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How to pass a user defined argument in scrapy spider
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Alternatively we can use ScrapyD which expose an API where we can pass the start_url and spider name. ScrapyD has api's to stop/start/status/list the spiders.
pip install scrapyd scrapyd-deploy
scrapyd
scrapyd-deploy local -p default
scrapyd-deploy will deploy the spider...
Best approach for designing F# libraries for use from both F# and C#
...gle library. The best way to do this is to have normal F# (or normal .NET) API and then provide wrappers for natural use in the other style. The wrappers can be in a separate namespace (like MyLibrary.FSharp and MyLibrary).
In your example, you could leave the F# implementation in MyLibrary.FSharp...
What HTTP status response code should I use if the request is missing a required parameter?
...t that this spec is for WebDAV, not core HTTP. But some popular non-WebDAV APIs are using 422 anyway, for lack of a better status code (see this).
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Post Build exited with code 1
...4291,5): error MSB3073: The command "copy <http://1.2.3.4/job/BLAHv2/ws/Api/bin/BLAH.Common.xml> <http://1.2.3.4/job/BLAHv2/ws/Api/App_Data/BLAH.Common.xml"> exited with code 1. [<http://1.2.3.4/job/BLAHv2/ws/Api/Api.csproj]>
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Node.js Unit Testing [closed]
... (you can plug-in your own). It can run sync or async and it has a concise API.
I will give it a try and report back...
EDIT:
After an incredible amount of time dedicated to other projects I finally came back to a Javascript project and had time to play around with mocha. I can seriously recommen...
how to check the dtype of a column in python pandas
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In pandas 0.20.2 you can do:
from pandas.api.types import is_string_dtype
from pandas.api.types import is_numeric_dtype
is_string_dtype(df['A'])
>>>> True
is_numeric_dtype(df['B'])
>>>> True
So your code becomes:
for y in agg.columns:
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How to make space between LinearLayout children?
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The API >= 11 solution:
You can integrate the padding into divider. In case you were using none, just create a tall empty drawable and set it as LinearLayout's divider:
<LinearLayout
android:showDividers="...
Task vs Thread differences [duplicate]
...d rather than running on the ThreadPool.
All newer high-level concurrency APIs, including the Parallel.For*() methods, PLINQ, C# 5 await, and modern async methods in the BCL, are all built on Task.
Conclusion
The bottom line is that Task is almost always the best option; it provides a much more p...
Lightweight Javascript DB for use in Node.js [closed]
...as you but couldn't find a suitable database. nStore was promising but the API was not nearly complete enough and not very coherent.
That's why I made NeDB, which a dependency-less embedded database for Node.js projects. You can use it with a simple require(), it is persistent, and its API is the m...
What is the difference between Android margin start/end and right/left?
...flow, start=right, end=left.
The "start" and "end" concepts were added in API Level 17, as part of Android 4.2's support for RTL layouts.
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follo...