Module unitexpr.errors
Module providing custom error classes.
None
View Source
"""
Module providing custom error classes.
"""
class OperationNotSupported(Exception):
"""
Error raised if an arithmetic operation involving unit expressions
is not supported.
Attributes:
- `left`: Left operand.
- `right`: Right operand.
- `operator`: Arithmetic operator used in the expression.
- `message`: Explanation of the error.
"""
# pylint: disable=too-many-function-args
def __init__(self, left, right, operator, addon_message=""):
self.left = left
self.right = right
self.operator = operator
self.addon_message = addon_message
super().__init__(self)
def __str__(self):
"""
Returns the error message string.
"""
return (
"Could not evaluate: "
+ f"{self.left.__repr__()} {self.operator}"
+ f" {self.right.__repr__()} ."
+ self.addon_message
)
def __repr__(self):
"""
Return the error message string.
"""
return self.__str__(self)
def invert(self):
"""
Changes the order of the operands. (left, right) = (right, left)
"""
(self.left, self.right) = (self.right, self.left)
return self
Classes
OperationNotSupported
class OperationNotSupported(
left,
right,
operator,
addon_message=''
)
Attributes
| Name | Type | Description | Default |
|---|---|---|---|
- left |
None | Left operand. | None |
- right |
None | Right operand. | None |
- operator |
None | Arithmetic operator used in the expression. | None |
- message |
None | Explanation of the error. | None |
View Source
class OperationNotSupported(Exception):
"""
Error raised if an arithmetic operation involving unit expressions
is not supported.
Attributes:
- `left`: Left operand.
- `right`: Right operand.
- `operator`: Arithmetic operator used in the expression.
- `message`: Explanation of the error.
"""
# pylint: disable=too-many-function-args
def __init__(self, left, right, operator, addon_message=""):
self.left = left
self.right = right
self.operator = operator
self.addon_message = addon_message
super().__init__(self)
def __str__(self):
"""
Returns the error message string.
"""
return (
"Could not evaluate: "
+ f"{self.left.__repr__()} {self.operator}"
+ f" {self.right.__repr__()} ."
+ self.addon_message
)
def __repr__(self):
"""
Return the error message string.
"""
return self.__str__(self)
def invert(self):
"""
Changes the order of the operands. (left, right) = (right, left)
"""
(self.left, self.right) = (self.right, self.left)
return self
Ancestors (in MRO)
- builtins.Exception
- builtins.BaseException
Class variables
args
Methods
invert
def invert(
self
)
Changes the order of the operands. (left, right) = (right, left)
View Source
def invert(self):
"""
Changes the order of the operands. (left, right) = (right, left)
"""
(self.left, self.right) = (self.right, self.left)
return self
with_traceback
def with_traceback(
...
)
Exception.with_traceback(tb) --
set self.traceback to tb and return self.