setup.py

38720:d12415b8f833

# backdoor to enable working on Python 3.
if sys.version_info[0] != 2:
    badpython = True

    # Allow Python 3 from source checkouts.
    if os.path.isdir('.hg'):
        badpython = False

    if badpython:
        error = """
Mercurial only supports Python 2.7.

    oldpolicy = os.environ.get('HGMODULEPOLICY', None)
    os.environ['HGMODULEPOLICY'] = 'py'
    from mercurial import __version__
    version = __version__.version
except ImportError:
    version = 'unknown'
finally:
    if oldpolicy is None:
        del os.environ['HGMODULEPOLICY']
    else:
        os.environ['HGMODULEPOLICY'] = oldpolicy

38721:dbbe45ae5ad1

# backdoor to enable working on Python 3.
if sys.version_info[0] != 2:
    badpython = True

    # Allow Python 3 from source checkouts.
    if os.path.isdir('.hg') or 'HGPYTHON3' in os.environ:
        badpython = False

    if badpython:
        error = """
Mercurial only supports Python 2.7.

    oldpolicy = os.environ.get('HGMODULEPOLICY', None)
    os.environ['HGMODULEPOLICY'] = 'py'
    from mercurial import __version__
    version = __version__.version
except ImportError:
    version = b'unknown'
finally:
    if oldpolicy is None:
        del os.environ['HGMODULEPOLICY']
    else:
        os.environ['HGMODULEPOLICY'] = oldpolicy