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AttributeError: 'module' object has no attribute 'tests'

...as that my test couldn't find an import. It looks like you get the above error if your test fails to import. This makes sense because the test suite can't import a broken test. At least I think this is what is going on because I fixed the import within my test file and sure enough it started worki...
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How to get the first five character of a String

...g for length before hand. The other way is to use String.Substring with error checking like: string firstFivCharWithSubString = !String.IsNullOrWhiteSpace(yourStringVariable) && yourStringVariable.Length >= 5 ? yourStringVariable.Substring(0, 5) : yourStringVariable; ...
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[A]System.Web.WebPages.Razor.Configuration.HostSection cannot be cast to… web.config issue

I am getting the following error: 6 Answers 6 ...
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Async image loading from url inside a UITableView cell - image changes to wrong image while scrollin

...onHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) { if (data) { UIImage *image = [UIImage imageWithData:data]; if (image) { dispatch_async(dispatch_get_main_queue(), ^{ MyCell *updat...
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What is the use of static variable in C#? When to use it? Why can't I declare the static variable in

...able for all instances, the code this.permament will result in compilation errors because it can be recalled that this.variablename refers to the instance variable name. Thus, static variables are to be accessed directly, as indicated in the code. ...
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How to install Xcode Command Line Tools

... "Xcode.SDKs" = ( ); }; version = "1.1.1"; }. Error: Error Domain=NSCocoaErrorDomain Code=3840 "The data couldn’t be read because it has been corrupted." (Encountered unknown ampersand-escape sequence at line 18) UserInfo=0x401bc8e60 {NSDebugDescription=Encountered unk...
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_csv.Error: field larger than field limit (131072)

...Update As Geoff pointed out, the code above might result in the following error: OverflowError: Python int too large to convert to C long. To circumvent this, you could use the following quick and dirty code (which should work on every system with Python 2 and Python 3): import sys import csv max...
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Why does .NET use banker's rounding as default?

...ng in the database, and sometimes in .net, you will have strange, one cent errors that will take you weeks to figure out. – chris Mar 6 '09 at 19:10 59 ...
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Cross-thread operation not valid: Control 'textBox1' accessed from a thread other than the thread it

...ther thread context than the UI thread, and that's the reason you see this error. To remedy this, you will have to use a dispatcher as descibed in the MSDN article: How to: Make Thread-Safe Calls to Windows Forms Controls So instead of setting the text property directly in the serialport1_DataReceiv...
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Search code inside a Github project

...you forget to put the right search selector (here "Code"), you will get an error message: "Invalid search query. Try quoting it." the error message doesn't help you at all. No amount of "quoting it" will get you out of this error. once you get that error message, you don't get the sections re...