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HTTP error 403 in Python 3 Web Scraping
....3.0, it's easily detected). Try setting a known browser user agent with:
from urllib.request import Request, urlopen
req = Request('http://www.cmegroup.com/trading/products/#sortField=oi&sortAsc=false&venues=3&page=1&cleared=1&group=1', headers={'User-Agent': 'Mozilla/5.0'})
w...
Checking if a string is empty or null in Java [duplicate]
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@DavidS If you remove str == null from code and str variable is 'null', then it will throw 'NullPointerException'.
– Alfaz Jikani
Jan 17 at 13:18
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Make an existing Git branch track a remote branch?
... the above commands will cause local branch foo to track remote branch foo from remote upstream.
The old (1.7.x) syntax is deprecated in favor of the new (1.8+) syntax. The new syntax is intended to be more intuitive and easier to remember.
Defining an upstream branch will fail when run against new...
What's the difference between using CGFloat and float?
...a double on 64-bit systems. However, the decision to do that was inherited from OS X, where it was made based on the performance characteristics of early PowerPC CPUs. In other words, you should not think that float is for 32-bit CPUs and double is for 64-bit CPUs. (I believe, Apple's ARM processors...
Run cURL commands from Windows console
Is there a way to install cURL in Windows in order to run cURL commands from the command prompt?
21 Answers
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HTML5 dragleave fired when hovering a child element
...ragEnterTarget is set, I ignore further dragenter events, because they are from children. In all dragleave events I check dragEnterTarget === event.target. If this is false the event will be ignored as it was fired by a child. If this is true I reset dragEnterTarget to undefined.
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How do I run msbuild from the command line using Windows SDK 7.1?
... 4.0 support on our CI server. I've installed .NET 4.0, and the .NET tools from the Windows 7.1 SDK.
7 Answers
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Nullable type as a generic parameter possible?
... original code – remove the where constraint, and change the last return from return null to return default(T). This way you can return whatever type you want.
By the way, you can avoid the use of is by changing your if statement to if (columnValue != DBNull.Value).
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Can you do a partial checkout with Subversion?
... introduces sparse checkouts which may be something you might find useful. From the documentation:
... sparse directories (or shallow checkouts) ... allows you to easily check out a working copy—or a portion of a working copy—more shallowly than full recursion, with the freedom to bring in p...
Rotating a point about another point (2D)
...inate system on the screen is left-handed, i.e. the x coordinate increases from left to right and the y coordinate increases from top to bottom. The origin, O(0, 0) is at the upper left corner of the screen.
A clockwise rotation around the origin of a point with coordinates (x, y) is given by the...