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"""Shapely errors."""
import threading
from shapely.lib import GEOSException, ShapelyError, _setup_signal_checks # noqa: F401
def setup_signal_checks(interval=10000):
"""Enable Python signal checks in the ufunc inner loops.
Doing so allows termination (using CTRL+C) of operations on large arrays of
vectors.
Parameters
----------
interval : int, default 10000
Check for interrupts every x iterations. The higher the number, the
slower shapely will respond to a signal. However, at low values there
will be a negative effect on performance. The default of 10000 does not
have any measureable effects on performance.
Notes
-----
For more information on signals consult the Python docs:
https://docs.python.org/3/library/signal.html
"""
if interval <= 0:
raise ValueError("Signal checks interval must be greater than zero.")
_setup_signal_checks(interval, threading.main_thread().ident)
class UnsupportedGEOSVersionError(ShapelyError):
"""Raised when the GEOS library version does not support a certain operation."""
class DimensionError(ShapelyError):
"""An error in the number of coordinate dimensions."""
class TopologicalError(ShapelyError):
"""A geometry is invalid or topologically incorrect."""
class ShapelyDeprecationWarning(FutureWarning):
"""Warning for features that will be removed or changed in a future release."""
class EmptyPartError(ShapelyError):
"""An error signifying an empty part was encountered when creating a multi-part."""
class GeometryTypeError(ShapelyError):
"""An error raised when the geometry has an unrecognized or inappropriate type."""
def __getattr__(name):
import warnings
# Alias Shapely 1.8 error classes to ShapelyError with deprecation warning
if name in [
"ReadingError",
"WKBReadingError",
"WKTReadingError",
"PredicateError",
"InvalidGeometryError",
]:
warnings.warn(
f"{name} is deprecated and will be removed in a future version. "
"Use ShapelyError instead (functions previously raising {name} "
"will now raise a ShapelyError instead).",
FutureWarning,
stacklevel=2,
)
return ShapelyError
raise AttributeError(f"module 'shapely.errors' has no attribute '{name}'")
|
