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Can Flask have optional URL parameters?

... show(user_id, username): pass But I guess that you want to write a single route and mark username as optional? If that's the case, I don't think it's possible. share | improve this answer ...
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Is there a difference between “==” and “is”?

... is will return True if two variables point to the same object, == if the objects referred to by the variables are equal. >>> a = [1, 2, 3] >>> b = a >>> b is a True >>> b == a True # Make a new copy of list `a` via the slice ...
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Stacked Tabs in Bootstrap 3

I am trying to implement left-aligned stacked tabs using the Tab jquery plugin in Bootstrap 3 where tabs are rendered vertically to the left of tab content, rather than on top. When I try the following; ...
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Git undo local branch delete

... You can use git reflog to find the SHA1 of the last commit of the branch. From that point, you can recreate a branch using git branch branchName <sha1> Edit: As @seagullJS says, the branch -D command tells you the sha1, so if you haven't close...
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UI Terminology: Logon vs Login [closed]

I am crafting an application and cannot decide whether to use the terms Login/out or Logon/off . Is there a more correct option between these two? Should I use something else entirely (like "Sign on/off"). ...
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How to set conditional breakpoints in Visual Studio?

Is there an easy way to set conditional breakpoints in Visual Studio? 13 Answers 13 ...
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JavaScript hide/show element

How could I hide the 'Edit'-link after I press it? and also can I hide the "lorem ipsum" text when I press edit? 11 Answers...
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Is this the right way to clean-up Fragment back stack when leaving a deeply nested stack?

I'm using the Android Compatibility library to implement fragments and have extended the layout sample so that a fragment contains a button which fires off another fragment. ...
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Convert JSON string to dict using Python

I'm a little bit confused with JSON in Python. To me, it seems like a dictionary, and for that reason I'm trying to do that: ...
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What are 'get' and 'set' in Swift?

I'm learning Swift and I'm reading The Swift Programming Language from Apple, I have no Objective C background (only PHP, JS, and other but no Obj C) ...