throw¶
Description¶
Raises a specified exception at the point where generator was paused, and returns the next value yielded by the generator function.
Syntax¶
generator. throw(type[, value[, traceback]])
- type
- Required. Type of execpetion.
- value
- Optional. The value of the error.
- traceback
- Optional. A traceback object.
Return Value¶
#TODO
Time Complexity¶
#TODO
Remarks¶
If the generator exits without yielding another value, a StopIteration exception is raised. If the generator function does not catch the passed-in exception, or raises a different exception, then that exception propagates to the caller.
Example 1¶
>>> # this example shows how to use throw method
>>> g = (n**2 for n in (1, 2, 3))
>>> g.throw(TypeError)
Traceback (most recent call last):
File "<interactive input>", line 1, in <module>
File "<interactive input>", line 1, in <genexpr>
TypeError
Example 2¶
>>> # this example shows how to use throw method with value argument
>>> g = (n**2 for n in (1, 2, 3))
>>> g.throw(TypeError, 'ERROR')
Traceback (most recent call last):
File "<interactive input>", line 1, in <module>
File "<interactive input>", line 1, in <genexpr>
TypeError: ERROR
See Also¶
#TODO