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Fast check for NaN in NumPy
...stion, since it builds a boolean array of shape X.shape , which is potentially gigantic.
7 Answers
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One Activity and all other Fragments [closed]
I am thinking of implementing one screen with Activity and all other sreens with Fragments and managing all the fragments thru the activity .
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Does Python have a ternary conditional operator?
...s ignored, or else when b is evaluated and returned but a is ignored.
This allows short-circuiting because when condition is true only a is evaluated and b is not evaluated at all, but when condition is false only b is evaluated and a is not evaluated at all.
For example:
>>> 'true' if True...
Git: Create a branch from unstaged/uncommitted changes on master
...tatus still show your local changes, although you are on master.
If you really want to discard the local changes, you have to force the checkout with -f.
git checkout master -f
Since your changes were never committed, you'd lose them.
Try to get back to your branch, commit your changes, then ch...
QLabel: set color of text and background
... documentation states :
Using a QPalette isn't guaranteed to work for all styles, because style authors are restricted by the different platforms' guidelines and by the native theme engine.
But you could do something like this :
QPalette palette = ui->pLabel->palette();
palette.setCo...
ORA-12505, TNS:listener does not currently know of SID given in connect descriptor
I have installed Oracle 11g Express Edition Release 2 in my windows 7 64 bit OS and tried to execute JDBC program, then I got the following error:
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How to allow keyboard focus of links in Firefox?
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In System Preferences → Keyboard, in the Shortcuts pane, check the “all controls” radio at the bottom.
In Firefox, type "about:config" in the URL bar. There is no accessibility.tabfocus preference on the mac, so you'll have to make one. Right click in the window, create a new "integer" pref...
ssh “permissions are too open” error
... 400 is too low as that makes it non-writable by your own user. 600 is actually recommended as it allows owner read-write not just read.
– jfreak53
Jul 9 '13 at 23:55
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How do I unlock a SQLite database?
... that page is either incorrect or out-of-date: I have a process doing literally nothing but a single INSERT that is getting that locked message: it is not possible for this process to have caused the lock. The problem was in another process talking to the same DB.
– Dan James...
Javascript Thousand Separator / string format [duplicate]
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Really Really Appreciate It // But How Can i Convert that string (with commas) to a number ?
– LostLord
Sep 20 '10 at 16:51
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