mirror of https://github.com/python/cpython
61 lines
1.2 KiB
Python
61 lines
1.2 KiB
Python
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#! /usr/local/bin/python
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# www9.py -- display the contents of a URL in a Text widget
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# - set window title
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# - make window resizable
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# - update display while reading
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# - vertical scroll bar
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# - rewritten as class
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import sys
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import urllib
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from Tkinter import *
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def main():
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if len(sys.argv) != 2 or sys.argv[1][:1] == '-':
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print "Usage:", sys.argv[0], "url"
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sys.exit(2)
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url = sys.argv[1]
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viewer = Viewer()
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viewer.load(url)
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viewer.go()
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class Viewer:
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def __init__(self):
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# Create root window
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self.root = Tk()
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self.root.minsize(1, 1)
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# The Scrollbar *must* be created first
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self.vbar = Scrollbar(self.root)
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self.vbar.pack({'fill': 'y', 'side': 'right'})
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self.text = Text(self.root)
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self.text.pack({'expand': 1, 'fill': 'both', 'side': 'left'})
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# Link Text widget and Scrollbar
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self.text['yscrollcommand'] = (self.vbar, 'set')
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self.vbar['command'] = (self.text, 'yview')
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def load(self, url):
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# Load a new URL into the window
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fp = urllib.urlopen(url)
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self.root.title(url)
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self.text.delete('0.0', 'end')
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while 1:
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line = fp.readline()
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if not line: break
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self.text.insert('end', line)
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self.root.update_idletasks()
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fp.close()
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def go(self):
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# Start Tk main loop
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self.root.mainloop()
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main()
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