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How to pass arguments to a Button command in Tkinter?
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Example GUI:
Let's say I have the GUI:
import tkinter as tk
root = tk.Tk()
btn = tk.Button(root, text="Press")
btn.pack()
root.mainloop()
What Happens When a Button Is Pressed
See that when btn is pressed it calls its own function which is very similar to button_press_handle in t...
AWS ssh access 'Permission denied (publickey)' issue [closed]
...ec2-user instead of ubuntu.
Most EC2 Linux images I've used only have the root user created by default.
See also: http://www.youtube.com/watch?v=WBro0TEAd7g
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ASP.NET 2.0 - How to use app_offline.htm
I've read about the app_offline.htm file which can be placed within the root of a .NET 2.0 application which will in essence shut down the application and disable any other pages from being requested.
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CocoaPods Errors on Project Build
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However, when I go to the target's User-Defined Build Settings, the PODS_ROOT entry is either entirely missing or is empty for one or more configurations. Which causes the following error on build:
The simplest fix is to close the project in Xcode and reopen it.
If you go to the target's Build...
Update all values of a column to lowercase
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See http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_lower
UPDATE table_name SET tag = LOWER(tag)
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马云：互联网时代已经过去20年，接下来30年才是关键 - 资讯 - 清泛网 - 专...
...正的机会。所谓现在提出互联网+，还有一个就是互联网如何变成一种应用。未来的时代，更多的靠知识，更多靠的是你的勇气，更多靠你的坚韧不拔去努力。所以我觉得，未来的30年，我们这些人，肯定不行了，那时候我是后来...
How do I create a URL shortener?
...Take an auto-generated, unique numerical key (the auto-incremented id of a MySQL table for example).
For this example, I will use 12510 (125 with a base of 10).
Now you have to convert 12510 to X62 (base 62).
12510 = 2×621 + 1×620 = [2,1]
This requires the use of integer division and modulo. A ...
Absolute vs relative URLs
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@Mike why would you call root-relative URLs ‘absolute’?
– törzsmókus
Mar 22 '15 at 8:51
5
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How to use glob() to find files recursively?
...ch against a simple expression:
import fnmatch
import os
matches = []
for root, dirnames, filenames in os.walk('src'):
for filename in fnmatch.filter(filenames, '*.c'):
matches.append(os.path.join(root, filename))
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How to do an update + join in PostgreSQL?
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coming from mysql it's unintuitive that the same join used for select won't also update just by adding a set phrase :( still - the syntax for this is probably easier for a newcomer to sql to master.
– WEBjuju
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