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Determining Whether a Directory is Writeable
...try:
filehandle = open( filepath, 'w' )
except IOError:
sys.exit( 'Unable to write to file ' + filepath )
filehandle.write("I am writing this text to the file\n")
This attempts to open a filehandle for writing, and exits with an error if the file specified cannot be written to: This is fa...
What is the best way to programmatically detect porn images? [closed]
...rdinate the use of human intelligence to perform tasks which computers are unable to do."
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edited Aug 28 '13 at 16:22
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How to copy commits from one branch to another?
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As for why you might be unable to merge - Git merging does not play nice with git-svn. To copy a series of commits from one SVN branch to another, I ended up cherry-picking them and then performing an interactive rebase/reword to remove the incorrec...
How to find an element by matching exact text of the element in Capybara
...:
find("a", :text => "berlin")
# => Capybara::ElementNotFound:
# Unable to find css "a" with text "berlin"
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How to change column datatype from character to numeric in PostgreSQL 8.4
...i deleted the foreign key constraint , changed the datatype but after that unable to add the FK. Getting the following error ERROR: insert or update on table "invoices" violates foreign key constraint "invoice_presale_fk" DETAIL: Key (sale,cpf_cnpj)=(4,05943560000101) is not present in table "pr...
Windows 7 SDK installation failure
I seem to be completely unable to install the Windows 7 SDK onto my machine, and the only solution I've found on the web is to make a swathe of registry changes. I've done this - still no success.
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Difference between scaling horizontally and vertically for databases [closed]
...an it earlier could.
When you realise your system is getting slow and is unable to handle the current number of requests, you need to scale the system.
This provides you with two options. Either you increase the resources in the server which you are using currently, i.e, increase the amount of R...
Why are Python's 'private' methods not actually private?
... API has a bug, and you have figured out what goes wrong, you may still be unable to work around it because the needed method is private. In Python the attitude is: "sure". If you think you understand the situation, perhaps you have even read it, then all we can say is "good luck!".
Remember, encap...
Launch custom android application from android browser
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Anyone who, like me, is unable to get this scheme work, needs to add android:exported="true" to their Activity in manifest. Check this answer stackoverflow.com/a/13044911/1276636
– Sufian
Aug 27 '14 at 6:19
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How to check for an active Internet connection on iOS or macOS?
...chable")
}
do {
try reachability.startNotifier()
} catch {
print("Unable to start notifier")
}
Objective-C
1) Add SystemConfiguration framework to the project but don't worry about including it anywhere
2) Add Tony Million's version of Reachability.h and Reachability.m to the project ...