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How to pass a user defined argument in scrapy spider
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190
Spider arguments are passed in the crawl command using the -a option. For example:
scrapy crawl...
Moving default AVD configuration folder (.android)
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202
I've found the answer.
Move .android folder to E:\Android
Create environment variable called
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Do browsers send “\r\n” or “\n” or does it depend on the browser?
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50
The HTTP and MIME specs specify that header lines must end with \r\n, but they aren't clear (som...
What is process.env.PORT in Node.js?
what is process.env.PORT || 3000 used for in Node.js? I saw this somewhere:
4 Answers
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How can I save an image with PIL?
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Abhishek kumar
10366 bronze badges
answered Jan 23 '13 at 3:42
mmgpmmgp
16.9k22 gold badges424...
Ruby class types and case statements
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answered Oct 11 '10 at 17:11
NakilonNakilon
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How to create an empty file at the command line in Windows?
...NUL EmptyFile.txt
"How to create empty text file from a batch file?" (2008) also points to:
type NUL > EmptyFile.txt
# also
echo. 2>EmptyFile.txt
copy nul file.txt > nul # also in qid's answer below
REM. > empty.file
fsutil file createnew file.cmd 0 # to create a file on a mapped dr...
When to use f:viewAction / preRenderView versus PostConstruct?
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120
When should one use the f:viewAction or preRenderView event to initialize data for a page verse...
Difference between std::result_of and decltype
I have some trouble understanding the need for std::result_of in C++0x. If I understood correctly, result_of is used to obtain the resulting type of invoking a function object with certain types of parameters. For example:
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async await return Task
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edited Oct 20 '15 at 19:52
bashis
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ans...