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Python - write() versus writelines() and concatenated strings
...e character '\n' as glue. It is more efficient than using the + operator.
Starting from the same lines sequence, ending up with the same output, but using writelines():
lines = ['line1', 'line2']
with open('filename.txt', 'w') as f:
f.writelines("%s\n" % l for l in lines)
This makes use of a...
How do I find and view a TFS changeset by comment text?
... Aha, yes. I've used it before but could not remember how I started it, lol. You just start the Visual Studio Command Prompt and execute the command @Maarten mentioned above. Of course, you would install Power Tools first!
– strider
Aug 25 '14 at...
Net::SMTPAuthenticationError when sending email from Rails app (on staging environment)
... for 10 minutes for registering new apps).
After this my app in production started sending emails ;)
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how to implement regions/code collapse in javascript
... EnvDTE.TextSelection = DTE.ActiveDocument.Selection
Const REGION_START As String = "//#region"
Const REGION_END As String = "//#endregion"
selection.SelectAll()
Dim text As String = selection.Text
selection.StartOfDocument(True)
Dim startIndex As I...
Xcode 4 hangs at “Attaching to (app name)”
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This doesn't fix the error for me. Using XCode 4.0.1, I start a new project, build and run it without modifying the default template - works. Without quitting the simulator, I make some changes, run again, still works. Then I quit XCode and the simulator, next time I run - hangs a...
Make var_dump look pretty
...Cadaver answers.
I have included a javascript script which will delete php starting and closing tag.
We will have clean more pretty dump.
May be somebody like this too.
function dd($data){
highlight_string("<?php\n " . var_export($data, true) . "?>");
echo '<script>document.getElem...
How do I preview emails in Rails?
...
Daniel's answer is a good start, but if your email templates contain any dynamic data, it won't work. E.g. suppose your email is an order receipt and within it you print out @order.total_price - using the previous method the @order variable will be ni...
Intro to GPU programming [closed]
...
CUDA is an excellent framework to start with. It lets you write GPGPU kernels in C. The compiler will produce GPU microcode from your code and send everything that runs on the CPU to your regular compiler. It is NVIDIA only though and only works on 8-series c...
Batch script loop
...
for /l is your friend:
for /l %x in (1, 1, 100) do echo %x
Starts at 1, steps by one, and finishes at 100.
Use two %s if it's in a batch file
for /l %%x in (1, 1, 100) do echo %%x
(which is one of the things I really really hate about windows scripting)
If you have multiple comm...
What is the meaning of single and double underscore before an object name?
...al use" indicator. E.g. from M import * does not import objects whose name starts with an underscore.
Double Underscore (Name Mangling)
From the Python docs:
Any identifier of the form __spam (at least two leading underscores, at most one trailing underscore) is textually replaced with _class...