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TypeError: unhashable type: 'dict'
...ntation of it like this:
>>> key = frozenset(dict_key.items())
Now you may use key as a key in a dict or set:
>>> some_dict[key] = True
>>> some_dict
{frozenset([('a', 'b')]): True}
Of course you need to repeat the exercise whenever you want to look up something usin...
Parse string to DateTime in C#
...lines before so that is okay here.
Update: .ToDate() (without parameters) now defaults to all common date/time patterns of the thread's current culture.
Note that we need the result and dt together, because TryParseExact does not allow to use DateTime?, which we intend to return.
In C# Version 7 y...
Replace None with NaN in pandas dataframe
...
pd.np.nan now gives FutureWarning: The pandas.np module is deprecated and will be removed from pandas in a future version. Import numpy directly instead.
– Alex Povel
Jun 22 at 17:14
...
How to pinch out in iOS simulator when map view is only a portion of the screen?
... right using two fingers from each hand but I have it working like a charm now.
– Christopher
Jul 25 '12 at 22:07
Glad...
Show Youtube video source into HTML5 video tag?
...6616c"></video>
Note there seems to some expire stuff. I don't know how long the src string will work.
Still testing myself.
Edit (July 28, 2011): Note that this video src is specific to the browser you use to retrieve the page source. I think Youtube generates this HTML dynamically (a...
Red black tree over avl tree
... balance factor at each node. This takes O(N) extra space. However, if we know that the keys that will be inserted in the tree will always be greater than zero, we can use the sign bit of the keys to store the colour information of a red-black tree. Thus, in such cases red-black tree takes no extra ...
How to make/get a multi size .ico file? [closed]
...s open apps are shown when using Alt-Tab). Once I have that .ico file, I know how to use it within my widget toolkit to get this effect, but I don't know how to get it.
...
How to search and replace globally, starting from the cursor position and wrapping around the end of
... is the key-- continue editing the paragraph. Your approach "Press y,y,y, now press q. Now you start searching at the first line of the paragraph. Press q again to quit. Now go back to where you were before, to continue editing. Ok, g;. So, basically: yyyqq... become confused... g; (or u^R) My met...
Eclipse: Referencing log4j.dtd in log4j.xml
I've been using log4j for quite a while now and I usually use this at the top of the log4j.xml (probably just like many others and according to Google this is the way to do it):
...
How can I see the SQL generated by Sequelize.js?
...lease note that find* was refactored and uses only one options object from now on.. For the latest sequelize version (4) if you want to have the result for only one command:
User.findAll({where: {...}, logging: console.log})
...