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"""Simplified function-based API for importlib.resources"""
import warnings
from ._common import files, as_file
_MISSING = object()
def open_binary(anchor, *path_names):
"""Open for binary reading the *resource* within *package*."""
return _get_resource(anchor, path_names).open('rb')
def open_text(anchor, *path_names, encoding=_MISSING, errors='strict'):
"""Open for text reading the *resource* within *package*."""
encoding = _get_encoding_arg(path_names, encoding)
resource = _get_resource(anchor, path_names)
return resource.open('r', encoding=encoding, errors=errors)
def read_binary(anchor, *path_names):
"""Read and return contents of *resource* within *package* as bytes."""
return _get_resource(anchor, path_names).read_bytes()
def read_text(anchor, *path_names, encoding=_MISSING, errors='strict'):
"""Read and return contents of *resource* within *package* as str."""
encoding = _get_encoding_arg(path_names, encoding)
resource = _get_resource(anchor, path_names)
return resource.read_text(encoding=encoding, errors=errors)
def path(anchor, *path_names):
"""Return the path to the *resource* as an actual file system path."""
return as_file(_get_resource(anchor, path_names))
def is_resource(anchor, *path_names):
"""Return ``True`` if there is a resource named *name* in the package,
Otherwise returns ``False``.
"""
return _get_resource(anchor, path_names).is_file()
def contents(anchor, *path_names):
"""Return an iterable over the named resources within the package.
The iterable returns :class:`str` resources (e.g. files).
The iterable does not recurse into subdirectories.
"""
warnings.warn(
"importlib.resources.contents is deprecated. "
"Use files(anchor).iterdir() instead.",
DeprecationWarning,
stacklevel=1,
)
return (resource.name for resource in _get_resource(anchor, path_names).iterdir())
def _get_encoding_arg(path_names, encoding):
# For compatibility with versions where *encoding* was a positional
# argument, it needs to be given explicitly when there are multiple
# *path_names*.
# This limitation can be removed in Python 3.15.
if encoding is _MISSING:
if len(path_names) > 1:
raise TypeError(
"'encoding' argument required with multiple path names",
)
else:
return 'utf-8'
return encoding
def _get_resource(anchor, path_names):
if anchor is None:
raise TypeError("anchor must be module or string, got None")
return files(anchor).joinpath(*path_names)