CODEWITHSUNDEEP
pythoninit
Coding_Rabbit
Coding_Rabbit

Reputation: 1337

How to use the arguments of "_init_ " in other methods?

I want to use one parameter 'term' in my _init_ method.As you can see, when the _init method get this parameter, I want to use it as the name of my database's collection and insert data into it. But I don't know how to use the value of term from _init in the whole class.So does anybody have good advice for me to deal with this?

class EPGDspider(scrapy.Spider):
        name = "EPGD"
        allowed_domains = ["epgd.biosino.org"]

    db = DB_Con()
    collection = db.getcollection(term)

    def __init__(self, term=None, *args, **kwargs):
        super(EPGDspider, self).__init__(*args, **kwargs)
        self.start_urls = ['http://epgd.biosino.org/EPGD/search/textsearch.jsp?textquery=%s&submit=Feeling+Lucky' % term]

    def parse(self, response):
        sel = Selector(response)
        sites = sel.xpath('//tr[@class="odd"]|//tr[@class="even"]')
        url_list = []
        base_url = "http://epgd.biosino.org/EPGD"

        for site in sites:
            item = EPGD()
            item['description'] = map(unicode.strip, site.xpath('td[6]/text()').extract())
            self.collection.update({"genID": item['genID']}, dict(item), upsert=True)
            yield item

Upvotes: 1

Views: 51

Answers (1)

alecxe
alecxe

Reputation: 474221

Make it an instance variable:

def __init__(self, term=None, *args, **kwargs):
    super(EPGDspider, self).__init__(*args, **kwargs)

    self.term = term
    # ...

Then, reference it using self.term in other methods:

def parse(self, response):
    print(self.term)
    # ...

Upvotes: 4

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