Newbie needs help with regex strings

[Gerard Flanagan]

Fredrik Lundh wrote:

> Scott wrote:
>
> > I have a file with lines in the following format.
> >
> > pie=apple,quantity=1,cooked=yes,ingredients='sugar and cinnamon'
> > Pie=peach,quantity=2,ingredients='peaches,powdered sugar'
> > Pie=cherry,quantity=3,cooked=no,price=5,ingredients='cherries and sugar'
> >
> > I would like to pull out some of the values and write them to a csv
> > file.
>
> here's a relatively straightforward re solution that gives you a dictionary
> with the values for each line.
>
> import re
>
> for line in open("infile.txt"):
>     d = {}
>     for k, v1, v2 in re.findall("(\w+)=(?:(\w+)|'([^']*)')", line):
>         d[k.lower()] = v1 or v2
>     print d
>

How about replacing

    d={}

with

    d = {'pie': ',', 'quantity': ',', 'cooked': ',', 'price':
',','ingredients': '', 'eol': '\n'}

to get the appropriate commas for missing fields?

Gerard