Removing top empty line when writing a text file Python

Does that help Given the following example file: , I'd do it with sed, which can be as simple as:

/host wallmount/,/}/ d

sed -i '/host wallmount/,/}/ d' thefile.cfg

I wish did fix the issue. Use the Write method instead of WriteLine. The WriteLine method is the one adding a blank 0 length line to the file because it is terminating the "Hello World" string with a newline.

writeString.Write("Hello World")

it helps some times Well I have a python code named "remove_empty_line.py" that delete Empty line from a file "a.py", the problem is that code, delete all Indentation which affect "a.py" execution. So my question is how to solve this problem, I mean deleting Empty lines with Indentation conserving. , You can use this.

open('a_mod.py','w').write(''.join(l for l in open("a.py") if l.rstrip()))

Any of those help I want to extract the element stiffness matrix from Abaqus input file. the contents of the last lines of the file are as follows: , This code will do exactly what you need:

with open('Input8.inp', 'r+') as f:
    _text = ''
    for line in f:
        if line.startswith('*End Step'):
            _text += '*ELEMENT MATRIX OUTPUT,ELSET=m,STIFFNESS=YES,MASS=NO,OUTPUTFILE=USER\n'

        _text += line

    f.seek(0)
    f.write(_text)
    f.truncate()

I hope this helps . I am posting this without testing, as I do not have the environment to test as we speak. But to explain your issue, cmd will ommit empty lines as it is built that way. It is the same as setting a variable to nothing and expecting it to return a result, so we simply assign values to each line by sort of simulating a detection of line breaks (Don't know exactly how to explain that one) but nevertheless, we will add some additional characters to the lines to ensure we get line breaks, the just get rid of them once we have them, So here goes:

@echo off
setlocal enabledelayedexpansion

set inputfile=t.txt
set outputfile=t-new.txt
set _strfind=old "data"
set _strinsert=new "data";
for /f "tokens=*" %%a in ('type "%inputfile%" ^| find /v /n "" ^& break ^> "%inputfile%"') do (
    set "str=%%a"
    set "str=!str:*]=!"
    if "!str!"=="%_strfind%" set "str=%_strinsert%"
    >>%outputfile% echo(!str!
)

set a = b

%a %

 set a=b 

if "b"=="b"

if "b"=="b "

set "a=b"
if "%a%"=="b"