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Ventolin Colchicine

with 3 comments

You know how Python has string.Template Ventolin colchicine, . Buying ventolin inhalers online from spain, It's kinda useful, as it allows you to do stuff like:


from string import Template
s = Template('$who likes $what')
print s.substitute(who='tim', ventolin hfa max dose per day, Aphex twin ventolin, what='kung pao')
'tim likes kung pao'

That's neat. But more often than not, ventolin dosage, Ventolin still mp3, you may want to use nested dicts, so you can write something like 'person.name', ventolin evohaler. Side effects of ventolin, string.Template won't allow you to do this, but it's pretty easy to get around:


class TraversingDict(dict):
def __getitem__(self, bronchial dialator ventolin, Albuterol proventil ventolin, item):
if '.' in item:
source, path = item.split('.', ventolin inhalers for sale, Overdose ventolin, 1)
return TraversingDict(self[source])[path]
return super(TraversingDict, self).__getitem__(item)

class InterpolTemplate(string.Template):
idpattern = r'[_a-z][_a-z0-9\.]*'

def render(self, ventolin patch, Ordering ventolin on-line in canada, dct):
return self.safe_substitute(TraversingDict(dct))

How does it work. It uses a custom class, ventolin asthma puffers, Ventolin diskus, which subclasses 'dict'. It'll behave just like a normal built-in dictionary, but we've overriden __getitem__ to look for periods in the key name, ventolin colchicine. If one is found, ventolin side effects, Ventolin shopzilla, it splits up the key, and instantiates itself recursively, ventolin pharmacology. Ventolin causing eczema, This essentially means that you can nest to any level, like 'person.information.personal.name.first_name', maxair autohaler vs ventolin hfa. Buying ventolin inhalers online, The 'render' method on InterpolTemplate is not really needed, but it turns your dict into a TraversingDict, nonprescription ventolin, Ventolin online, so you don't need to mess with those at all:

Here's the unittest I use:


def run_template_test():
tmpl = "repository: ${repo.name}, owner: ${repo.owner}, ventolin inhalers canada pharmacy, Lasix theophyllin and ventolin, size: ${size}"
t = InterpolTemplate(tmpl)
d = { 'repo': { 'name': 'foo', 'owner': 'bar' }, 'size': 42 }
r = t.render(d)

assert r == 'repository: foo, owner: bar, size: 42', r

Neat, eh. Makes for a nice simple substitute when you don't want to rely on <insert template library here>.

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Written by jespern

July 15th, 2009 at 9:50 am

Posted in python

3 Responses to 'Ventolin Colchicine'

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  1. Have you seen the str.format function in python 3?

    http://docs.python.org/3.1/library/string.html#format-string-syntax

    - Paddy.

    Paddy3118

    16 Jul 09 at 4:16 pm

  2. Paddy: I was just about to post that.

    Also, it supports nested dictionaries now too, not just in Python 3.

    Alec Henriksen

    31 Jul 09 at 8:27 pm

  3. This is brilliant. Wrapping an input dict with TraversingDict superclass so you can reuse existing code is super elegant.

    Samuel Wan

    31 Oct 09 at 7:43 am

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