LocalFS¶

class paddle.distributed.fleet.utils. LocalFS [source]

A tool of local file system.

Examples

           from paddle.distributed.fleet.utils import LocalFS

client = LocalFS()
subdirs, files = client.ls_dir("./")

ls_dir ( fs_path ) ls_dir¶

List directorys and files under fs_path .

Parameters: fs_path (str) – The local file path.
Returns: Return a 2-tuple, the first is a list of all its subdirectories, and the second is a list of all its subfiles, e.g. ([subdirname1, subdirname1, …], [filename1, filename2, …]).
Return type: Tuple

Examples

             from paddle.distributed.fleet.utils import LocalFS

client = LocalFS()
subdirs, files = client.ls_dir("./")

mkdirs ( fs_path ) mkdirs¶

Create a local directory.

Parameters: fs_path (str) – The local directory path.

Examples

             from paddle.distributed.fleet.utils import LocalFS

client = LocalFS()
client.mkdirs("test_mkdirs")
client.delete("test_mkdirs")

rename ( fs_src_path, fs_dst_path ) rename¶

Rename the file.

Parameters

fs_src_path (str) – The actual name of the file or directory
fs_dst_path (str) – The new name of the file or directory.

Examples

             from paddle.distributed.fleet.utils import LocalFS

client = LocalFS()
client.touch("test_rename_src")
print(client.is_exists("test_rename_src")) # True
client.rename("test_rename_src", "test_rename_dst")
print(client.is_exists("test_rename_src")) # False
print(client.is_exists("test_rename_dst")) # True
client.delete("test_rename_dst")

            

delete ( fs_path ) delete¶

Delete the local file path, whether it’s a file or directory.

Parameters: fs_path (str) – The local file path.

Examples

             from paddle.distributed.fleet.utils import LocalFS

client = LocalFS()
client.mkdirs("test_localFS_mkdirs")
client.delete("test_localFS_mkdirs")

is_file ( fs_path ) is_file¶

Whether the local file path is a file.

Parameters: fs_path (str) – The local file path.
Returns: Return true if the path exists and it’s a file, otherwise return false.
Return type: Bool

Examples

             from paddle.distributed.fleet.utils import LocalFS

client = LocalFS()
client.touch("test_is_file")
print(client.is_file("test_is_file")) # True
client.delete("test_is_file")

            

is_dir ( fs_path ) is_dir¶

Whether the local file path is a directory.

Parameters: fs_path (str) – The local file path.
Returns: Return true if the path exists and it’s a directory, otherwise return false.
Return type: Bool

Examples

             from paddle.distributed.fleet.utils import LocalFS

client = LocalFS()
client.mkdirs("test_is_dir")
print(client.is_dir("test_is_file")) # True
client.delete("test_is_dir")

            

is_exist ( fs_path ) is_exist¶

Whether the local file path exists.

Parameters: fs_path (str) – The local file path.
Returns: Wheter it’s a file or directory, return true if the path exists, otherwise return false.
Return type: Bool

Examples

             from paddle.distributed.fleet.utils import LocalFS

client = LocalFS()
ret = local_fs.is_exist("test_is_exist")

touch ( fs_path, exist_ok=True ) touch¶

Create a local file.

Parameters

fs_path (str) – The local file path.
exist_ok (bool) – When fs_path exists, if exist_ok is set false,
true. (program will throw an Exception. Default is) –

Examples

             from paddle.distributed.fleet.utils import LocalFS

client = LocalFS()
client.touch("test_touch")
client.delete("test_touch")

mv ( src_path, dst_path, overwrite=False, test_exists=False ) mv¶

Move a local file or directory from src_path to dst_path .

Parameters

src_path (str) – Name of the file or directory, that’s needed to be moved.
dst_path (str) – Name of the file or directory to which to move to.
overwrite (bool) – Whether to re-write dst_path if that exists. Default is False.

Examples

             from paddle.distributed.fleet.utils import LocalFS

client = LocalFS()
client.touch("test_mv_src")
client.mv("test_mv_src", "test_mv_dst")
client.delete("test_mv_dst")

            

list_dirs ( fs_path ) list_dirs¶

Only list directorys under fs_path .

Parameters: fs_path (str) – The local file path.
Returns: A list of all its subdirectories, e.g. [subdirname1, subdirname1, …].
Return type: List

Examples

             from paddle.distributed.fleet.utils import LocalFS

client = LocalFS()
subdirs = client.list_dirs("./")