python - previous output remains even after passing next input -
in code, output of 1 query. if pass next query in entry box, previous output in textbox remains unchanged , not getting output of new query.
coding:-
import tkinter tk import re class sampleapp(tk.tk): def __init__(self): tk.tk.__init__(self) self.l1 = tk.label(self, text="enter query") self.l1.pack() self.entry = tk.entry(self) self.button = tk.button(self, text="get", command=self.on_button) self.button.pack() self.entry.pack() self.text = tk.text(self) self.text.pack() def on_button(self): s1=(self.entry.get()) open("myxml.txt","rb")as f: row = f.readlines() i, r in enumerate(row): if s1 in r: x in range(i-3,i+4): s = row[x] m = re.sub(r'<(\w+)\b[^>]*>([^<]*)</\1>', r'\1-\2', s) self.text.insert(tk.end, re.sub(r'<[^<>]*>','', m)) app = sampleapp() app.mainloop() how can next output after passing next query? please help! in advance!
first of don't try parse xml regexp use real xml parser
i mean really stop parsing xml regexp because regexp not want. (and when happen surprised).
to come current problem have delete text widget content. 1 line @ appropriate place should enough (not tested)
import tkinter tk import re class sampleapp(tk.tk): def __init__(self): tk.tk.__init__(self) self.l1 = tk.label(self, text="enter query") self.l1.pack() self.entry = tk.entry(self) self.button = tk.button(self, text="get", command=self.on_button) self.button.pack() self.entry.pack() self.text = tk.text(self) self.text.pack() def on_button(self): s1=(self.entry.get()) #here line added self.text.delete(1.0, tk.end) #delete content of self.text open("myxml.txt","rb")as f: row = f.readlines() i, r in enumerate(row): if s1 in r: x in range(i-3,i+4): s = row[x] m = re.sub(r'<(\w+)\b[^>]*>([^<]*)</\1>', r'\1-\2', s) self.text.insert(tk.end, re.sub(r'<[^<>]*>','', m)) app = sampleapp() app.mainloop()
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