My problem is running a thread so that my GUI does not freeze which works fine with a window.perform_long_operation. But the problem arises when I want a popup to show up while running the thread and then wait for user input from the popup to continue the function. I am pasting a very small part of my full GUI code.
from threading import Thread
import time
import PySimpleGUI as sg
import queue
# A function to send text to an element one character at a time with a delay of 0.08s
def slow_type(el, text, delay=0.08):
for character in text:
el.send_keys(character)
time.sleep(delay)
def cont_auto(que):
# cont_auto_value = sg.PopupYesNo("Continue?")
# que.put(item=cont_auto_value)
# new_wo_window.write_event_value(key="-MASUM-", value=que.put(item=cont_auto_value))
**
TRIED USING THE POPUP AS A SEPARATE FUNCTION AND PUTTING THE VALUE IN A QUEUE. STILL
DOES N0T WORK.**
def google_search(que):
# sg.cprint_set_output_destination(window=main_window, multiline_key="-MAIN-ML-")
from selenium.webdriver.common.by import By
from selenium import webdriver
from selenium.webdriver.common.action_chains import ActionChains
from page_locators.PageLocators import dir_list
opt = webdriver.ChromeOptions()
opt.add_experimental_option("prefs", {
'download.default_directory': dir_list.new_folder,
'download.prompt_for_download': False,
'download.directory_upgrade': True,
'plugins.always_open_pdf_externally': True
})
opt.add_argument("--kiosk-printing")
driver = webdriver.Chrome(r"C:\Users\me_a1\Desktop\chromedriver.exe",
chrome_options=opt)
action = ActionChains(driver)
driver.get("https:www.google.com")
driver.maximize_window()
# Wait 2 seconds for elements to load
time.sleep(2)
item = que.get()
# new_wo_window.write_event_value(key="-GOOGLE-", value=item)
print(item)
if item == "Yes":
search_textbox = driver.find_element(By.XPATH, "//input[@class='gLFyf gsfi']")
action.click(search_textbox).send_keys("real madrid").perform()
time.sleep(2)
driver.quit()
else:
search_textbox = driver.find_element(By.XPATH, "//input[@class='gLFyf gsfi']")
action.click(search_textbox).send_keys("uefa").perform()
time.sleep(2)
driver.quit()
que.task_done()
def new_wo():
new_wo_layout = [[sg.Text("Search Term:".upper(), pad=((5, 0), (0, 0)))],
[sg.InputText("", key="search", pad=((5, 0), (0, 0)))]
]
layout_new_wo = [[sg.Column(new_wo_layout)],
[sg.Button("Create WO", pad=((10, 0), (15, 0))), sg.Button("Cancel", pad=((20, 0), (15, 0)))]]
new_wo_window = sg.Window(title=window_title(), layout=layout_new_wo, finalize=True, modal=True)
while not new_wo_window.is_closed():
new_wo_event, new_wo_values = new_wo_window.read()
search = [i.strip().upper()
for i in str(new_wo_values["search"]).split("_.)(") if i != ""]
if new_wo_event in [sg.WIN_CLOSED, "Cancel"]:
new_wo_window.close()
break
elif new_wo_event == "Create WO":
if all(len(new_wo_info_list) != 0 for new_wo_info_list in [search]):
create_wo = sg.PopupYesNo("Start search?".upper(),
"(please check your data before clicking
yes)".upper(),
f"Search terms: {''.join(search)}",
modal=True, title="wo create data".upper())
if create_wo == "Yes":
# que = queue.Queue()
# function_thread = Thread(target=google_search, args=(que,), daemon=True)
# function_thread.start()
# continue_automation_popup_thread = Thread(target=cont_auto, args=(que,))
# continue_automation_popup_thread.start()
# continue_automation_popup_thread.join()
# wait for all work to be processed
# que.join()
else:
sg.Popup("New WO creation cancelled!".upper(), modal=True, title="wo
cancel".upper())
else:
sg.Popup("Please check that all data is provided".upper(), modal=True,
title="Missing Data".upper())
def window_title():
title = []
for key, value in main_values.items():
if value:
title.append(str(key).upper())
return title[0]
# Define the layout of the program's first window
sg.theme_global("DarkBlack1")
text_list = ["New WO"]
layout = [[sg.Radio(str(text_list[i].upper()), enable_events=True, key=str(text_list[i]), group_id=0)]
for i in range(0, len(text_list))]
layout = [[sg.Multiline(size=(65, 23), key="-MAIN-ML-", pad=((5, 0), (0, 0)))],
[sg.Button("Cancel", pad=((5, 0), (10, 6)))]]
layout = [[sg.Menubar(menu_definition=[["SETTINGS", ("COLOR SCHEME",
["Dark Mode", "Light Mode", "Rose Pink",
"Bright Red", "Midnight Blue"])]])]]
layout_frame = [[sg.Frame(title="Select Option".upper(), title_color="yellow", layout=layout)]]
main_window = sg.Window(title="Work Order Automation".upper(), layout=layout_frame, element_justification='c',
finalize=True)
while True:
main_event, main_values = main_window.read()
"""End program if user closes window or
presses the Cancel button"""
if main_event == sg.WIN_CLOSED or main_event == "Cancel":
break
if main_event == "New WO":
new_wo() ---> The Layout that should run the thread and show the POPUP
continue
The exception trace is as follows:
Exception ignored in: <function Variable.__del__ at 0x000002A95AF86B90>
Traceback (most recent call last):
File "C:\Users\me_a1\AppData\Local\Programs\Python\Python310\lib\tkinter\__init__.py", line 388, in __del__
if self._tk.getboolean(self._tk.call("info", "exists", self._name)):
RuntimeError: main thread is not in main loop
Exception ignored in: <function Variable.__del__ at 0x000002A95AF86B90>
Traceback (most recent call last):
File "C:\Users\me_a1\AppData\Local\Programs\Python\Python310\lib\tkinter\__init__.py", line 388, in __del__
if self._tk.getboolean(self._tk.call("info", "exists", self._name)):
RuntimeError: main thread is not in main loop
Exception ignored in: <function Variable.__del__ at 0x000002A95AF86B90>
Traceback (most recent call last):
File "C:\Users\me_a1\AppData\Local\Programs\Python\Python310\lib\tkinter\__init__.py", line 388, in __del__
if self._tk.getboolean(self._tk.call("info", "exists", self._name)):
RuntimeError: main thread is not in main loop
Exception in thread Thread-2 (cont_auto):
Traceback (most recent call last):
File "C:\Users\me_a1\AppData\Local\Programs\Python\Python310\lib\threading.py", line 1009, in _bootstrap_inner
self.run()
File "C:\Users\me_a1\AppData\Local\Programs\Python\Python310\lib\threading.py", line 946, in run
self._target(*self._args, **self._kwargs)
File "C:\Users\me_a1\Desktop\WO_Automation\GUI\testing.py", line 18, in cont_auto
cont_auto_value = sg.PopupYesNo("Continue?")
File "C:\Users\me_a1\AppData\Local\JetBrains\PyCharmCE2022.1\demo\PyCharmLearningProject\venv\lib\site-packages\PySimpleGUI\PySimpleGUI.py", line 20106, in popup_yes_no
return popup(*args, title=title, button_type=POPUP_BUTTONS_YES_NO, background_color=background_color,
File "C:\Users\me_a1\AppData\Local\JetBrains\PyCharmCE2022.1\demo\PyCharmLearningProject\venv\lib\site-packages\PySimpleGUI\PySimpleGUI.py", line 19390, in popup
button, values = window.read()
File "C:\Users\me_a1\AppData\Local\JetBrains\PyCharmCE2022.1\demo\PyCharmLearningProject\venv\lib\site-packages\PySimpleGUI\PySimpleGUI.py", line 10072, in read
results = self._read(timeout=timeout, timeout_key=timeout_key)
File "C:\Users\me_a1\AppData\Local\JetBrains\PyCharmCE2022.1\demo\PyCharmLearningProject\venv\lib\site-packages\PySimpleGUI\PySimpleGUI.py", line 10143, in _read
self._Show()
File "C:\Users\me_a1\AppData\Local\JetBrains\PyCharmCE2022.1\demo\PyCharmLearningProject\venv\lib\site-packages\PySimpleGUI\PySimpleGUI.py", line 9883, in _Show
StartupTK(self)
File "C:\Users\me_a1\AppData\Local\JetBrains\PyCharmCE2022.1\demo\PyCharmLearningProject\venv\lib\site-packages\PySimpleGUI\PySimpleGUI.py", line 16817, in StartupTK
root = tk.Toplevel(class_=window.Title)
File "C:\Users\me_a1\AppData\Local\Programs\Python\Python310\lib\tkinter\__init__.py", line 2650, in __init__
BaseWidget.__init__(self, master, 'toplevel', cnf, {}, extra)
File "C:\Users\me_a1\AppData\Local\Programs\Python\Python310\lib\tkinter\__init__.py", line 2601, in __init__
self.tk.call(
RuntimeError: main thread is not in main loop
The solution can be overcome if I run the function in the main "while" loop of the top-level GUI, but I want it to run in the sub-GUI that opens after clicking on the radio button.
For simplicity's sake, I have only provided the minimum GUI code if the problem arises in. There are more radio buttons that open sub-GUIs that perform other functions. It is only the "New WO" radio button whose function needs a popup right before the end of the script. I have replaced the long function with a google_search() function again to simplify everything. Hopefully, this will allow others to read and understand the code much more quicker.
CodePudding user response：
Maybe you can split the code in one thread to different threads.
Demo code
from time import sleep
import PySimpleGUI as sg
def func(win, index):
for i in range(0, 51):
sleep(0.1)
win.write_event_value('Update', (f'P{index}', i))
sg.theme('DarkBlue3')
layout = [
[sg.Text('', size=(50, 1), relief='sunken', font=('Courier', 11), text_color='yellow', background_color='black',key=f'P{i}')] for i in (1, 2)] [
[sg.Button('Start')],
]
window = sg.Window("Title", layout)
sg.theme('DarkBlue4')
while True:
event, values = window.read()
if event == sg.WIN_CLOSED:
break
elif event == 'Start':
window['Start'].update(disabled=True)
window['P1'].update('')
window['P2'].update('')
window.perform_long_operation(lambda win=window, index=1:func(win, index), "P1 Done")
elif event == "P1 Done":
if sg.popup_yes_no("Step 2 ?") == 'Yes':
window.perform_long_operation(lambda win=window, index=2:func(win, index), "P2 Done")
else:
window['Start'].update(disabled=False)
elif event == "P2 Done":
window['Start'].update(disabled=False)
elif event == 'Update':
key, i = values[event]
window[key].update('█'*i)
window.close()
