RedirectedStreams

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class abjad.system.RedirectedStreams.RedirectedStreams(stdout=None, stderr=None)

A context manager for capturing stdout and stderr output.

>>> from io import StringIO
>>> string_io = StringIO()
>>> with abjad.RedirectedStreams(stdout=string_io):
...     print("hello, world!")
...
>>> result = string_io.getvalue()
>>> string_io.close()
>>> print(result)
hello, world!

Redirected streams context manager is immutable.


Attributes Summary

__enter__ Enters redirected streams context manager.
__exit__ Exits redirected streams context manager.
__repr__ Gets interpreter representation of context manager.
stderr Gets stderr of context manager.
stdout Gets stdout of context manager.

Special methods

__enter__()

Enters redirected streams context manager.

Returns none.

__exit__(exc_type, exc_value, traceback)

Exits redirected streams context manager.

Returns none.

(AbjadObject).__format__(format_specification='')

Formats Abjad object.

Set format_specification to '' or 'storage'. Interprets '' equal to 'storage'.

Returns string.

__repr__()

Gets interpreter representation of context manager.

>>> context_manager = abjad.RedirectedStreams()
>>> context_manager
<RedirectedStreams()>

Returns string.


Read-only properties

stderr

Gets stderr of context manager.

stdout

Gets stdout of context manager.