require_version¶

paddle.utils. require_version ( min_version, max_version=None ) [source]

Check if the installed version of PaddlePaddle is in [min_version, max_version], if the installed version is lower than min_version or higher than max_version, an exception will be thrown, NO returns if the installed version is satisfied.

Parameters

• min_version (str) – the minimum version required (like ‘1.4.0’).

• max_version (str, optional) – the max version required (like ‘1.6.0’), default is None, meaning any version equal or higher than min_version is acceptable.

Returns

None.

Raises

• TypeError – if the type of min_version is not str.

• TypeError – if the type of max_version is not str or type(None).

• ValueError – if the value of min_version is not in version format.

• ValueError – if the value of max_version is not in version format or None.

• Exception – if the installed version is lower than min_version or higher than max_version.

Examples

import paddle.fluid as fluid

# any version >= 0.1.0 is acceptable.
fluid.require_version('0.1.0')

# if 0.1.0 <= version <= 10.0.0, it is acceptable.
fluid.require_version(min_version='0.1.0', max_version='10.0.0')