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How to pass a user defined argument in scrapy spider
I am trying to pass a user defined argument to a scrapy's spider. Can anyone suggest on how to do that?
5 Answers
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String literals and escape characters in postgresql
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Partially. The text is inserted, but the warning is still generated.
I found a discussion that indicated the text needed to be preceded with 'E', as such:
insert into EscapeTest (text) values (E'This is the first part \n And this is the second');
This suppressed the warning, but the text was ...
Why functional languages? [closed]
I see a lot of talk on here about functional languages and stuff. Why would you use one over a "traditional" language? What do they do better? What are they worse at? What's the ideal functional programming application?
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How to create a UIView bounce animation?
I have the following CATransition for a UIView called finalScoreView , which makes it enter the screen from the top:
4 Ans...
How to merge a specific commit in Git
I have forked a branch from a repository in GitHub and committed something specific to me. Now I found the original repository had a good feature which was at HEAD .
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How do you represent a graph in Haskell?
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I also find it awkward to try to represent data structures with cycles in a pure language. It's the cycles that are really the problem; because values can be shared any ADT that can contain a member of the type (including lists and ...
Is there a way to chain multiple value converters in XAML?
... I need to show an integer value, bound to a property on my data context, after putting it through two separate conversions:
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App Inventor 2 中的响应式设计 · App Inventor 2 中文网
...sion 1.0: August 15, 2015
Responsive Design in App Inventor
Specifying sizes as percentages
Fixed vs. responsive sizing
Detailed example
Special circumstances
Limitation: Drawing and animation
Responsive design and Google Play
One tric...
SQlite Getting nearest locations (with latitude and longitude)
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1) At first filter your SQLite data with a good approximation and decrease amount of data that you need to evaluate in your java code. Use the following procedure for this purpose:
To have a deterministic threshold and more accura...
How can I mock dependencies for unit testing in RequireJS?
...MD module I want to test, but I want to mock out its dependencies instead of loading the actual dependencies. I am using requirejs, and the code for my module looks something like this:
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