CODEWITHSUNDEEP
pythonfile
user11803465
user11803465

Reputation:

How to write the same data over and over on a file?

I want to make a script that will allow me to write N times the same paragraph of data but I have no idea how to do it, can you help me?

i tried this :

fin = open("C:\\ProgramData\\OutilTestObjets3D\\MaquetteCB-2019\\DataSet\\1212.osg", "rt")
fout = open("C:\\ProgramData\\OutilTestObjets3D\\MaquetteCB-2019\\DataSet\\testreecrtiure.osg", "wt")

for line in fin:
             fout.write(line.write("...."))

but i dont know if i have to use a loop or something like this

Upvotes: 0

Views: 37

Answers (2)

tripleee
tripleee

Reputation: 189507

Here's a simple implementation which writes the input file 42 times.

with open('output', 'w') as fout:
    for x in range(42):
        with open('input', 'r') as fin:
            for line in fin:
                fout.write(line)

Instead of repeatedly closing and reopening the input file, you can rewind it with seek() if you wish; but I prefer this approach, which also takes care of automatically closing both files at the end, which you forgot to do in your code.

(You should probably avoid hard-coding absolute paths in your code.)

Upvotes: 1

user12013935
user12013935

Reputation: 15

Try this:

fin = open("C:\\ProgramData\\OutilTestObjets3D\\MaquetteCB-2019\\DataSet\\1212.osg", "r")
fout = open("C:\\ProgramData\\OutilTestObjets3D\\MaquetteCB-2019\\DataSet\\testreecrtiure.osg", "w")


for line in fin:
    fout.write(line)

fin.seek(0,0)

for line in fin:
    fout.write(line)

Once you finish "read and write", the pointer of "fin" should be moved to the beginning.

So you need to add this line：fin.seek(0,0) before you start another "read and write".

Here is the code of write N times

fin = open("C:\\ProgramData\\OutilTestObjets3D\\MaquetteCB-2019\\DataSet\\1212.osg", "r")
fout = open("C:\\ProgramData\\OutilTestObjets3D\\MaquetteCB-2019\\DataSet\\testreecrtiure.osg", "w")

N=5  # For example, repeat 5 times
for count in range(0,N):
    for line in fin:
        fout.write(line)
    fin.seek(0,0)

Upvotes: 0

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