Greetings,
On 7/9/07, John Fouhy <[EMAIL PROTECTED]> wrote:
>
> The best way to find out what the functions do is to experiment with them.
>
> eg:
>
> >>> f = open('text.txt', 'r')
> >>> f.readlines()
>
> and look at the output.
I like that idea. I made a simple english plain text file, thus:
first line
second line
third line
and named it text.txt.
I start the Python interactive interpreter:
>>>
>>> open('text.txt').read()
'first line\nsecond line\nthird line\n'
>>> len(open('text.txt').read())
34
>>> file=open('text.txt').read()
>>> print file
first line
second line
third line
>>> file.readlines()
Traceback (most recent call last):
File "<stdin>", line 1, in ?
AttributeError: 'str' object has no attribute 'readlines'
> However, that said, the modern way to read a file one line at a time is:
>
> f = open('text.txt', 'r')
> for line in f:
> # do something with line
>
> This will set the variable 'line' to each line of the file in turn.
>>> for line in file:
. . . print line
. . .
f
i
r
s
t
l
i
n
e
s
e
c
o
n
d
l
i
n
e
t
h
i
r
d
l
i
n
e
>>>
>
> --
> John.
>>> Ctrl-D
Oh well, back to the tutorials.... 8^D
--
bhaaluu at gmail dot com
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