web scraping - Getting a URL from hyperlinks using BeautifulSoup in Python -


i scraped webpage using beautifulsoup, assigned 'soup'. can text 'aberdeen' adding .text onto end of 'site_url'.

what want complete url in string, e.g. "http://www.somewebsite.com/networks/site-info?site_id=abd"

>>>site_link = soup.find_all('a', string='aberdeen')[0] >>>site_row = site_link.findparent('td').findparent('tr') >>>site_column = site_row.findall('td') >>>site_url = site_column[0].contents[0] >>>print(site_url)  <a href="../networks/site-info?site_id=abd">aberdeen</a>

i have not had luck far , not know else try. how can url?

you can use regular expression links use urljoin correct urls.

import requests import re  try:     urlparse import urljoin  # python2 except importerror:     urllib.parse import urljoin  # python3  bs4 import beautifulsoup url= 'https://uk-air.defra.gov.uk/latest/currentlevels' r = requests.get(url, headers={'user-agent': 'not blank'}) data = r.text soup = beautifulsoup(data, 'html.parser') elem in soup('a', href=re.compile(r'site_id')):     print (elem.text)     print (urljoin(url,elem['href']))

outputs:

auchencorth moss https://uk-air.defra.gov.uk/networks/site-info?site_id=acth bush estate https://uk-air.defra.gov.uk/networks/site-info?site_id=bush dumbarton roadside https://uk-air.defra.gov.uk/networks/site-info?site_id=dumb edinburgh st leonards https://uk-air.defra.gov.uk/networks/site-info?site_id=ed3 glasgow great western road https://uk-air.defra.gov.uk/networks/site-info?site_id=ggwr glasgow high street https://uk-air.defra.gov.uk/networks/site-info?site_id=ghsr ...

if want aberdeen use:

for elem in soup('a',href=re.compile(r'site_id'), string='aberdeen'):

instead of:

for elem in soup('a', href=re.compile(r'site_id')):

outputs:

aberdeen https://uk-air.defra.gov.uk/networks/site-info?site_id=abd

Comments

Post a Comment

Popular posts from this blog

android - InAppBilling registering BroadcastReceiver in AndroidManifest -

i'm implementing inapp billing in android app. works well, however, i'm trying decouple broadcast receiver activity manifest. suggestion in android's trivialdrive sample: // important: dynamically register broadcast messages updated purchases. // register receiver here instead of <receiver> in manifest // because call getpurchases() @ startup, therefore can ignore // broadcasts sent while app isn't running. // note: registering listener in activity bad idea, done here // because sample. regardless, receiver must registered after // iabhelper setup, before first call getpurchases(). currently there's class extends broadcastreceiver : public class iabbroadcastreceiver extends broadcastreceiver { /** * intent action receiver should filter for. */ public static final string action = "com.android.vending.billing.purchases_updated"; private final iabbroadcastlistener mlistener; public iabbroadcastreceiver(iabbroadcastlistener listener) { m...
Read more

python Tkinter Capturing keyboard events save as one single string -

is possible store keyboard events 1 string? code below stores 1 char , prints it. card reader or bar code reader, contains collection of character/ string not 1 character @ time. goal save char pressed text variable. from tkinter import * root = tk() def key(event): text= event.char text+= event.char print ("pressed", text) def callback(event): frame.focus_set() print ("clicked at", event.x, event.y) frame = frame(root, width=100, height=100) frame.bind("<key>", key) frame.bind("<button-1>", callback) frame.pack() root.mainloop() currently, creating text variable , everytime key() function gets called, , text stores last character typed. you can define text module level variable , , use module level text inside key function - text = '' def key(event): global text text+= event.char print("pressed", text)
Read more

sql server - Why does Linq-to-SQL add unnecessary COUNT()? -

here tables: create table customer ( cid int primary key, name varchar(32) ) create table ord ( oid int primary key, cid int foreign key references customer, address varchar(20) ) here's linq-to-sql statement: var aaa = c in db.customer select new { c, o = c.ord.tolist() }; and here's inexplicable query generated linq-to-sql: select [t0].[cid] [cid], [t0].[name] [name], [t1].[oid] [oid], [t1].[cid] [cid2], [t1].[address] [address], (select count(*) [dbo].[ord] [t2] [t2].[cid] = [t0].[cid]) [value] [dbo].[customer] [t0] left outer join [dbo].[ord] [t1] on [t1].[cid] = [t0].[cid] order [t0].[cid], [t1].[oid] i want understand how rid of count(*) part. it's entirely uncalled for! linq needs count(*) in order determine number of entries returned o = c.ord.tolist() .
Read more