Program to make a file clean itself
up vote
0
down vote
favorite
I have the following program:
fhandle=open(filename,'r')
fhandle2=open(filename2,'w')
data=fhandle.read()
data=data.replace(''," ")
data=data.replace(''," ")
fhandle2.write(data)
This gets the job done, removing the '' from a string, however it involves 2 files. How can I make it so the first file cleans itself without the need for a second file?
python
edited Nov 11 at 3:49
eyllanesc
72.4k93054
asked Nov 11 at 3:37
Nathan Mndz
265
add a comment |
up vote
0
down vote
favorite
I have the following program:
fhandle=open(filename,'r')
fhandle2=open(filename2,'w')
data=fhandle.read()
data=data.replace(''," ")
data=data.replace(''," ")
fhandle2.write(data)
This gets the job done, removing the '' from a string, however it involves 2 files. How can I make it so the first file cleans itself without the need for a second file?
python
edited Nov 11 at 3:49
eyllanesc
72.4k93054
asked Nov 11 at 3:37
Nathan Mndz
265
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I have the following program:
fhandle=open(filename,'r')
fhandle2=open(filename2,'w')
data=fhandle.read()
data=data.replace(''," ")
data=data.replace(''," ")
fhandle2.write(data)
This gets the job done, removing the '' from a string, however it involves 2 files. How can I make it so the first file cleans itself without the need for a second file?
python
edited Nov 11 at 3:49
eyllanesc
72.4k93054
asked Nov 11 at 3:37
Nathan Mndz
265
I have the following program:
fhandle=open(filename,'r')
fhandle2=open(filename2,'w')
data=fhandle.read()
data=data.replace(''," ")
data=data.replace(''," ")
fhandle2.write(data)
This gets the job done, removing the '' from a string, however it involves 2 files. How can I make it so the first file cleans itself without the need for a second file?
python
python
edited Nov 11 at 3:49
eyllanesc
72.4k93054
asked Nov 11 at 3:37
Nathan Mndz
265
edited Nov 11 at 3:49
eyllanesc
72.4k93054
asked Nov 11 at 3:37
Nathan Mndz
265
edited Nov 11 at 3:49
eyllanesc
72.4k93054
edited Nov 11 at 3:49
eyllanesc
72.4k93054
edited Nov 11 at 3:49
eyllanesc
72.4k93054
72.4k93054
asked Nov 11 at 3:37
Nathan Mndz
265
asked Nov 11 at 3:37
Nathan Mndz
265
asked Nov 11 at 3:37
Nathan Mndz
265
265
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
up vote
2
down vote
accepted
with open(filename, 'r+') as file:
data=file.read()
data=data.replace(''," ")
data=data.replace(''," ")
file.write(data)
That should do the trick. Using file mode r+ allows you to read and write to the same file without having to open up 2 separate files.
answered Nov 11 at 3:54
Jason
812
Thank you, your answer gets the job done but it places the fixed text underneath the old text. I end up having two texts simultaneously. Is there a way I can bypass this?
– Nathan Mndz
Nov 11 at 4:13
1
file.seek(0)just before youfile.write(data). It'll reset the cursor back to the start of the file.
– Idlehands
Nov 11 at 4:54
add a comment |
up vote
1
down vote
Since you are loading the file into memory and not running into issues, you should be find truncating the first open file and just writing to it:
file.seek(0) #navigates to the beginning of the file
file.truncate() #deletes the contents
From here you can write to it as you would any other file. This file should be opened in read and write. (r+)
answered Nov 11 at 3:47
bad
419
1
The mode needs to be r+. w+ will destroy the original contents.
– John Zwinck
Nov 11 at 3:48
@JohnZwinck changed it, thanks for letting me know
– bad
Nov 12 at 7:13
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
accepted
with open(filename, 'r+') as file:
data=file.read()
data=data.replace(''," ")
data=data.replace(''," ")
file.write(data)
That should do the trick. Using file mode r+ allows you to read and write to the same file without having to open up 2 separate files.
answered Nov 11 at 3:54
Jason
812
Thank you, your answer gets the job done but it places the fixed text underneath the old text. I end up having two texts simultaneously. Is there a way I can bypass this?
– Nathan Mndz
Nov 11 at 4:13
1
file.seek(0)just before youfile.write(data). It'll reset the cursor back to the start of the file.
– Idlehands
Nov 11 at 4:54
add a comment |
up vote
2
down vote
accepted
with open(filename, 'r+') as file:
data=file.read()
data=data.replace(''," ")
data=data.replace(''," ")
file.write(data)
That should do the trick. Using file mode r+ allows you to read and write to the same file without having to open up 2 separate files.
answered Nov 11 at 3:54
Jason
812
Thank you, your answer gets the job done but it places the fixed text underneath the old text. I end up having two texts simultaneously. Is there a way I can bypass this?
– Nathan Mndz
Nov 11 at 4:13
1
file.seek(0)just before youfile.write(data). It'll reset the cursor back to the start of the file.
– Idlehands
Nov 11 at 4:54
add a comment |
up vote
2
down vote
accepted
up vote
2
down vote
accepted
with open(filename, 'r+') as file:
data=file.read()
data=data.replace(''," ")
data=data.replace(''," ")
file.write(data)
That should do the trick. Using file mode r+ allows you to read and write to the same file without having to open up 2 separate files.
answered Nov 11 at 3:54
Jason
812
with open(filename, 'r+') as file:
data=file.read()
data=data.replace(''," ")
data=data.replace(''," ")
file.write(data)
That should do the trick. Using file mode r+ allows you to read and write to the same file without having to open up 2 separate files.
answered Nov 11 at 3:54
Jason
812
answered Nov 11 at 3:54
Jason
812
answered Nov 11 at 3:54
Jason
812
answered Nov 11 at 3:54
Jason
812
812
Thank you, your answer gets the job done but it places the fixed text underneath the old text. I end up having two texts simultaneously. Is there a way I can bypass this?
– Nathan Mndz
Nov 11 at 4:13
1
file.seek(0)just before youfile.write(data). It'll reset the cursor back to the start of the file.
– Idlehands
Nov 11 at 4:54
add a comment |
Thank you, your answer gets the job done but it places the fixed text underneath the old text. I end up having two texts simultaneously. Is there a way I can bypass this?
– Nathan Mndz
Nov 11 at 4:13
1
file.seek(0)just before youfile.write(data). It'll reset the cursor back to the start of the file.
– Idlehands
Nov 11 at 4:54
Thank you, your answer gets the job done but it places the fixed text underneath the old text. I end up having two texts simultaneously. Is there a way I can bypass this?
– Nathan Mndz
Nov 11 at 4:13
Thank you, your answer gets the job done but it places the fixed text underneath the old text. I end up having two texts simultaneously. Is there a way I can bypass this?
– Nathan Mndz
Nov 11 at 4:13
1
1
file.seek(0) just before you file.write(data). It'll reset the cursor back to the start of the file.– Idlehands
Nov 11 at 4:54
file.seek(0) just before you file.write(data). It'll reset the cursor back to the start of the file.– Idlehands
Nov 11 at 4:54
add a comment |
up vote
1
down vote
Since you are loading the file into memory and not running into issues, you should be find truncating the first open file and just writing to it:
file.seek(0) #navigates to the beginning of the file
file.truncate() #deletes the contents
From here you can write to it as you would any other file. This file should be opened in read and write. (r+)
answered Nov 11 at 3:47
bad
419
1
The mode needs to be r+. w+ will destroy the original contents.
– John Zwinck
Nov 11 at 3:48
@JohnZwinck changed it, thanks for letting me know
– bad
Nov 12 at 7:13
add a comment |
up vote
1
down vote
Since you are loading the file into memory and not running into issues, you should be find truncating the first open file and just writing to it:
file.seek(0) #navigates to the beginning of the file
file.truncate() #deletes the contents
From here you can write to it as you would any other file. This file should be opened in read and write. (r+)
answered Nov 11 at 3:47
bad
419
1
The mode needs to be r+. w+ will destroy the original contents.
– John Zwinck
Nov 11 at 3:48
@JohnZwinck changed it, thanks for letting me know
– bad
Nov 12 at 7:13
add a comment |
up vote
1
down vote
up vote
1
down vote
Since you are loading the file into memory and not running into issues, you should be find truncating the first open file and just writing to it:
file.seek(0) #navigates to the beginning of the file
file.truncate() #deletes the contents
From here you can write to it as you would any other file. This file should be opened in read and write. (r+)
answered Nov 11 at 3:47
bad
419
Since you are loading the file into memory and not running into issues, you should be find truncating the first open file and just writing to it:
file.seek(0) #navigates to the beginning of the file
file.truncate() #deletes the contents
From here you can write to it as you would any other file. This file should be opened in read and write. (r+)
answered Nov 11 at 3:47
bad
419
edited Nov 12 at 7:13
answered Nov 11 at 3:47
bad
419
answered Nov 11 at 3:47
bad
419
answered Nov 11 at 3:47
bad
419
419
1
The mode needs to be r+. w+ will destroy the original contents.
– John Zwinck
Nov 11 at 3:48
@JohnZwinck changed it, thanks for letting me know
– bad
Nov 12 at 7:13
add a comment |
1
The mode needs to be r+. w+ will destroy the original contents.
– John Zwinck
Nov 11 at 3:48
@JohnZwinck changed it, thanks for letting me know
– bad
Nov 12 at 7:13
1
1
The mode needs to be r+. w+ will destroy the original contents.
– John Zwinck
Nov 11 at 3:48
The mode needs to be r+. w+ will destroy the original contents.
– John Zwinck
Nov 11 at 3:48
@JohnZwinck changed it, thanks for letting me know
– bad
Nov 12 at 7:13
@JohnZwinck changed it, thanks for letting me know
– bad
Nov 12 at 7:13
add a comment |
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