conflicting cachetools versions

[dgaedcke]

this project depends upon:

• google-api-core
  but that requires :
• google-auth<2.0dev,>=0.4.0

however, google-endpoints requires newer cachetools

so with requirements.txt like this:

• google-endpoints==4.8.0
• firebase-admin

I'm getting this error:
google-auth 1.6.3 has requirement cachetools>=2.0.0, but you'll have cachetools 1.1.6 which is incompatible.

Collecting protobuf>=3.4.0 (from google-api-core[grpc]<2.0.0dev,>=1.7.0; platform_python_implementation != "PyPy"->firebase-admin->-r requirements.txt (line 16))
Using cached https://files.pythonhosted.org/packages/5e/4b/641b4540ff7ae065c1598c73aacf9cba5d59720e14d39a9d260d50896317/protobuf-3.7.0-cp27-cp27m-macosx_10_9_intel.macosx_10_9_x86_64.macosx_10_10_intel.macosx_10_10_x86_64.whl
Collecting google-auth<2.0dev,>=0.4.0 (from google-api-core[grpc]<2.0.0dev,>=1.7.0; platform_python_implementation != "PyPy"->firebase-admin->-r requirements.txt (line 16))

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[hiranya911]

Please report at google-endpoints or at google-endpoints-api-management so they can upgrade their dependencies:

https://github.com/cloudendpoints/endpoints-management-python/blob/master/setup.py

Collecting cachetools<2,>=1.0.0 (from google-endpoints-api-management>=1.10.0->google-endpoints==4.8.0->-r requirements.txt (line 1))
  Downloading https://files.pythonhosted.org/packages/2a/d8/a3a54933668a0cda92d67c07747be1292555c8ccc28d61e8edf519ea920f/cachetools-1.1.6-py2.py3-none-any.whl

google-auth depends on v2 of cachetools. It's google-endpoints that is behind.

In either case, this cannot be fixed in this repo. Neither google-endpoints nor cachetools are our direct dependencies.