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Arduino Sketch upload issue - avrdude: stk500_recv(): programmer is not responding
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I had this problem with a Crowduino, running the Arduino IDE on OS X. The solution for me was to switch on verbose output during upload (in the Arduino IDE preferences pane).
Then, when uploading, you can see AVRDUDE sending three packets avrdude: Send: 0 [30] [20] (with corresponding...
How to redirect output to a file and stdout
...he OP only wanted stdout, since he mentioned stdout in the subject of the post.
– Zoredache
Oct 1 '14 at 1:30
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Objective-C class -> string like: [NSArray className] -> @“NSArray”
...ed somewhere in the Objective-C runtime (the internals of the runtime are mostly hidden from the application and exposed only through a few API functions). Each class object (e.g. [NSArray class]) is actually a struct. The struct contains a lot of information about the class, including its name, the...
Firefox Web Console Disabled?
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@BorisZbarsky the Firebug clause is almost an answer in itself. Could you include it in the answer proper?
– Barney
Mar 24 '14 at 9:55
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Smallest data URI image possible for a transparent image
...ample, if you have an <img> and you use the tiniest transparent GIF possible, it works fine, however, if you then want your transparent GIF to have a background-image, then this is impossible. For some reason, some GIFs such as the following prevent CSS backgrounds (in some browsers).
Shorte...
What is copy-on-write?
... also used in maintenance of instant snapshot on database servers like Microsoft SQL Server 2005. Instant snapshots preserve a static view of a database by storing a pre-modification copy of data when underlaying data are updated. Instant snapshots are used for testing uses or moment-dependent repor...
How to get a reference to a module inside the module itself?
...string; thus a inspect.getabsfile(func.__module__) fails with "TypeError: 'os' is not a module, class, method, function, traceback, frame, or code object"; while inspect.getabsfile(sys.modules[o.__module__]) seems to pass.
– sdaau
Apr 9 '13 at 10:27
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How to add a spinner icon to button when it's in the Loading state?
...not working for Safari 6.0.5 (7536.30.1), Chrome 31.0.1604.0 canary on Mac OS X.
– Burak Erdem
Aug 21 '13 at 21:01
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SecItemAdd and SecItemCopyMatching returns error code -34018 (errSecMissingEntitlement)
...ny idea what causes this and how to fix it? I'm using Xcode 5 and running iOS 7.0.4 on device.
20 Answers
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bash: mkvirtualenv: command not found
After following the instructions on Doug Hellman's virtualenvwrapper post , I still could not fire up a test environment.
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