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from .langhelpers import ( # noqa
asbool, rev_id, to_tuple, to_list, memoized_property,
immutabledict, _with_legacy_names, Dispatcher, ModuleClsProxy)
from .messaging import ( # noqa
write_outstream, status, err, obfuscate_url_pw, warn, msg, format_as_comma)
from .pyfiles import ( # noqa
template_to_file, coerce_resource_to_filename, simple_pyc_file_from_path,
pyc_file_from_path, load_python_file)
from .sqla_compat import ( # noqa
sqla_07, sqla_079, sqla_08, sqla_083, sqla_084, sqla_09, sqla_092,
sqla_094, sqla_094, sqla_099, sqla_100, sqla_105)
from .os_helpers import ( # noqa
open_in_editor)
class CommandError(Exception):
pass
if not sqla_07:
raise CommandError(
"SQLAlchemy 0.7.3 or greater is required. ")
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