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# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

# http://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

"""A small helper to ensure that we are working with full versions."""

def full_version(*, version, minor_mapping):

"""Return a full version.

Args:

version: {type}`str` the version in `X.Y` or `X.Y.Z` format.

minor_mapping: {type}`dict[str, str]` mapping between `X.Y` to `X.Y.Z` format.

Returns:

a full version given the version string. If the string is already a

major version then we return it as is.

"""

if version in minor_mapping:

return minor_mapping[version]

parts = version.split(".")

if len(parts) == 3:

return version

elif len(parts) == 2:

fail(

"Unknown Python version '{}', available values are: {}".format(

version,

",".join(minor_mapping.keys()),

)

else:

fail("Unknown version format: '{}'".format(version))