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

... I finally figured it out working on another problem. The problem was 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 ...
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What is the difference between char s[] and char *s?

...puts the literal string in read-only memory and copies the string to newly allocated memory on the stack. Thus making s[0] = 'J'; legal. share | improve this answer | foll...
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Why does running the Flask dev server run itself twice?

...g is the library that supplies Flask with the development server when you call app.run(). See the restart_with_reloader() function code; your script is run again with subprocess.call(). If you set use_reloader to False you'll see the behaviour go away, but then you also lose the reloading function...
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What is an 'endpoint' in Flask?

...erkzeug library) is to map URL paths to some logic that you will run (typically, the "view function"). Your basic view is defined like this: @app.route('/greeting/<name>') def give_greeting(name): return 'Hello, {0}!'.format(name) Note that the function you referred to (add_url_rule) ac...
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class

...lass << foo syntax opens up foo's singleton class (eigenclass). This allows you to specialise the behaviour of methods called on that specific object. a = 'foo' class << a def inspect '"bar"' end end a.inspect # => "bar" a = 'foo' # new object, new singleton class a.insp...
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How do I use vimdiff to resolve a git merge conflict?

... All four buffers provide a different view of the same file. The top left buffer (LOCAL) is how the file looked in your target branch (what you are merging into). The top right buffer (REMOTE) is how the file looked in your so...
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Add custom messages in assert?

...rk; they’re compile-time constants and their use in this context is trivially optimized away. There is no runtime cost. – zneak Aug 9 '19 at 8:46 ...
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How to check if one DateTime is greater than the other in C#

...swered Sep 18 '08 at 19:17 Jon GallowayJon Galloway 49k2424 gold badges118118 silver badges191191 bronze badges ...
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How do I translate an ISO 8601 datetime string into a Python datetime object? [duplicate]

... I prefer using the dateutil library for timezone handling and generally solid date parsing. If you were to get an ISO 8601 string like: 2010-05-08T23:41:54.000Z you'd have a fun time parsing that with strptime, especially if you didn't know up front whether or not the timezone was included. ...
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Cannot kill Python script with Ctrl-C

...you can't do anything with it after it exits. The process will finish when all non-daemon threads have finished; parent-child relationships don't come into that. – Thomas K Dec 6 '13 at 22:22 ...