How to create columns in a csv file and insert row under them in python scrapy -

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How to create columns in a csv file and insert row under them in python scrapy -

please help me in creating columns , inserting rows under them in csv file using python scrapy. need write scraped info 3 columns. first of 3 columns created , info entered in each row.

csv comma saparated values format. means text file strings separated commas , line-downs. each line downwards creates row , each comma creates column in row.

i guess simplest way create csv file create pythonic dict each key column , value each column list of rows none stands obvious lack of value. can fill in dict appending values requested column (thus adding row) , transform dict csv file iterating on list indexes , each column either add together value, entry in file or , entry index-out-of-bound or none value corresponding list. each row add together line down.

python scrapy

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