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Get MD5 hash of big files in Python
...(rootdir, filename, blocksize=2**20):
m = hashlib.md5()
with open( os.path.join(rootdir, filename) , "rb" ) as f:
while True:
buf = f.read(blocksize)
if not buf:
break
m.update( buf )
return m.hexdigest()
The update above was ...
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...
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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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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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...
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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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
16
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Create a Path from String in Java7
... I suggest to use File.separarator instead of taking care of the current OS. E.g. "/tmp/foo" is File.separator+"tmp"+File.separator+"foo"
– mat_boy
Sep 12 '13 at 7:20
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svn : how to create a branch from certain revision of trunk
...tart of the date
'HEAD' latest in repository
'BASE' base rev of item's working copy
'COMMITTED' last commit at or before BASE
'PREV' revision just before...