Sort lines in a plain text file alphanumerically

[edu4madh at gmail.com]

On Monday, August 5, 2013 10:00:55 PM UTC-4, Devyn Collier Johnson wrote:
> I am wanting to sort a plain text file alphanumerically by the lines. I 
> 
> have tried this code, but I get an error. I assume this command does not 
> 
> accept newline characters.
> 
> 
> 
> 
> 
>  >>> file = open('/home/collier/pytest/sort.TXT', 'r').read()
> 
>  >>> print(file)
> 
> z
> 
> c
> 
> w
> 
> r
> 
> h
> 
> s
> 
> d
> 
> 
> 
> 
> 
>  >>> file.sort() #The first blank line above is from the file. I do not 
> 
> know where the second comes from.
> 
> Traceback (most recent call last):
> 
>    File "<stdin>", line 1, in <module>
> 
> AttributeError: 'str' object has no attribute 'sort'
> 
> 
> 
> I had the parameters (key=str.casefold, reverse=True), but I took those 
> 
> out to make sure the error was not with my parameters.
> 
> 
> 
> Specifically, I need something that will sort the lines. They may 
> 
> contain one word or one sentence with punctuation. I need to reverse the 
> 
> sorting ('z' before 'a'). The case does not matter ('a' = 'A').
> 
> 
> 
> I have also tried this without success:
> 
> 
> 
>  >>> file.sort(key=str.casefold, reverse=True)
> 
> Traceback (most recent call last):
> 
>    File "<stdin>", line 1, in <module>
> 
> AttributeError: 'str' object has no attribute 'sort'
> 
> 
> 
> 
> 
> Mahalo,
> 
> 
> 
> DevynCJohnson at Gmail.com

fileName = open('test.txt')
lines = fileName.readlines()
lines.sort()
print lines