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How to install psycopg2 with “pip” on Python?
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@I159 - The *-dev packages contain the files necessary to compile an application from source that uses the functions provided by the library (as psycopg2 uses the libpq and python libraries, among others).
– joar
Dec 19 '11 a...
Java: How to get input from System.console()
...the BufferedInputStream makes less native calls to the OS to read from the file. Thanks
– Learner
Jan 1 '16 at 0:21
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Secret copy to clipboard JavaScript function in Chrome and Firefox?
...definitely not a browser function, and cannot be used in normal JavaScript files. The following functions also seems to work in the JavaScript console, after playing around with it a bit:
clear()
profile()
Running these in the Chrome console reveals the source behind these functions in the W...
How to add onload event to a div element
...Is this an anti-pattern, in that it's better to keep all js inside its own file? Is there a way to selectively run js when certain elements are loaded into the document?
– Ryan Walton
Dec 17 '15 at 20:51
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How to set my default shell on Mac?
... is a valid shell. To do that, add this path to the end of the /etc/shells file.
Once you've done this, you can change the shell by going to System Preferences -> Accounts. Click on the Lock to allow changes. Right-click on the account, and choose "Advanced Options...". In the "Login shell" fiel...
Removing white space around a saved image in matplotlib
...ne of a couple of aerofoil sections — without white margins — to a PDF file.
(Note that I used matplotlib inside an IPython notebook, with the -pylab flag.)
plt.gca().set_axis_off()
plt.subplots_adjust(top = 1, bottom = 0, right = 1, left = 0,
hspace = 0, wspace = 0)
plt.margins(0...
HTTP Error 500.19 and error code : 0x80070021
..., and even it if can detect errors during the operation (and produce a log file), it worked for me!
– knocte
Jan 13 '15 at 19:53
2
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TypeScript: casting HTMLElement
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As of TypeScript 0.9 the lib.d.ts file uses specialized overload signatures that return the correct types for calls to getElementsByTagName.
This means you no longer need to use type assertions to change the type:
// No type assertions needed
var script: HT...
Java: Difference between PrintStream and PrintWriter
... moving from one platform to another, especially if you are generating the file on one platform and consuming it on another.
With a Writer, you typically specify the encoding to use, avoiding any platform dependencies.
Why bother having a PrintStream in the JDK, since the primary intent is to writ...
How to get the current URL within a Django template?
...ntext
def index(request):
return render_to_response(
'user/profile.html',
{ 'title': 'User profile' },
context_instance=RequestContext(request)
)
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