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How can I create a copy of an object in Python?
...; tuple_copy_attempt = a_tuple.copy()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'tuple' object has no attribute 'copy'
Tuples don't even have a copy method, so let's try it with a slice:
>>> tuple_copy_attempt = a_tuple[:]
But we ...
How to find the kth smallest element in the union of two sorted arrays?
...not by browser;
// for running/debugging in browser, put utils.js and this file in <script> elements,
if (typeof require === "function") require("./utils.js");
// Find K largest numbers in two sorted arrays.
function k_largest(a, b, c, k) {
var sa = a.length;
var sb = b.length;
if...
What's the fundamental difference between MFC and ATL?
...ts, documents (if you like and/or use that pattern), and compound document files. WTL has its share of cool features, but MFC is the clear feature champ. Both environments support framed main window architectures (frame window with separate view window), SDI and MDI applications, split windows, dial...
Difference between variable declaration syntaxes in Javascript (including global variables)?
... mentioned there is an IE bug with var a = foo only declaring a global for file scope. This is an issue with IE's notorious broken interpreter. This bug does sound familiar so it's probably true.
So stick to window.globalName = someLocalpointer
...
What is the correct way to create a single-instance WPF application?
...othing / personal feelings) that it is still better to open a new app when file assoc is selected. But I understand better the question asked now. Thanks !
– Eric Ouellet
Dec 6 '13 at 16:07
...
Greenlet Vs. Threads
... @MattJoiner I have the below function which reads the huge file to calculate the md5 sum. how can i use gevent in this case to read faster import hashlib def checksum_md5(filename): md5 = hashlib.md5() with open(filename,'rb') as f: for chunk in iter(lambda: f.read...
Many-to-many relationship with the same model in rails?
...ociations from irb, and looking at the SQL that Rails generates in the log file. You'll find something like the following:
SELECT * FROM "posts"
INNER JOIN "post_connections" ON "posts".id = "post_connections".post_b_id
WHERE ("post_connections".post_a_id = 1 )
To make the association bi-directio...
What are bitwise shift (bit-shift) operators and how do they work?
... programming. If you read a specification for a device or even some binary file formats, you will see bytes, words, and dwords, broken up into non-byte aligned bitfields, which contain various values of interest. Accessing these bit-fields for reading/writing is the most common usage.
A simple real...
java.sql.SQLException: - ORA-01000: maximum open cursors exceeded
...not used it) is log4jdbc. You then need to do some simple analysis on this file to see which executes don't have a corresponding close. Counting the open and closes should highlight if there is a potential problem
Monitoring the database. Monitor your running application using the tools such as th...
How are people unit testing with Entity Framework 6, should you bother?
...rk into the Test Project.
2- Put the connection string into the app.config file of Test Project.
3- Reference the dll System.Transactions in Test Project.
The unique side effect is that identity seed will increment when trying to insert, even when the transaction is aborted. But since the tests are...