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Detect permission of camera in iOS
...
A possibly useful tip – if you are testing code that uses this, you can't merely delete your App from the testing device and then re-instal. Doing this will not cause iOS to reissue the request to the user! What's worked for me though is to change the Bundle I...
How can I check if multiplying two numbers in Java will cause an overflow?
...people who really understand machine arithmetic in Java and which has been tested by lots of people. Don't attempt to write your own or use any of the half-baked untested code posted in the other answers!
– Rich
Jan 21 '14 at 11:22
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What's the difference between globals(), locals(), and vars()?
...nary, and changes to the dictionary are reflected in the namespace:
class Test(object):
a = 'one'
b = 'two'
huh = locals()
c = 'three'
huh['d'] = 'four'
print huh
gives us:
{
'a': 'one',
'b': 'two',
'c': 'three',
'd': 'four',
'huh': {...},
'__module__': '__mai...
Is there an alternative to bastard injection? (AKA poor man's injection via default constructor)
...ad of a config file? What if you want to vary configuration values in unit tests? What if you want to make the configuration value configurable via the UI? ...FWIW, I've expanded on the DI friendly library recommendations here, including more code examples.
– Mark Seemann
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Pip freeze vs. pip list
...ere, django==1.4.2 implies install django version 1.4.2 (even though the latest is 1.6.x).
If you do not specify ==1.4.2, the latest version available would be installed.
You can read more in "Virtualenv and pip Basics",
and the official "Requirements File Format" documentation.
...
UnboundLocalError on local variable when reassigned after first use
...f you want to modify it, you have to use the global keyword. Try changing test() to this:
def test():
global c
print(a)
print(b)
print(c) # (A)
c+=1 # (B)
Also, the reason you are getting this error is because you can also declare a new variable inside that function...
How can I parse a JSON file with PHP? [duplicate]
...apsuled in OOP, so you have better reuse and you can easily mock it in UnitTests plus you can stack Iterators with other iterators doing different things, like limiting, caching, filtering and so on.. in addition to any custom iterators you might want to create.
– Gordon
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comparing sbt and Gradle [closed]
...a revision which can be given as a fixed one (1.5.2, for instance) or as latest (or dynamic) one.
See "Ivy Dependency"
That means the "-SNAPSHOT" mechanism support can be problematic, even though Mark Harrah details in this thread:
It is true the cache can get confused, but it is not true that Ivy...
Alarm Manager Example
...ntService::class.java)
intent.action = MyIntentService.ACTION_SEND_TEST_MESSAGE
intent.putExtra(MyIntentService.EXTRA_MESSAGE, message)
pendingIntent = PendingIntent.getService(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT)
alarmManager.set(AlarmManager.RTC_W...
Character reading from file in Python
...iles in update mode, allowing both reading and writing:
with codecs.open('test', encoding='utf-8', mode='w+') as f:
f.write(u'\u4500 blah blah blah\n')
f.seek(0)
print repr(f.readline()[:1])
EDIT: I'm assuming that your intended goal is just to be able to read the file properly into a...