I’m new to programing, this is my first python-gtk applet and I’m trying to make an applet similar to gnome-dictionary that retrieves the word meaning from the site http://www.priberam.pt/dlpo/. I’m doing it little-by-little but now I’m stuck, can someone help me to see what am I doing wrong?
I get this error:
“TypeError: unbound method enter_callback() must be called with x instance as first argument (got Entry instance instead)”
The code is as follows:
from BeautifulSoup import BeautifulSoup, BeautifulStoneSoup
import urllib2
import re
import HTMLParser
import sys
import gtk
import pango
import string
class x:
def enter_callback(self, widget, entry):
entry_text = entry.get_text()
wordTodefine = entry_text
url = "http://www.priberam.pt/dlpo/dlpo.aspx?pal="
url = '{0}{1}'.format(url, wordTodefine)
g = urllib2.urlopen(url)
s = g.read()
def extract(text, sub1, sub2):
"""extract a substring between two substrings sub1 and sub2 in text"""
return text.split(sub1)[-1].split(sub2)[0]
str4 = extract(s, ' <?xml version="1.0" encoding="utf-16"?><div><table style="background-color:#eee; width:100%;" cellpadding="4" cellspacing="0" border="0" bordercolor="#cccccc"><tr><td><div>', '<div id="ctl00_ContentPlaceHolder1_pnl_relacionadas">')
str5 = '{0}{1}{2}'.format('<html xmlns="http://www.w3.org/1999/xhtml" xmlns:svg="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><div><table style="background-color:#eee; width:100%;" cellpadding="4" cellspacing="0" border="0" bordercolor="#cccccc"><tr><td><div>', str4, '</html>')
return str5
class HTMLBuffer(HTMLParser.HTMLParser):
ignoreTags = ('title', 'table')
noTagTags = ('html', 'head')
newlineTags = ('p', 'h1', 'h2', 'li', 'div')
whiteSpaceNuker = re.compile(r"""\s+""", re.MULTILINE)
def __init__(self):
self.buffer = gtk.TextBuffer()
self.ignoreData = 0
self.inList = 0
self.currentTag = ''
self.startOfP = 0
HTMLParser.HTMLParser.__init__(self)
if gtk.gdk.screen_width() >= 800:
baseSize = 13
else:
baseSize = 10
baseFont = 'Times'
tag = self.buffer.create_tag('body')
tag.set_property('font', '%s %d' % (baseFont, baseSize))
tag = self.buffer.create_tag('p')
tag.set_property('pixels-above-lines', 5)
tag.set_property('pixels-below-lines', 5)
tag = self.buffer.create_tag('tt')
tag.set_property('font', 'Times %d' % (baseSize,))
tag = self.buffer.create_tag('a')
tag.set_property('font', '%s %d' % (baseFont, baseSize))
tag = self.buffer.create_tag('h1')
tag.set_property('font', '%s %d' % (baseFont, baseSize + 10))
tag.set_property('weight', pango.WEIGHT_BOLD)
tag = self.buffer.create_tag('h2')
tag.set_property('font', '%s %d' % (baseFont, baseSize + 4))
tag.set_property('weight', pango.WEIGHT_BOLD)
tag = self.buffer.create_tag('b')
tag.set_property('weight', pango.WEIGHT_BOLD)
tag = self.buffer.create_tag('i')
tag.set_property('style', pango.STYLE_ITALIC)
tag = self.buffer.create_tag('em')
tag.set_property('style', pango.STYLE_ITALIC)
tag = self.buffer.create_tag('ul')
tag.set_property('left-margin', 20)
# reset spacing in paragraphs incase this list is inside <p>
tag.set_property('pixels-above-lines', 0)
tag.set_property('pixels-below-lines', 0)
tag = self.buffer.create_tag('li')
tag.set_property('indent', -9)
self.iter = self.buffer.get_iter_at_offset(0)
self.offsets = {}
def get_buffer(self):
return self.buffer
def pushTag(self, tag, offset):
if self.offsets.has_key(tag):
self.offsets[tag].append(offset)
else:
self.offsets[tag] = [offset]
def popTag(self, tag):
if not self.offsets.has_key(tag):
raise RuntimeError, "impossible"
return self.offsets[tag].pop()
# structure markup
def handle_starttag(self, tag, attrs):
if tag in self.ignoreTags:
self.ignoreData += 1
return
self.currentTag = tag
if tag in self.noTagTags:
return
self.pushTag(tag, self.iter.get_offset())
if tag == 'li':
self.inList += 1
self.buffer.insert(self.iter, u'\u2022 ')
elif tag == 'p':
self.startOfP = 1
def handle_endtag(self, tag):
if tag in self.ignoreTags:
self.ignoreData -= 1
return
if tag == 'li':
self.inList -= 1
if tag in self.noTagTags:
return
offset = self.popTag(tag)
current = self.iter.get_offset()
if tag in self.newlineTags and offset != current:
if tag == 'p' and self.inList:
offset -= 2
# put a newline at the beginning
start = self.buffer.get_iter_at_offset(offset)
self.buffer.insert(start, '\n')
offset += 1
current += 1
self.iter = self.buffer.get_iter_at_offset(current)
start = self.buffer.get_iter_at_offset(offset)
self.buffer.apply_tag_by_name(tag, start, self.iter)
# all other markup
def handle_data(self, data):
if self.ignoreData == 0:
data = data.replace('\n', ' ')
data = self.whiteSpaceNuker.sub(' ', data)
if self.startOfP:
if data.startswith(' '):
data = data[1:]
self.startOfP = 0
#print '|%s|' % (data,)
self.buffer.insert(self.iter, data)
if __name__ == '__main__':
def quit(*args):
gtk.main_quit()
buffer = HTMLBuffer()
buffer.feed(x)
buffer.close()
#if __name__ == '__main__':
#def __init__():
window = gtk.Window()
vbox = gtk.VBox(False, 0)
view = gtk.TextView()
view.set_property("editable", False)
view.set_property("cursor_visible", False)
entry = gtk.Entry()
entry.connect("activate", x.enter_callback, entry, view)
vbox.pack_start(entry, False, False, 0)
vbox.pack_end(view, False, False, 0)
window.connect("destroy", lambda w: gtk.main_quit())
window.add(vbox)
window.show_all()
x()
gtk.main()
I used an HtmlParser made by Matt Wilson and tried to integrate it in my file…
Thanks in advance, and sorry for the mess that this code is.
Why is the function
enter_callbacka method of the classx? It doesn’t seem like there is any good structural reason for it to be inxin the first place. Take it out ofxand the error message will go away (the error message is complaining thatselfisn’t being passed toenter_callback). Well, at least this one will go away, probably replaced by another one 🙂