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

Question

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

Before writing classes, you should read and study at least the Python tutorial on that subject. — Cyb3rFly3r
– Cyb3rFly3r, Commented Apr 21, 2016 at 3:55

alecxe · Accepted Answer · 2016-04-21 02:51:22Z

4

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)
    # ...

answered Apr 21, 2016 at 2:51

alecxe

476k127 gold badges1.1k silver badges1.2k bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Coding_Rabbit Over a year ago

Thank you for your help!

Collectives™ on Stack Overflow

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

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related