[Tutor] Searching a text file's contents and comparing them to alist

[davidheiserca at gmail.com]

There are probably "return" characters at the end of each "line" from the 
"grocery_list".

Try using the String method "line.strip()".

Or "grocery_list.read().splitlines()"




----- Original Message ----- 
From: "Eric Hamiter" <ehamiter at gmail.com>
To: <tutor at python.org>
Sent: Wednesday, July 14, 2010 8:46 AM
Subject: [Tutor] Searching a text file's contents and comparing them to 
alist


> Hi all,
>
> New programmer here. This is what I want to do:
>
> 1. Open an existing text file named "grocery_list.txt", which has one
> item per line, like so:
>
> butter
> juice
> bread
> asparagus
> magazines
> ice cream
>
> 2. ...and search for these items in a pre-defined list.
>
> But I can't seem to get this working. Right now after trying the 
> following:
>
>
> aisle_one = ["chips", "bread", "pretzels", "magazines"]
>
> grocery_list = open("grocery_list.txt", "r")
> for line in grocery_list.readlines():
>    if line in aisle_one:
>       print "success"
>    else:
>       print "no joy"
> grocery_list.close()
>
>
> I get this:
>
> no joy
> no joy
> no joy
> no joy
> no joy
> no joy
>
> when I'm expecting this:
>
> no joy
> no joy
> success
> no joy
> success
> no joy
>
>
> Am I close? This seems like it should work but I'm obviously missing 
> something.
>
> Thanks,
>
> Eric
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