Re: [Tutor] Import multiple lines of text into a variable
Sean Carolan wrote:
if line.startswith('notes'):
break
notes = open('myfile','r').read().split(notes:\n')[1]
The first two lines are redundant you only need the last one.
I should have clarified, the "if line.startswith" part was used to
break out of the previous for loop, which was used to import the
other, shorter strings.
Just for reference, "import" has special meaning in Python, and you hurt
my brain by using it as a synonym for "read".
For what it's worth, here's my solution. Rather than use the funky new
"open files are iterable" feature, go back to the old-style way of
reading line by line:
# untested
fp = open("myfile.txt")
for while True:
line = fp.readline() # read one line
if not line:
# nothing left to read
break
if "ham" in line:
process_ham(line) # Mmmm, processed ham...
if "spam" in line:
process_spam(line)
if line.startswith("notes"):
notes = fp.read() # reads the rest of the file
fp.close()
Note that it is okay to mix calls to read() and readline(), but it is
NOT okay to mix iteration over a file with calls to read() or readline().
--
Steven
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Re: [Tutor] Import multiple lines of text into a variable
"Sean Carolan" wrote
> The first two lines are redundant you only need the last one.
I should have clarified, the "if line.startswith" part was used to
break out of the previous for loop, which was used to import the
other, shorter strings.
Thats fair enough if you are doing something with those
shorter strings. But if not the whole loop is redundant,
you only need the split. Your original post did not mention
any processing of the earlier lines.
But even if you were you could still use the split() first
then process the first element in a loop and assign the
second element to your variable:
stuff, store = theFile.read().split('notes\n')
for line in stuff.split():
# process thing
That way there is no need for a break test.
HTH.,
--
Alan Gauld
Author of the Learn to Program web site
http://www.alan-g.me.uk/
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Re: [Tutor] Import multiple lines of text into a variable
>> if line.startswith('notes'):
>> break
>> notes = open('myfile','r').read().split(notes:\n')[1]
>
> The first two lines are redundant you only need the last one.
I should have clarified, the "if line.startswith" part was used to
break out of the previous for loop, which was used to import the
other, shorter strings.
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Re: [Tutor] Import multiple lines of text into a variable
"Sean Carolan" wrote
I ended up doing this, but please reply if you have a more elegant
solution:
if line.startswith('notes'):
break
notes = open('myfile','r').read().split(notes:\n')[1]
The first two lines are redundant you only need the last one.
HTH,
Alan G.
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Re: [Tutor] Import multiple lines of text into a variable
On 4/11/2011 5:14 PM, Sean Carolan wrote:
So right now my code looks something like this:
for line in open('myfile','r'):
if line.startswith('notes'):
## Assign rest of file to variable
Is there an easy way to do this? Or do I need to read the entire file
as a string first and carve it up from there instead?
I ended up doing this, but please reply if you have a more elegant solution:
if line.startswith('notes'):
break
notes = open('myfile','r').read().split(notes:\n')[1]
Seems like an elegant solution to me, as long as the file fits available
memory. There will be 2 copies of the file after the split.
Another way:
textFile = open('myfile','r')
for line in textFile:
if line.startswith('notes'):
notes = textFile.read()
--
Bob Gailer
919-636-4239
Chapel Hill NC
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Re: [Tutor] Import multiple lines of text into a variable
> So right now my code looks something like this:
>
> for line in open('myfile','r'):
> if line.startswith('notes'):
> ## Assign rest of file to variable
>
> Is there an easy way to do this? Or do I need to read the entire file
> as a string first and carve it up from there instead?
I ended up doing this, but please reply if you have a more elegant solution:
if line.startswith('notes'):
break
notes = open('myfile','r').read().split(notes:\n')[1]
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