughput_variables.txt', 'r') as file:
for myline in file:
mylines.append(myline.rstrip('\n'))
for element in mylines:
myfile.append(element)
return myfile
def update_values():
Qtable1 = "What is the total recipe 1 time? \n"
Qtable2 = "What is the total recipe 2 time? \n"
Qtable3 = "What is the total recipe 3 time? \n"
Qcleaner = "What is the total recipe time for the cleaner? \n"
Qwts4 = "How long does it take to unload? \n"
Qwetbot = "How long does it take the robot to handle? \n"
myprompts = [Qtable1, Qtable2, Qtable3, Qcleaner, Qwts4, Qwetbot]
myvariables = import_variables()
myvalues = ['','','','','','']
k = 0
thruput_window['USER-INPUT'].bind('<Return>', '_Enter')
with open(r'throughput_variables.txt', 'w ') as file:
while k < 6:
prompt = [myprompts[k]]
thruput_window['LISTBOX'].update(prompt)
if thruputEvent == 'USER-INPUT' and '_Enter':
myvalues.append(thruputValues['USER-INPUT'])
thruput_window['LISTBOX'].update([prompt[k],myvalues[k]])
file.write(myvariables[k] ": " myvalues[k] "\n")
k = k 1
return import_values()
def calc_thruput(myvalues):
t1_time = myvalues[0]
t2_time = myvalues[1]
t3_time = myvalues[2]
cleaner_time = myvalues[3]
wts4_transfer_time = myvalues[4]
wet_bot_time = myvalues[5]
denominator = max(t1_time, t2_time, t3_time) - min(t1_time, t2_time, t3_time) \
max(t3_time, cleaner_time) wts4_transfer_time wet_bot_time
numerator = 3600
thruput = numerator / denominator
return round(thruput, 2)
# Setup the home screen GUI
sg.theme('Dark2')
fnt = ('Gadugi', 20)
layout = [[sg.Text("What would you like to calculate? \n", font=('Gadugi', 40))],
[sg.Button("Cost of Ownership")],
[sg.Button("Throughput")],
[sg.Button("Exit")]]
# Create the window
main_window = sg.Window("Operations Estimations", layout, margins=(400, 250), font=fnt)
# Create an event loop
while True:
event, values = main_window.read()
if event == "Throughput":
with open(r'throughput_variables.txt', 'r') as file:
content = display_file()
layout = [[sg.Text("Do these times look correct, or would you like to append? ", font=('Gadugi', 30))],
[sg.Text("All times are in seconds. ", font=fnt)],
[sg.Listbox(values=content, size=(70, 10), key='LISTBOX')],
[sg.Input(size=(25, 1), enable_events=True, key='USER-INPUT')],
[sg.Button("Correct")],
[sg.Button("Append")],
[sg.Button("Go Back")]]
thruput_window = sg.Window("Throughput Calculator", layout, margins=(325, 150), font=fnt)
while True:
thruputEvent, thruputValues = thruput_window.read()
if thruputEvent == "Correct":
answer = ["Throughput = ", str(calc_thruput(import_values())) " microns/hour"]
thruput_window['LISTBOX'].update(answer)
if thruputEvent == "Append":
answer = ["Throughput = ", str(calc_thruput(update_values())) " microns/hour"]
thruput_window['LISTBOX'].update(answer)
elif thruputEvent == "Go Back" or event == sg.WIN_CLOSED:
break
thruput_window.close()
# End program if user presses Exit or closes the window
if event == "Exit" or event == sg.WIN_CLOSED:
break
main_window.close()
編輯：所以我接受了擺脫嵌套視窗（謝謝）的建議，并在單擊左列中相應的選擇時，設定右列。但即使現在簡單得多，我現在甚至無法進入CorrectorAppend回圈 - 我錯過了什么？我確定這是簡單的事情，我過于復雜了。
# Setup the overall GUI font and theme, column structure, and window layout
sg.theme('Dark2')
fnt = ('Gadugi', 20)
left_column = [[sg.Text("What would you like to calculate? \n", font=('Gadugi', 30))],
[sg.Button("Throughput"),
sg.Button("Cost of Ownership"),
sg.Button("Exit")]]
right_column = [[sg.Text("Do these times look correct, or would you like to append? ", font=('Gadugi', 30), key='HEADER', visible=False)],
[sg.Text("All times are in seconds. ", font=fnt, key='WARNING', visible=False)],
[sg.Listbox(values=[], size=(70, 10), key='LISTBOX', visible=False)],
[sg.Input(size=(25, 1), enable_events=True, key='USER-INPUT', visible=False)],
[sg.Button("Correct", key='CORRECT', visible=False),
sg.Button("Append", key='APPEND', visible=False)]]
layout = [[sg.Column(left_column),
sg.VSeparator(),
sg.Column(right_column)]]
window = sg.Window("Operations Estimations", layout, font=fnt)
# Create an event loop
while True:
event, values = window.read()
if event == "Exit" or event == sg.WIN_CLOSED:
break
if event == "Throughput":
window['HEADER'].update(visible=True)
window['WARNING'].update(visible=True)
window['LISTBOX'].update(visible=True)
window['USER-INPUT'].update(visible=True)
window['CORRECT'].update(visible=True)
window['APPEND'].update(visible=True)
with open(r'throughput_variables.txt', 'r') as file:
content = display_file()
window['LISTBOX'].update(content)
if event == "Correct":
window['LISTBOX'].update(["TEST"])
print('This is working')
# answer = ["6EZ Throughput = ", str(calc_thruput(import_values())) " microns/hour"]
# window['LISTBOX'].update(answer)
if event == "Append":
window['USER-INPUT'].bind('<Return>', '_Enter')
answer = ["Throughput = ", str(calc_thruput(update_values())) " microns/hour"]
window['LISTBOX'].update(answer)
window.close()
uj5u.com熱心網友回復：
update_values 在 thruput_window 的事件“Append”中呼叫。
在功能上update_values，你做錯了什么
- 系結回傳鍵到 element
'USER-INPUT'，系結應該在你的 thruput_window 完成后立即完成，然后 while 回圈讀取事件。
thruput_window = sg.Window("Throughput Calculator", layout, margins=(325, 150), font=fnt, finalize=True) # Add option `finalize=True`
thruput_window['USER-INPUT'].bind('<Return>', '_Enter')
- 一次又一次地更新元素，最好一次更新。包括 thruput_window 的“Append”事件中的更新，總共 13 次，但只顯示了最后一次。
with open(r'throughput_variables.txt', 'w ') as file:
while k < 6:
prompt = [myprompts[k]]
thruput_window['LISTBOX'].update(prompt)
if thruputEvent == 'USER-INPUT' and '_Enter':
myvalues.append(thruputValues['USER-INPUT'])
thruput_window['LISTBOX'].update([prompt[k],myvalues[k]])
file.write(myvariables[k] ": " myvalues[k] "\n")
k = k 1
- 錯誤的事件處理，它在事件“Append”下，所以遵循 if 將始終為 False。它應該在 thruput_window 的 while 回圈中，所以一個新的 thruput_window.read() 來獲取事件，沒有
read，沒有新的 thruputEvent 和 thruputValues。
if thruputEvent == 'USER-INPUT' and '_Enter':
- 元素與str鍵系結的事件，事件將是key '_Enter'，所以應該是這樣的
if thruputEvent == 'USER-INPUT_Enter':
嵌套視窗或while回圈使您的代碼復雜，最好使用另一個函式來處理您的第二個視窗，可能像這樣
import PySimpleGUI as sg
def function():
sg.theme("DarkGrey3")
layout = [
[sg.Text()],
[sg.Input(key='INPUT')],
[sg.Button('OK'), sg.Button('Cancel')],
[sg.Text()],
]
window = sg.Window('POPUP', layout, finalize=True, modal=True)
window['INPUT'].bind("<Return>", "_RETURN")
while True:
event, values = window.read()
if event in (sg.WINDOW_CLOSED, 'Cancel'):
value = None
break
elif event == 'OK':
value = values['INPUT']
break
window.close()
return value
font = ('Courier New', 11)
sg.theme('DarkBlue3')
sg.set_options(font=font)
layout = [
[sg.Button("Get Input")],
[sg.Text("",size=(80, 1), key='TEXT')],
]
window = sg.Window('Title', layout, finalize=True)
while True:
event, values = window.read()
if event == sg.WINDOW_CLOSED:
break
elif event == 'Get Input':
value = function()
if value is None:
window['TEXT'].update('[Cancel]')
else:
window['TEXT'].update(value)
window.close()
[更新]
對于 Button 的鍵，它定義為
- 如果
key定義了一個選項 - 如果
k定義了一個選項 - 如果在布局中不重復，則使用 button_text
str(element.Key) str(window.UniqueKeyCounter))重復時使用
在這里，您將按鈕的鍵定義為“CORRECT”和“APPEND”，事件始終是元素的鍵，而不是 button_text。這就是為什么您永遠不會進入“正確”和“附加”的事件處理程式的原因。
轉載請註明出處，本文鏈接：https://www.uj5u.com/qita/383974.html
標籤：Python 蟒蛇-3.x 用户界面 pysimplegui
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