You probably rather want to check out the installation instructions how to install via pip.
The source distribution is provided as gzipped tar ball:
Copyright and License
© 1998-2021 by Michael Ströder
web2ldap 1.3.0 and newer is distributed under the following license:
Licensed under the Apache License, Version 2.0 (the "License"); you may not use files and content provided on this web site except in compliance with the License. You may obtain a copy of the License at https://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.