annotate hgext/fsmonitor/pywatchman/compat.py @ 48875:6000f5b25c9b

py2: remove simple from __future__ statements

These were needed for Python 2 support. Now that our linter no longer
mandates these, we can start deleting them.

Differential Revision: https://phab.mercurial-scm.org/D12254

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#
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#
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#    endorse or promote products derived from this software without specific
#    prior written permission.
#
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# no unicode literals

import sys


"""Compatibility module across Python 2 and 3."""


PYTHON2 = sys.version_info < (3, 0)
PYTHON3 = sys.version_info >= (3, 0)

# This is adapted from https://bitbucket.org/gutworth/six, and used under the
# MIT license. See LICENSE for a full copyright notice.
if PYTHON3:

    def reraise(tp, value, tb=None):
        try:
            if value is None:
                value = tp()
            if value.__traceback__ is not tb:
                raise value.with_traceback(tb)
            raise value
        finally:
            value = None
            tb = None


else:
    exec(
        """
def reraise(tp, value, tb=None):
    try:
        raise tp, value, tb
    finally:
        tb = None
""".strip()
    )

if PYTHON3:
    UNICODE = str
else:
    UNICODE = unicode  # noqa: F821 We handled versioning above