Collecting towncrier==17.8.0
  1 location(s) to search for versions of towncrier:
  * https://pypi.python.org/simple/towncrier/
  Getting page https://pypi.python.org/simple/towncrier/
  Analyzing links from page https://pypi.python.org/simple/towncrier/
    Found link https://pypi.python.org/packages/05/77/1765a6f1a73b93c61ceeb1c5e63f065ebe60d6487161df07d805a4b4f448/towncrier-17.1.0-py2.py3-none-any.whl#md5=2bb804fa06b4964db6d5c6f62be75321 (from https://pypi.python.org/simple/towncrier/), version: 17.1.0
    Found link https://pypi.python.org/packages/07/54/66d0de4311ead3c5514bf9dafd25cb17816292532d4f486036a807f9c0c8/towncrier-17.8.0.tar.gz#md5=f210d1f0de65426dd5812fddae944658 (from https://pypi.python.org/simple/towncrier/), version: 17.8.0
    Found link https://pypi.python.org/packages/0c/4a/5e0bb4c08bea73d348f57c4e0d57f9066b1e2e1fbee447e801966bdb6ec2/towncrier-16.0.0-py3-none-any.whl#md5=d0bf220a0877c8f3a5b9f2795990f710 (from https://pypi.python.org/simple/towncrier/), version: 16.0.0
    Found link https://pypi.python.org/packages/10/d6/7efa0e6149899b39d8f5b5a04193ebd65f980be0bfbc08e82f72bc700afa/towncrier-17.4.0-py2.py3-none-any.whl#md5=7d537b40156b1a788994e4b9c08c8737 (from https://pypi.python.org/simple/towncrier/), version: 17.4.0
    Found link https://pypi.python.org/packages/28/d6/3915c262f25bf1f7fbdb04c28c2ba74b01555f34af7b10f38ed3b229dfc8/towncrier-16.1.0-py2.py3-none-any.whl#md5=94e02a754a97c24aa37d293286b7a1b3 (from https://pypi.python.org/simple/towncrier/), version: 16.1.0
    Found link https://pypi.python.org/packages/2c/af/9062bcc00de8084e8511a356acb8f12ab0d47994f1f8c79ed2e0bdbb4fe0/towncrier-17.1.0.tar.gz#md5=d50af3edcfb8cb1106522a089333fea4 (from https://pypi.python.org/simple/towncrier/), version: 17.1.0
    Found link https://pypi.python.org/packages/30/8c/6f322c5a8b4dad2bbc2f9499ceafd3ad3c98e401c9e6577db49ab042cd3e/towncrier-15.1.0-py3-none-any.whl#md5=15a02d54980d54d8b60de8accbf2bd18 (from https://pypi.python.org/simple/towncrier/), version: 15.1.0
    Found link https://pypi.python.org/packages/41/81/5c6877282a1bfe5e296e986e03eae69c96606cc973e19263583295ff7443/towncrier-16.0.0.tar.gz#md5=4b07878c737aa2d00317948e12b40243 (from https://pypi.python.org/simple/towncrier/), version: 16.0.0
    Found link https://pypi.python.org/packages/70/0d/6bd2ad0820a9cf9e2ec3da4330a0ccb6737d01055246e3f3fe67852b63f3/towncrier-17.4.0.tar.gz#md5=319b625b8d5c533c9e99dd56db1b12a7 (from https://pypi.python.org/simple/towncrier/), version: 17.4.0
    Found link https://pypi.python.org/packages/80/1c/0790764a34d115708a57cfeb0cd2c4fd967d106d327f4c2cae65df5f2e34/towncrier-17.8.0-py2.py3-none-any.whl#md5=078e9a46a44d44c737e5e9abacee512c (from https://pypi.python.org/simple/towncrier/), version: 17.8.0
    Found link https://pypi.python.org/packages/85/ec/c9478302dc164c01c539e0131c48016c67980b853708f9da3bc3cbfdcaaa/towncrier-16.1.0.tar.gz#md5=2285fe4115b01efa128c801c12cab93c (from https://pypi.python.org/simple/towncrier/), version: 16.1.0
    Found link https://pypi.python.org/packages/b3/ff/bfa0a2bf0ef081c85de76bd4fe274be908e20d7e7e6d6a3a6f5f15bcb3eb/towncrier-16.12.0.tar.gz#md5=ee21371f3957fce22ed39abe521b5520 (from https://pypi.python.org/simple/towncrier/), version: 16.12.0
    Found link https://pypi.python.org/packages/b5/34/76e2d2490240cafa0e6a512234141b24b09abbbdc1d9566e99f991104a51/towncrier-15.0.0-py3-none-any.whl#md5=64390f83c2a460f3eaa978f39fd955c6 (from https://pypi.python.org/simple/towncrier/), version: 15.0.0
    Found link https://pypi.python.org/packages/f9/0d/e17ddc9c046b2bca79c96e53e850d703bec302e9fb9ec21470b14574b543/towncrier-15.1.0.tar.gz#md5=da77a01f3bead54f54389b5c06548785 (from https://pypi.python.org/simple/towncrier/), version: 15.1.0
    Found link https://pypi.python.org/packages/fe/34/2a4f2dc9f76b319a9e1583e13faa48b7e98477630d944081c384469c2d9f/towncrier-16.12.0-py2.py3-none-any.whl#md5=79f33082c187aa4e934753f5d49fcff0 (from https://pypi.python.org/simple/towncrier/), version: 16.12.0
  Using version 17.8.0 (newest of versions: 17.8.0)
  Downloading towncrier-17.8.0-py2.py3-none-any.whl
  Downloading from URL https://pypi.python.org/packages/80/1c/0790764a34d115708a57cfeb0cd2c4fd967d106d327f4c2cae65df5f2e34/towncrier-17.8.0-py2.py3-none-any.whl#md5=078e9a46a44d44c737e5e9abacee512c (from https://pypi.python.org/simple/towncrier/)
  Saved /tmp/tmpx1t1xw95/towncrier-17.8.0-py2.py3-none-any.whl
Skipping towncrier, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-2n3qg7ca/towncrier