Erasing and modifying last/specific lines of file in python
For example i have this file with the following text:
Hello
One
two
Goodbye
And I want to add "three" between "two" and "Goodbye"
How i can do this?
python file
asked Nov 13 '18 at 18:58
xChapxxChapx
12
add a comment |
For example i have this file with the following text:
Hello
One
two
Goodbye
And I want to add "three" between "two" and "Goodbye"
How i can do this?
python file
asked Nov 13 '18 at 18:58
xChapxxChapx
12
2
Nothing shows up in Google for 'Python modify text files'?
– dfundako
Nov 13 '18 at 19:01
2
Tried anything? opening file? reading lines? an attempt to change?
– Muhammad Ahmad
Nov 13 '18 at 19:02
1
@MuhammadAhmad Clearly not.
– dfundako
Nov 13 '18 at 19:02
Should have specified : Writing on the file overwrites what was previously written Using append just adds text at the end of the file
– xChapx
Nov 13 '18 at 20:15
add a comment |
For example i have this file with the following text:
Hello
One
two
Goodbye
And I want to add "three" between "two" and "Goodbye"
How i can do this?
python file
asked Nov 13 '18 at 18:58
xChapxxChapx
12
For example i have this file with the following text:
Hello
One
two
Goodbye
And I want to add "three" between "two" and "Goodbye"
How i can do this?
python file
python file
asked Nov 13 '18 at 18:58
xChapxxChapx
12
asked Nov 13 '18 at 18:58
xChapxxChapx
12
asked Nov 13 '18 at 18:58
xChapxxChapx
12
asked Nov 13 '18 at 18:58
xChapxxChapx
12
asked Nov 13 '18 at 18:58
xChapxxChapx
12
12
2
Nothing shows up in Google for 'Python modify text files'?
– dfundako
Nov 13 '18 at 19:01
2
Tried anything? opening file? reading lines? an attempt to change?
– Muhammad Ahmad
Nov 13 '18 at 19:02
1
@MuhammadAhmad Clearly not.
– dfundako
Nov 13 '18 at 19:02
Should have specified : Writing on the file overwrites what was previously written Using append just adds text at the end of the file
– xChapx
Nov 13 '18 at 20:15
add a comment |
2
Nothing shows up in Google for 'Python modify text files'?
– dfundako
Nov 13 '18 at 19:01
2
Tried anything? opening file? reading lines? an attempt to change?
– Muhammad Ahmad
Nov 13 '18 at 19:02
1
@MuhammadAhmad Clearly not.
– dfundako
Nov 13 '18 at 19:02
Should have specified : Writing on the file overwrites what was previously written Using append just adds text at the end of the file
– xChapx
Nov 13 '18 at 20:15
2
2
Nothing shows up in Google for 'Python modify text files'?
– dfundako
Nov 13 '18 at 19:01
Nothing shows up in Google for 'Python modify text files'?
– dfundako
Nov 13 '18 at 19:01
2
2
Tried anything? opening file? reading lines? an attempt to change?
– Muhammad Ahmad
Nov 13 '18 at 19:02
Tried anything? opening file? reading lines? an attempt to change?
– Muhammad Ahmad
Nov 13 '18 at 19:02
1
1
@MuhammadAhmad Clearly not.
– dfundako
Nov 13 '18 at 19:02
@MuhammadAhmad Clearly not.
– dfundako
Nov 13 '18 at 19:02
Should have specified : Writing on the file overwrites what was previously written Using append just adds text at the end of the file
– xChapx
Nov 13 '18 at 20:15
Should have specified : Writing on the file overwrites what was previously written Using append just adds text at the end of the file
– xChapx
Nov 13 '18 at 20:15
add a comment |
1 Answer
1
active
oldest
votes
First of all you should read the file content: (assuming your file is in the same folder as your .py file)
name = "YOUR FILE NAME" # including extension, such as "myfile.txt"
data =
filename = os.path.abspath(os.path.join(name))
if os.path.exists(filename):
with open(filename) as fin:
for entry in fin.readlines():
data.append(entry.rstrip())
After you should insert the other element in the data array (in this case on the index 3)
data.insert(3, "three")
As last point, just save the file with this new information:
with open(filename, 'w') as fout:
for entry in data:
fout.write(entry + 'n')
answered Nov 13 '18 at 19:13
Luan NaufalLuan Naufal
4908
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
First of all you should read the file content: (assuming your file is in the same folder as your .py file)
name = "YOUR FILE NAME" # including extension, such as "myfile.txt"
data =
filename = os.path.abspath(os.path.join(name))
if os.path.exists(filename):
with open(filename) as fin:
for entry in fin.readlines():
data.append(entry.rstrip())
After you should insert the other element in the data array (in this case on the index 3)
data.insert(3, "three")
As last point, just save the file with this new information:
with open(filename, 'w') as fout:
for entry in data:
fout.write(entry + 'n')
answered Nov 13 '18 at 19:13
Luan NaufalLuan Naufal
4908
add a comment |
First of all you should read the file content: (assuming your file is in the same folder as your .py file)
name = "YOUR FILE NAME" # including extension, such as "myfile.txt"
data =
filename = os.path.abspath(os.path.join(name))
if os.path.exists(filename):
with open(filename) as fin:
for entry in fin.readlines():
data.append(entry.rstrip())
After you should insert the other element in the data array (in this case on the index 3)
data.insert(3, "three")
As last point, just save the file with this new information:
with open(filename, 'w') as fout:
for entry in data:
fout.write(entry + 'n')
answered Nov 13 '18 at 19:13
Luan NaufalLuan Naufal
4908
add a comment |
First of all you should read the file content: (assuming your file is in the same folder as your .py file)
name = "YOUR FILE NAME" # including extension, such as "myfile.txt"
data =
filename = os.path.abspath(os.path.join(name))
if os.path.exists(filename):
with open(filename) as fin:
for entry in fin.readlines():
data.append(entry.rstrip())
After you should insert the other element in the data array (in this case on the index 3)
data.insert(3, "three")
As last point, just save the file with this new information:
with open(filename, 'w') as fout:
for entry in data:
fout.write(entry + 'n')
answered Nov 13 '18 at 19:13
Luan NaufalLuan Naufal
4908
First of all you should read the file content: (assuming your file is in the same folder as your .py file)
name = "YOUR FILE NAME" # including extension, such as "myfile.txt"
data =
filename = os.path.abspath(os.path.join(name))
if os.path.exists(filename):
with open(filename) as fin:
for entry in fin.readlines():
data.append(entry.rstrip())
After you should insert the other element in the data array (in this case on the index 3)
data.insert(3, "three")
As last point, just save the file with this new information:
with open(filename, 'w') as fout:
for entry in data:
fout.write(entry + 'n')
answered Nov 13 '18 at 19:13
Luan NaufalLuan Naufal
4908
answered Nov 13 '18 at 19:13
Luan NaufalLuan Naufal
4908
answered Nov 13 '18 at 19:13
Luan NaufalLuan Naufal
4908
answered Nov 13 '18 at 19:13
Luan NaufalLuan Naufal
4908
4908
add a comment |
add a comment |
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2
Nothing shows up in Google for 'Python modify text files'?
– dfundako
Nov 13 '18 at 19:01
2
Tried anything? opening file? reading lines? an attempt to change?
– Muhammad Ahmad
Nov 13 '18 at 19:02
1
@MuhammadAhmad Clearly not.
– dfundako
Nov 13 '18 at 19:02
Should have specified : Writing on the file overwrites what was previously written Using append just adds text at the end of the file
– xChapx
Nov 13 '18 at 20:15