getting a full path string from a pathlib.PurePath object

getting a full path string from a pathlib.PurePath object - Printable Version

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getting a full path string from a pathlib.PurePath object - Skaperen - Mar-20-2018

is the proper way to get the plain string path of a pathlib.PurePath object or pathlib.Path object to pass it to str() and use what that returns? that is all i can find. the documentation (i have the 3.5.2 PDF) only describes the .name attribute for part of the path. i suppose i could join the .parts value in some way.

    import pathlib
    ...
    fp = pathlib.Path('foo/bar')
    ...
    fn = str(fp)

this is only the 2nd time using this module and the 1st time didn't need this.

RE: getting a full path string from a pathlib.PurePath object - wavic - Mar-20-2018

In [1]: import pathlib

In [2]: path = pathlib.Path('.')

In [3]: full_path = path.absolute()

In [4]: my_path = full_path.as_posix()

In [5]: print(my_path)
/home/victor

In [6]: type(my_path)
Out[6]: str

RE: getting a full path string from a pathlib.PurePath object - Larz60+ - Mar-20-2018

or use path.resolve()

RE: getting a full path string from a pathlib.PurePath object - Skaperen - Mar-21-2018

(Mar-20-2018, 11:08 AM)Larz60+ Wrote: or use path.resolve()

that appears to return a Path object instead of a string, although it might be good to apply this first.

edit:

maybe ... if the object does not exist, .resolve() raises a fit.

just to be sure it's understood, the code has a pathlib.Path() or pathlib.PurePath() object and needs a string to work with and .name is not the full path.

RE: getting a full path string from a pathlib.PurePath object - Larz60+ - Mar-21-2018

Since pathlib returns an object, you can also do things like:

homepage = Path('.')
doc = homepage / '..' / 'doc'
# Create the directory if it doesn't already exist
doc.mkdir(exist_ok=True)
datapath = homepage / 'data'
datapath.mkdir(exist_ok=True)

input_file = datapath / 'MyFile.txt'

with input_file.open() as f:
    for line in f:
        print(line)

RE: getting a full path string from a pathlib.PurePath object - wavic - Mar-21-2018

Hah, didn't know that it has open() method! Smile

RE: getting a full path string from a pathlib.PurePath object - DeaD_EyE - Mar-21-2018

What I don't like is the method relative_to.
This method works only, if the given argument is a subpath:

pathlib.Path.home().relative_to('/dev')

Error:
ValueError: '/home/andre' does not start with '/dev'

Doing the same with the os.path

home = os.path.expanduser('~')
print(os.path.relpath(home, '/dev'))

Output:
../home/andre

RE: getting a full path string from a pathlib.PurePath object - Skaperen - Mar-21-2018

but i needed a real string and the only thing i could find was attribute method .__str__() which is what str() uses.

RE: getting a full path string from a pathlib.PurePath object - wavic - Mar-21-2018

(Mar-21-2018, 08:12 AM)Skaperen Wrote: but i needed a real string and the only thing i could find was attribute method .__str__() which is what str() uses.

Have you noticed this: https://python-forum.io/Thread-getting-a-full-path-string-from-a-pathlib-PurePath-object?pid=42634#pid42634 ?

RE: getting a full path string from a pathlib.PurePath object - DeaD_EyE - Mar-21-2018

str(your_path.resolve())

The method resolve returns a new Path object.
Path objects have a magic method for str and bytes (__str__, __bytes__).

str(pathobject) -> returns a str of the path