I have written a code in python which uses / to make a particular file in a folder, if I want to use the code in windows it will not work, is there a way by which I can use the code in Windows and Linux.
In python I am using this code:
pathfile=os.path.dirname(templateFile)
rootTree.write(''+pathfile+'/output/log.txt')
When I will use my code in suppose windows machine my code will not work.
How do I use "/" (directory separator) in both Linux and Windows?
Use os.path.join().
Example: os.path.join(pathfile,"output","log.txt").
In your code that would be: rootTree.write(os.path.join(pathfile,"output","log.txt"))
os.path.join uses a more complex logic to match several relative path components together. When you just want to chain them, os.sep.join is the right choice.
os.sep is the delimiter string, no thanks for the confusion.
Use:
import os
print os.sep
to see how separator looks on a current OS.
In your code you can use:
import os
path = os.path.join('folder_name', 'file_name')
You can use os.sep:
>>> import os
>>> os.sep
'/'
os.path.normpath(pathname) should also be mentioned as it converts / path separators into \ separators on Windows. It also collapses redundant uplevel references... i.e., A/B and A/foo/../B and A/./B all become A/B. And if you are Windows, these all become A\B.
os.path.normpath('a/b/c/d/file.ext') than os.path.join('a','b','c','d','file.ext') when I need to specify a long path.
os.path.join just joins anything provided. e.g. join("a/b", "c\d") gives a/b\c\d (on windows). But i can get the expected result with the proper combination of join and normpath, e.g. a\b\c\d (on windows)
from os.path import normpath as normpath # Given a Windows or Linux path, fixes path separators to match the current OS. then I can use something like normpath("a/b/c/d/e/f") which seems cleaner than any alternative.
In Python 3.4+ you can use pathlib, which allows your code to be platform-independent:
from pathlib import Path
path = Path(dir, subdir, filename) # returns a path of the system's path flavour
or, equivalently,
path = Path(dir) / subdir / filename
When you convert a path back to a string, it'll use the native path separators (e.g. backslashes on Windows).
os, and it makes everything easier. Ex path.read_text(encoding="utf8"), path.read_bytes(), path.resolve(), path.unlink(), ...Some useful links that will help you:
sep but couldn't resist myself to post this too (I assumed the OP will found it useful for future work) :)os.pathsep is a semicolon: ;. Recommend editing to remove.Do a import os and then use os.sep
You can use "os.sep "
import os
pathfile=os.path.dirname(templateFile)
directory = str(pathfile)+os.sep+'output'+os.sep+'log.txt'
rootTree.write(directory)
os.path.sep.Don't build directory and file names your self, use python's included libraries.
In this case the relevant one is os.path. Especially join which creates a new pathname from a directory and a file name or directory and split that gets the filename from a full path.
Your example would be
pathfile=os.path.dirname(templateFile)
p = os.path.join(pathfile, 'output')
p = os.path.join( p, 'log.txt')
rootTree.write(p)
If someone is looking for something like this:
He/she wants to know the parent directory and then go to the sub-folders and maybe than to a specific file. If so, I use the following approach.
parent_dir = os.path.pardir
path = os.path.pardir + os.sep + 'utils' + os.sep + 'properties.ini'
print(f'The path to my global properties file is :: {path}')
Output:
..\utils\properties.ini
You can surely look at the whole documentation here : https://docs.python.org/3/library/os.html
I use pathlib for most things, so I like: pathlib.os.sep.
Usually pathlib is the better choice if you don't need os!
/in directory paths. What specific problem are you having? Post some code that illustrates the problem.