diff options
Diffstat (limited to 'Lib/pathlib/_os.py')
| -rw-r--r-- | Lib/pathlib/_os.py | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/Lib/pathlib/_os.py b/Lib/pathlib/_os.py index bbb019b..61923b5 100644 --- a/Lib/pathlib/_os.py +++ b/Lib/pathlib/_os.py @@ -20,6 +20,15 @@ except ImportError: _winapi = None +__all__ = ["UnsupportedOperation"] + + +class UnsupportedOperation(NotImplementedError): + """An exception that is raised when an unsupported operation is attempted. + """ + pass + + def get_copy_blocksize(infd): """Determine blocksize for fastcopying on Linux. Hopefully the whole file will be copied in a single call. @@ -106,18 +115,30 @@ if _winapi and hasattr(_winapi, 'CopyFile2') and hasattr(os.stat_result, 'st_fil Copy from one file to another using CopyFile2 (Windows only). """ if follow_symlinks: - flags = 0 + _winapi.CopyFile2(source, target, 0) else: + # Use COPY_FILE_COPY_SYMLINK to copy a file symlink. flags = _winapi.COPY_FILE_COPY_SYMLINK try: _winapi.CopyFile2(source, target, flags) return except OSError as err: # Check for ERROR_ACCESS_DENIED - if err.winerror != 5 or not _is_dirlink(source): + if err.winerror == 5 and _is_dirlink(source): + pass + else: raise + + # Add COPY_FILE_DIRECTORY to copy a directory symlink. flags |= _winapi.COPY_FILE_DIRECTORY - _winapi.CopyFile2(source, target, flags) + try: + _winapi.CopyFile2(source, target, flags) + except OSError as err: + # Check for ERROR_INVALID_PARAMETER + if err.winerror == 87: + raise UnsupportedOperation(err) from None + else: + raise else: copyfile = None |