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# ``twisted`.`trial`.`_synctest`.`_Warning``

class documentation

`class _Warning: (source)`

Constructor: `_Warning(message, category, filename, lineno)`

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A `_Warning` instance represents one warning emitted through the Python warning system (`warnings`). This is used to insulate callers of `_collectWarnings` from changes to the Python warnings system which might otherwise require changes to the warning objects that function passes to the observer object it accepts.

Method | `__init__` | Undocumented
Instance Variable | `category` | The `Warning` subclass which was passed as the category parameter to `warnings.warn`.
Instance Variable | `filename` | The name of the file containing the definition of the code object which was `stacklevel` frames above the call to `warnings.warn`, where `stacklevel` is the value of the `stacklevel` parameter passed to `warnings.warn`...
Instance Variable | `lineno` | The source line associated with the active instruction of the code object object which was `stacklevel` frames above the call to `warnings.warn`, where `stacklevel` is the value of the `stacklevel` parameter passed to ...
Instance Variable | `message` | The string which was passed as the message parameter to `warnings.warn`.

def __init__(self, message, category, filename, lineno): (source)

Undocumented

category = (source)

The `Warning` subclass which was passed as the category parameter to `warnings.warn`.

filename = (source)

The name of the file containing the definition of the code object which was `stacklevel` frames above the call to `warnings.warn`, where `stacklevel` is the value of the `stacklevel` parameter passed to `warnings.warn`.

lineno = (source)

The source line associated with the active instruction of the code object object which was `stacklevel` frames above the call to `warnings.warn`, where `stacklevel` is the value of the `stacklevel` parameter passed to `warnings.warn`.

message = (source)

The string which was passed as the message parameter to `warnings.warn`.