This is a pre-production deployment of Warehouse, however changes made here WILL affect the production instance of PyPI.
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Project Description

pathlib_revised

Expand the origin Python pathlib module:

  • work-a-round for Windows MAX_PATH limit, by adding \\?\ path prefix
  • add missing stuff, like: makedirs, utime, scandir etc.

There is also the class, called DirEntryPath that holds more cached information than os.DirEntry

  • python 3.4 or newer only
  • Beta state

Please, try, fork and contribute! ;)

travis-ci.org/jedie/pathlib_revised
ci.appveyor.com/project/jedie/pathlib_revised
coveralls.io/r/jedie/pathlib_revised
requires.io/github/jedie/pathlib_revised/requirements/

Windows MAX_PATH

There is a limit in the Windows API: Path can’t be longer than 259 characters (called: “MAX_PATH”). The work-a-round is to add the prefix \\?\ to every absolute path, see:

The Path2() class has the additional property extended_path:

>>> from pathlib_revised import Path2
>>> p=Path2("c:\foo\bar")
>>> p.extended_path
'\\?\c:\foo\bar'

All existing methods of Path2() will internally use extended_path, so that the MAX_PATH limit is not longer a problem.

extended_path exist also under Posix-Systems, but it’s the same as path:

>>> p=Path2("/foo/bar")
>>> p.path
'/foo/bar'
>>> p.extended_path
'/foo/bar'

Additional methods

<pre> >>> Path2(“/”).listdir() [‘sbin’, ‘boot’, ‘tmp’, ‘sys’, ‘var’, ‘dev’, ‘usr’, ‘root’, ‘home’, …, ‘initrd.img’, ‘vmlinuz’] </pre> * shutil.**`copyfile() <https://docs.python.org/3/library/shutil.html#shutil.copyfile>`_**

<pre> >>> Path2(“a_file.txt”).copyfile(Path2(“a_file_copy.txt”)) </pre> * os.path.**`expanduser() <https://docs.python.org/3/library/os.path.html#os.path.expanduser>`_**

<pre> >>> p=Path2(“~”, “sub”, “dir”) >>> p PosixPath2(‘~/sub/dir’) >>> p.expanduser() PosixPath2(‘/home/username/sub/dir’) </pre> * os.**`link() <https://docs.python.org/3/library/os.html#os.link>`_**

<pre> >>> Path2(“source.txt”).link(Path2(“hardlinked.txt”)) </pre> * os.**`makedirs() <https://docs.python.org/3/library/os.html#os.makedirs>`_**

<pre> >>> Path2(“a”, “new”, “path”).makedirs() </pre> * os.**`utime() <https://docs.python.org/3/library/os.html#os.utime>`_**

<pre> >>> mtime = 111111111 # UTC: 1973-07-10 00:11:51 >>> atime = 222222222 # UTC: 1977-01-16 01:23:42

>>> p.Path2("dir/or/file")
>>> p.utime(times=(atime, mtime))
>>> stat = p.stat()
>>> stat.st_atime
222222222
>>> stat.st_mtime
111111111
</pre> * os.**`scandir() <https://docs.python.org/3/library/os.html#os.scandir()>`_**

<pre> >>> p=Path2(“/foo/bar”) >>> for dir_item in p.scandir(): … print(dir_item) … <PosixDirEntry: ‘filename’> <PosixDirEntry: ‘directory’> <PosixDirEntry: ‘…’> </pre> It’s a generator that yields os.**`DirEntry <https://docs.python.org/3/library/os.html#os.DirEntry>`_** instances. scandir is new in Python 3.5, but in Path2() is will fall-back to the external scandir module.

You miss a method? Please, fork, implement, add tests and send a pull request! ;)

misc

Path2() hat the .path property, that is normally new in Python 3.4.5 and 3.5.2 So you can use it with older Python Version, too.

DirEntryPath

The DirEntryPath holds more cached information:

instance**.dir_entry** os.DirEntry() instance
instance**.path** str or bytes of the path, from: os.DirEntry()**.path**
instance**.is_symlink bool from os.DirEntry()**.is_symlink()**
instance**.is_file bool from os.DirEntry()**.is_file(follow_symlinks=False)**
instance**.is_dir bool from os.DirEntry()**.is_dir(follow_symlinks=False)**
instance**.stat bool from os.DirEntry()**.stat(follow_symlinks=False)**
instance**.path_instance Path2() instance
instance**.resolved_path Path2() instance from .resolve() (If resolve errored: None)
instance**.resolve_error The error Instance, if .resolve() failed.

Create a instance by feeding a os.DirEntry instance, e.g.:

>>> from pathlib_revised import Path2, DirEntryPath
>>> src_path = Path2("foo/")
>>> for dir_entry in src_path.scandir():
...     dir_entry_path = DirEntryPath(dir_entry)
...     print(dir_entry_path.pformat())
 *** <DirEntryPath foo/file1> :
path.......: 'foo/file1'
path instance..: PosixPath2('foo/file1')
resolved path..: PosixPath2('/home/bar/foo/file1')
resolve error..: None
different path.: True
is symlink.....: False
is file........: False
is dir.........: True
stat.size......: 38
 *** <DirEntryPath foo/BrokenSymlink.ext> :
path.......: 'foo/BrokenSymlink.ext'
path instance..: PosixPath2('foo/BrokenSymlink.ext')
resolved path..: None
resolve error..: FileNotFoundError(2, 'No such file or directory')
different path.: True
is symlink.....: True
is file........: False
is dir.........: False
stat.size......: 15
 *** <DirEntryPath foo/README.creole> :
path.......: 'foo/README.creole'
path instance..: PosixPath2('foo/README.creole')
resolved path..: PosixPath2('/home/bar/foo/README.creole')
resolve error..: None
different path.: True
is symlink.....: False
is file........: True
is dir.........: False
stat.size......: 4802

History

  • 08.02.2016 - v0.1.0

Release History

Release History

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pathlib_revised-0.1.0-py3-none-any.whl (15.1 kB) Copy SHA256 Checksum SHA256 py3 Wheel Feb 8, 2016
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