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Sentence Processing

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Join Date: Oct 2006

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sneekula

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Nearly a Posting Maven

Sentence Processing

Nov 5th, 2006

I have a file of sentences similar to this:

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Tom ate his Apple.
Frank shoveled Snow.
Henry drove a Truck.

I would like to prosess each sentence so it only retains the capital letter in the first word, every other word in the senetnce should be lower case. The result would look like this:

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Tom ate his apple.
Frank shoveled snow.
Henry drove a truck.

No one died when Clinton lied.

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LaMouche

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Re: Sentence Processing

Nov 5th, 2006

so pull in the lines:

[php]
f = open("sentences.txt","r")
lines = f.readlines()
f.close()
[/php]
Then sort through each line and uppercase each first letter and lowercase the rest; stick those new sentences into a new list:

[php]
lines_new = []

for line in lines:
lines_new.append(line[0].upper() + line[1:].lower())
[/php]

Last edited by LaMouche; Nov 5th, 2006 at 6:21 pm.

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Join Date: Oct 2006

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sneekula

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Re: Sentence Processing

Nov 6th, 2006

Wow LaMouche, this is sweet Python code. I learned a lot about file reading/writing too. Here is what I have, showing it with my test file:

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"""
file sentences.txt looks like that:
Tom ate his Apple.
Frank shoveled Snow.
Henry drove a Truck.
"""
f_in = open("sentences.txt","r")
lines = f_in.readlines()
f_in.close()
lines_new = []
for line in lines:
    lines_new.append(line[0].upper() + line[1:].lower())
f_out = open("sentences_fixed.txt", "w")
for line in lines_new:
    f_out.write(line)
f_out.close()
"""
file sentences_fixed.txt looks like that:
Tom ate his apple.
Frank shoveled snow.
Henry drove a truck.
"""
"""
file sentences.txt looks like that:
Tom ate his Apple.
Frank shoveled Snow.
Henry drove a Truck.
"""
f_in = open("sentences.txt","r")
lines = f_in.readlines()
f_in.close()
lines_new = []
for line in lines:
    lines_new.append(line[0].upper() + line[1:].lower())
f_out = open("sentences_fixed.txt", "w")
for line in lines_new:
    f_out.write(line)
f_out.close()
"""
file sentences_fixed.txt looks like that:
Tom ate his apple.
Frank shoveled snow.
Henry drove a truck.
"""

My actual sentence file works fine too. I think I understand your code. Each line is a sentence and line[0].upper() simply makes certain that the first letter in the sentence is capitalized. To this you concatenate with the + the remainder of the sentence converted to lower case. Nice example of string slicing!

Thanks!

No one died when Clinton lied.