The `CaptureFixture` in Python `_pytest` module provides a convenient way to capture and manipulate the standard output and error streams during testing. It allows users to capture and analyze the output generated by test functions or any other code being tested. This fixture can be used in pytest tests by simply adding it as an argument to the test function. It provides methods to capture output, enable and disable capturing, and even customize the capturing behavior. This helps in effectively testing and analyzing the output of test functions, ensuring the expected behavior of the code under test.
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