Please reply-all so a copy goes to the list.
On 4/4/2010 10:02 PM, TGW wrote:
>/ I wrote a script that compares two text files (one zip code file, and
/>/ one address file) and tries to output records that match the
/>/ zipcodes. Here is what I have so far:
/>/
/>/ #!/usr/bin/env python
/>/ # Find records that match zipcodes in zips.txt
/>/
/>/ def main():
/>/ infile = open("/Users/tgw/NM_2010/NM_APR.txt", "r")
/>/ outfile = open("zip_match_apr_2010.txt", "w")
/>/ match_zips = open("zips.txt", "r")
/>/
/>/ lines = [line for line in infile if line[149:154] in match_zips] #
/>/ *** I think the problem is here ***
/
Yep. You are right.
Try a very simple test case; see if you can figure out what's happening:
infile:
123
234
345
match_zips:
123
234
345
infile = open("infile")
match_zips = open("match_zips")
[line for line in infile if line in match_zips]
Now change infile:
123
244
345
and run the program again.
Interesting, no. Does that give you any insights?
I think I am just lost on this one. I have no new insights. What is the exact
program that you want me to run?
#!/usr/bin/env python
infile = open("filex")
match_zips = open("zippys")
[line for line in infile if line in match_zips]
print line
I did what you said and I get '345' output both times.
Sorry - my mistake - try:
infile = open("filex")
match_zips = open("zippys")
result = [line for line in infile if line in match_zips]
print result
--
Bob Gailer
919-636-4239
Chapel Hill NC
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