PySimpleGUI/ProgrammingClassExamples/1d PSG (named input keys an...

37 lines
1.3 KiB
Python

#PySimple examples (v 3.8)
#Tony Crewe
#Sep 2018
import PySimpleGUI as sg
sg.SetOptions (background_color = 'LightBlue',
element_background_color = 'LightBlue',
text_element_background_color = 'LightBlue',
font = ('Arial', 10, 'bold'),
text_color = 'Blue',
input_text_color ='Blue',
button_color = ('White', 'Blue')
)
#name inputs (key) uses dictionary- easy to see updating of results
#value[input] first input value te c...
layout = [ [sg.Text('Enter a Temperature in Celcius')],
[sg.Text('Celcius', size =(8,1)), sg.InputText(size = (15,1),key = '_input_')],
[sg.Text('Result', size =(8,1)), sg.InputText(size = (15,1),key = '_result_')],
[sg.ReadButton('Submit', bind_return_key = True)]]
window = sg.FlexForm('Temp Converter').Layout(layout)
while True:
button, value = window.Read()
if button is not None:
#catch program errors for text or blank entry:
try:
fahrenheit = round(9/5*float(value['_input_']) +32, 1)
#put result in text box
window.FindElement('_result_').Update(fahrenheit)
except ValueError:
sg.Popup('Error','Please try again')
else:
break