[techtalk] Re: python re.sub help

[Tessa Lau]

This appears to work for me (Python 1.5.2):
>>> var_a = "http://127.0.0.1/email/logout"
>>> var_b = "http://www.lazygirl.com"
>>> var_a = re.sub("http://127.0.0.1", var_b, var_a)
>>> var_a
'http://www.lazygirl.com/email/logout'

What do you think is wrong?

> var_a = re.sub("http://127.0.0.1", "%s", var_a) % var_b

The proper syntax would be
	var_a = re.sub("http://127.0.0.1", "%s" % var_b, var_a)

Also look at the urlparse module, for a cleaner way to do this kind of URL
munging.
 
--Tessa

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