readline() & seek() ???

[DataSmash]

Hi group,
I have a text file that contains thousands of lines and each line is
256 characters long.

This is my task:
For each line in the file, move to the 25th character, if the
character is a "T",
move to the 35th character of the line and read 5 characters from
there.
Capture these 5 characters and write them to a new text file, each 5
characters separated by a comma.

I appreciate your help!
R.D.

[Tim Roberts]

Re: readline() & seek() ???

DataSmash <rdh@new.rr.com wrote:

>
>I have a text file that contains thousands of lines and each line is
>256 characters long.
>
>This is my task:
>For each line in the file, move to the 25th character, if the
>character is a "T",
>move to the 35th character of the line and read 5 characters from
>there.
>Capture these 5 characters and write them to a new text file, each 5
>characters separated by a comma.
>
>I appreciate your help!

Did you even TRY this? Your task reads like pseudocode that translates
virtually line-for-line to Python code.

fout = open('outputfil e.txt','w')
for line in open('inputfile .txt'):
if line[24] == 'T':
fout.write( line[34:39] + ',' )
--
Tim Roberts, timr@probo.com
Providenza & Boekelheide, Inc.

[Carl Banks]

Re: readline() &amp; seek() ???

On Jun 4, 5:30 pm, DataSmash <r...@new.rr.co mwrote:

Hi group,
I have a text file that contains thousands of lines and each line is
256 characters long.
>
This is my task:
For each line in the file, move to the 25th character, if the
character is a "T",
move to the 35th character of the line and read 5 characters from
there.
Capture these 5 characters and write them to a new text file, each 5
characters separated by a comma.

Your professor possibly reads comp.lang.pytho n, and if so, is likely
to know how to track you down with your IP address.


Carl Banks

[DataSmash]

Re: readline() &amp; seek() ???

On Jun 5, 3:50 am, Carl Banks <pavlovevide... @gmail.comwrote :

On Jun 4, 5:30 pm, DataSmash <r...@new.rr.co mwrote:
>

Hi group,
I have a text file that contains thousands of lines and each line is
256 characters long.

>

This is my task:
For each line in the file, move to the 25th character, if the
character is a "T",
move to the 35th character of the line and read 5 characters from
there.
Capture these 5 characters and write them to a new text file, each 5
characters separated by a comma.

>
Your professor possibly reads comp.lang.pytho n, and if so, is likely
to know how to track you down with your IP address.
>
Carl Banks

Marc, Thanks.

Tim, Thanks for the code. It's a easy task IF you know what to look
for. I didn't.

Carl, I'm not a student. Was just looking for some ideas.

[Kam-Hung Soh]

Re: readline() &amp; seek() ???

Tim Roberts wrote:

DataSmash <rdh@new.rr.com wrote:

>I have a text file that contains thousands of lines and each line is
>256 characters long.
>>
>This is my task:
>For each line in the file, move to the 25th character, if the
>character is a "T",
>move to the 35th character of the line and read 5 characters from
>there.
>Capture these 5 characters and write them to a new text file, each 5
>characters separated by a comma.
>>
>I appreciate your help!

>
Did you even TRY this? Your task reads like pseudocode that translates
virtually line-for-line to Python code.
>
fout = open('outputfil e.txt','w')
for line in open('inputfile .txt'):
if line[24] == 'T':
fout.write( line[34:39] + ',' )

Should the last line be ...

fout.write(','. join(line[34:39])

--
Kam-Hung Soh <a href="http://kamhungsoh.com/blog">Software Salariman</a>

[Chris]

Re: readline() &amp; seek() ???

On Jun 6, 5:13 am, Kam-Hung Soh <kamhung....@gm ail.comwrote:

Tim Roberts wrote:

DataSmash <r...@new.rr.co mwrote:

I have a text file that contains thousands of lines and each line is
256 characters long.

>

This is my task:
For each line in the file, move to the 25th character, if the
character is a "T",
move to the 35th character of the line and read 5 characters from
there.
Capture these 5 characters and write them to a new text file, each 5
characters separated by a comma.

>

I appreciate your help!

>

Did you even TRY this?  Your task reads like pseudocode that translates
virtually line-for-line to Python code.

>

  fout = open('outputfil e.txt','w')
  for line in open('inputfile .txt'):
      if line[24] == 'T':
          fout.write( line[34:39] + ',' )

>
Should the last line be ...
>
fout.write(','. join(line[34:39])
>
--
Kam-Hung Soh <a href="http://kamhungsoh.com/blog">Software Salariman</a>

each 5 characters need to be delimited by a comma, your statement
would have a comma between each of the 5 characters.

[Kam-Hung Soh]

Re: readline() &amp; seek() ???

Chris wrote:

On Jun 6, 5:13 am, Kam-Hung Soh <kamhung....@gm ail.comwrote:

>Tim Roberts wrote:

>>DataSmash <r...@new.rr.co mwrote:
>>>I have a text file that contains thousands of lines and each line is
>>>256 characters long.
>>>This is my task:
>>>For each line in the file, move to the 25th character, if the
>>>character is a "T",
>>>move to the 35th character of the line and read 5 characters from
>>>there.
>>>Capture these 5 characters and write them to a new text file, each 5
>>>characters separated by a comma.
>>>I appreciate your help!
>>Did you even TRY this? Your task reads like pseudocode that translates
>>virtually line-for-line to Python code.
>> fout = open('outputfil e.txt','w')
>> for line in open('inputfile .txt'):
>> if line[24] == 'T':
>> fout.write( line[34:39] + ',' )

>Should the last line be ...
>>
>fout.write(',' .join(line[34:39])
>>
>--
>Kam-Hung Soh <a href="http://kamhungsoh.com/blog">Software Salariman</a>

>
each 5 characters need to be delimited by a comma, your statement
would have a comma between each of the 5 characters.

You're right; I see where I got confused.

--
Kam-Hung Soh <a href="http://kamhungsoh.com/blog">Software Salariman</a>