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Why am I seeing “TypeError: string indices must be integers”?
...;>> my_string[my_tuple]
TypeError: string indices must be integers
Now, at least, the error message makes sense.
Solution
We need to replace the comma , with a colon : to separate the two integers correctly:
>>> my_string = "hello world"
>>> my_string[0:5]
'hello'
A cl...
Search for selection in vim
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Use q / instead of just /. (Same with q :). Now you can VIM-edit through your command and search history! (Try Ctrl-N and Ctrl-P sometime).
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Embed git commit hash in a .Net dll
...on. The Microsoft.NET.Sdk (meaning you must be using an sdk-style project) now includes support for adding the commit hash to both the assembly informational version as well as to the nuget package metadata, if some conditions are met:
The <SourceRevisionId> property must be defined. This can...
When splitting an empty string in Python, why does split() return an empty list while split('\n') re
...mizing the one for no arguments more than the one with arguments; I don't know.
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How to throw a C++ exception
...pretty important - because it highlights the fact it is a temporary object now - so modification is useless.
– Adrian Cornish
Dec 12 '11 at 21:03
2
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Best approach to remove time part of datetime in SQL Server
...imple-talk.com/sql/t-sql-programming/ten-common-sql-programming-mistakes/
Now, this does have an example of later SQL Server optimiser versions managing CAST to date correctly, but generally it will be a bad idea ...
Edit, Sep 2018, for datetime2
DECLARE @datetime2value datetime2 = '02180912 11:4...
Rails: Default sort order for a rails model?
...atenating them with periods between them, so with the above scopes you can now use Book.published.confirmed.
With this method, the query is not actually executed until actual results are needed (lazy evaluation), so 7 scopes could be chained together but only resulting in 1 actual database query,...
What is the optimal Jewish toenail cutting algorithm?
...rd toe missing. This causes issues if, for example, removal of the 3rd toe now causes toes 2 and 4 to be considered sequential.
– cdeszaq
Mar 7 '12 at 19:56
2
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What does the exclamation mark mean in a Haskell declaration?
...ly Just (5+5), leaving the thunk inside unevaluated. This is important to know, though I think that all the implications of this go rather beyond the scope of this question.
You can annotate function arguments in the same way, if you enable the BangPatterns language extension:
f x !y = x*y
f (1+...
How do I calculate a point on a circle’s circumference?
...
I've been trying to derive this equation for an hour now. Thanks. Who know the trig identities you learned in high school would be so helpful.
– Isioma Nnodum
May 28 '14 at 22:37
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