We don't depend on this directly---it is a subdependency that we depend on via other packages. In normal usage of requirements.txt this line would not cause issues. However, this line causes issues when used with a later Twisted version (e.g. 18.7) due to the sed in .travis.yml. We should probably remove this line unless there is a specific reason to keep it that I have missed (see #364).
We don't depend on this directly---it is a subdependency that we depend on via other packages. In normal usage of requirements.txt this line would not cause issues. However, this line causes issues when used with a later Twisted version (e.g. 18.7) due to the sed in .travis.yml. We should probably remove this line unless there is a specific reason to keep it that I have missed (see #364).