Collecting class-registry==2.1.1
  1 location(s) to search for versions of class-registry:
  * https://pypi.python.org/simple/class-registry/
  Getting page https://pypi.python.org/simple/class-registry/
  Analyzing links from page https://pypi.python.org/simple/class-registry/
    Found link https://pypi.python.org/packages/05/ca/3723cb3a74a23fe77c88f29fe06fed202acc398763d36b6721dc2883bbd4/class_registry-2.1.2-py2.py3-none-any.whl#md5=4f24faef3adafb5572a8ea762ba629f5 (from https://pypi.python.org/simple/class-registry/), version: 2.1.2
    Found link https://pypi.python.org/packages/0c/99/329b5e7706f18b99b692d8d431676c459f6aca56029c7230e2adcb97d780/class_registry-2.0.0-py3-none-any.whl#md5=6d61e162586b62229f35a46a78d75607 (from https://pypi.python.org/simple/class-registry/), version: 2.0.0
    Found link https://pypi.python.org/packages/32/6f/aca81a73c639395bec4be2386132cdcd821b3a6474ce5a448a866f4a3f4c/class-registry-2.0.0.tar.gz#md5=f3a6d7d80e4d507916f57785e4cfb2c2 (from https://pypi.python.org/simple/class-registry/), version: 2.0.0
    Found link https://pypi.python.org/packages/59/7a/faeae485777a0673cb878416bb14ae6fc00fb1462cbfac5f0eb057b66946/class_registry-2.1.0-py2.py3-none-any.whl#md5=48faf950d1f0e9a59722ddb686d7941b (from https://pypi.python.org/simple/class-registry/), version: 2.1.0
    Skipping link https://pypi.python.org/packages/72/4b/0c0da45816da89f949bddc4b33e71e25bbcee54748739c44a94e7b10f87b/class_registry-2.0.1-py2-none-any.whl#md5=7992887947e3543472f2dd43b35e270d (from https://pypi.python.org/simple/class-registry/); it is not compatible with this Python
    Found link https://pypi.python.org/packages/77/12/9588e71126438abdf10d3cec4ff4257eedaf6bc9b9637ab001d138d74085/class-registry-2.1.2.tar.gz#md5=6e992ec6201cae721afad6a4416a0586 (from https://pypi.python.org/simple/class-registry/), version: 2.1.2
    Found link https://pypi.python.org/packages/7b/1f/21ea67cdd5b7b16fbd5f24f4f698982730edbf387bbf2bdddfa6fb8ce814/class_registry-2.1.1-py2.py3-none-any.whl#md5=80965765d874ff0cd015018da9d81fdc (from https://pypi.python.org/simple/class-registry/), version: 2.1.1
    Found link https://pypi.python.org/packages/89/f3/d61d66d0a560b6633673c4c2852244ec16122cf7c2406e1fb2346370eda0/class-registry-2.1.1.tar.gz#md5=24c5204f9fc6c09d633bb583a93c1ae2 (from https://pypi.python.org/simple/class-registry/), version: 2.1.1
    Found link https://pypi.python.org/packages/a4/e8/7783889fb86de0c9cad701987ba9935a79eee5909835f0afaeeba2f8f45a/class-registry-2.0.1.tar.gz#md5=2bf100f6d017a15c09763f2fca12723f (from https://pypi.python.org/simple/class-registry/), version: 2.0.1
    Skipping link https://pypi.python.org/packages/b5/80/eee87536ee038b7fe7ffd031ee92b55889997555a96f15d807bf4188d451/class_registry-2.0.0-py2-none-any.whl#md5=422291fe168d27fa4fec54b2f9f09466 (from https://pypi.python.org/simple/class-registry/); it is not compatible with this Python
    Found link https://pypi.python.org/packages/b5/b9/16ec0633b043f41911b003613a53fe93c823f634b89bfb7493113544bb62/class_registry-2.0.1-py3-none-any.whl#md5=66320cb6df8e91507ae61e02e6257ee0 (from https://pypi.python.org/simple/class-registry/), version: 2.0.1
    Found link https://pypi.python.org/packages/bd/cf/a7be9ab0f7042852d29c4bfb90a14f56f88addad2489e23c8a57936da878/class_registry-2.0.2-py3-none-any.whl#md5=ee7344b75e2d6aaad9fb111a89d192bd (from https://pypi.python.org/simple/class-registry/), version: 2.0.2
    Found link https://pypi.python.org/packages/ca/7e/04794a859e0da5cd4a394f6ec4492d1446dc36222c6ea8c18b739387c499/class-registry-2.0.2.tar.gz#md5=e5752724c573f597d6b2ec4ad8d71827 (from https://pypi.python.org/simple/class-registry/), version: 2.0.2
    Found link https://pypi.python.org/packages/eb/8e/2e378e2c268afddf00ce8c1f1af7cfc490101554c925ba851d81ec7fb49b/class-registry-2.1.0.tar.gz#md5=aab361d6b4cab68d4f091049a790bddb (from https://pypi.python.org/simple/class-registry/), version: 2.1.0
    Skipping link https://pypi.python.org/packages/ef/54/23021e66d68856b28e51193d7a559c2c6615280a92c9d2da73a109181f03/class_registry-2.0.2-py2-none-any.whl#md5=0ccee29676851a2762f66642fa949d12 (from https://pypi.python.org/simple/class-registry/); it is not compatible with this Python
  Using version 2.1.1 (newest of versions: 2.1.1)
  Downloading class_registry-2.1.1-py2.py3-none-any.whl
  Downloading from URL https://pypi.python.org/packages/7b/1f/21ea67cdd5b7b16fbd5f24f4f698982730edbf387bbf2bdddfa6fb8ce814/class_registry-2.1.1-py2.py3-none-any.whl#md5=80965765d874ff0cd015018da9d81fdc (from https://pypi.python.org/simple/class-registry/)
  Saved /tmp/tmp3tlhj84a/class_registry-2.1.1-py2.py3-none-any.whl
Skipping class-registry, due to already being wheel.
Cleaning up...
  Removing source in /tmp/pip-build-q3ysej_y/class-registry