20 lines
572 B
Python
20 lines
572 B
Python
try:
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from sqlalchemy import MetaData, asc, create_engine, desc
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from sqlalchemy.engine import Engine
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from sqlalchemy.exc import IntegrityError, OperationalError
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except ImportError:
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class FakeError(Exception):
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pass
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class FakeType:
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def __init__(self, *args, **kwargs):
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raise Exception("SQLAlchemy is not installed")
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def create_engine(*args, **kwargs):
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raise Exception("SQLAlchemy is not installed")
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MetaData = Engine = FakeType
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IntegrityError = OperationalError = FakeError
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asc = desc = lambda a: a
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