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Python's function update() not recognized


By : Sagar Srivastava
Date : October 16 2020, 08:10 AM
around this issue , If you want to update one or two fields you could use:
code :
theme = Theme(name = "osman")
new_theme = Theme(name = "miras")
theme.name=new_theme.name
db.session.commit()
print(theme) # osman will change to miras
dict_to_update = {'name': new_theme.name}
updated_theme = Theme.query.filter_by(name="miras").update(dict_to_update)
db.session.commit()
print(theme) # osman will change to miras


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How does Pythons .grid() function work


By : Sea Surf
Date : March 29 2020, 07:55 AM
hop of those help? Since you're using pack as your geometry manager, tkinter doesn't know what to do when you call grid on one of the buttons. Pick one geometry manager and stick with it throughout your window.
code :
from tkinter import *

master = Tk()

# some dummy callback functions
callback, callback2, callback3, callback4, callbackinput = [lambda: None]*5    

#creates entry inputs for answers
entry=Entry(master)
entry.grid(row=0, column=0, columnspan=6)
entry.focus_set() 

#button 1 created and used to call addition function
b1 = Button(master, text="+", command=callback)
b1.grid(row=1, column=0)

#button 2 created and used to call subtraction function
b2 = Button(master, text="-", command=callback2)
b2.grid(row=1, column=1)

#button 3 created and used to call divison function
b3 = Button(master, text="/", command=callback3)
b3.grid(row=1, column=2)

#button 4 created and used to call multiplication function
b4 = Button(master, text="*", command=callback4)
b4.grid(row=1, column=3)

#button 5 created and used to check answers
b5 = Button(master, text="Check Ans", width=10, command=callbackinput)
b5.grid(row=1, column=4, columnspan=2)

Why isn't Pythons randint Function actually Random?


By : nixklai
Date : March 29 2020, 07:55 AM
This might help you There's a bug in your condition -- you should be checking whether either the row or column was wrong, not whether both are wrong. As it is, if only one of the numbers is wrong, your program says you win -- so there are a whole lot of inputs that are winning. The pattern you noticed is just a coincidence.

'CONCAT' is not a recognized built-in function name. Update transaction with Inner Join


By : mutotu
Date : March 29 2020, 07:55 AM
I hope this helps you . I set up a query to get to update on a table field(sql server) by concatenating other fields. , Why not simply concatenate using +
code :
UPDATE O
SET O.COD_MODEL_ORDER = M.COD_MODEL + '-' + O.COD_ORDER
FROM ORDER O
INNER JOIN MODEL M ON M.ID_MODEL = O.ID_MODEL
WHERE ID_ORDER = 5;

The term 'update-database' is not recognized as the name of a cmdlet, function, script file, or operable program. Check


By : rene
Date : March 29 2020, 07:55 AM
I wish did fix the issue. Sometimes this error occurred because of EF nuget.
Please try to reinstall or update EntityFramework nuget package.
code :
Install-Package EntityFramework -Version 6.1.3

Using pythons open function for .png Image


By : liyuray
Date : March 29 2020, 07:55 AM
will be helpful for those in need To open images, i suggest you to use opencv or PIL module of python.
Using OpenCV:
code :
import cv2
img = cv2.imread('here.png',0)
from PIL import Image
im = Image.open("here.png")
im.show()
img =open('here.png','rb').read()
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