Define $DEPENDS for python.

[dipankar08]

I want to execure code like
import scrapy

class BlogSpider(scrapy.Spider):
name = 'blogspider'
start_urls = ['https://blog.scrapinghub.com']

def parse(self, response):
    for url in response.css('ul li a::attr("href")').re('.*/category/.*'):
        yield scrapy.Request(response.urljoin(url), self.parse_titles)

def parse_titles(self, response):
    for post_title in response.css('div.entries > ul > li a::text').extract():
        yield {'title': post_title}

Traceback (most recent call last):
File "/tmp/NBAC.py", line 1, in
import scrapy
ImportError: No module named scrapy