2019-06-26T23:19:51 Created temporary directory: /tmp/pip-ephem-wheel-cache-vt8unn78
2019-06-26T23:19:51 Created temporary directory: /tmp/pip-req-tracker-lkr5ai4f
2019-06-26T23:19:51 Created requirements tracker '/tmp/pip-req-tracker-lkr5ai4f'
2019-06-26T23:19:51 Created temporary directory: /tmp/pip-wheel-wskn2p0b
2019-06-26T23:19:51 Collecting ConcurrentLogHandler==0.7.4
2019-06-26T23:19:51   1 location(s) to search for versions of ConcurrentLogHandler:
2019-06-26T23:19:51   * https://pypi.org/simple/concurrentloghandler/
2019-06-26T23:19:51   Getting page https://pypi.org/simple/concurrentloghandler/
2019-06-26T23:19:51   Analyzing links from page https://pypi.org/simple/concurrentloghandler/
2019-06-26T23:19:51     Found link https://files.pythonhosted.org/packages/f5/85/b558d3f8eb68d540eb52f145f0a7c2155fb19da30e833a4369a80511e254/ConcurrentLogHandler-0.7.2.tar.gz#sha256=9ced6344ece750ae6e8112f01e08e3621956d3fee235470defdd87d1dcb2aca7 (from https://pypi.org/simple/concurrentloghandler/), version: 0.7.2
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/09/21/49e4b532f16d153100143d5d72d71733e03b8ec8c6d936b6e16211660647/ConcurrentLogHandler-0.7.3-py2.4.egg#sha256=c400b7d914038818a38f605d6c42b6b738b8dc5cea8cb2fadebf38a7aa55d451 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/44/bc/7c6f29f14af29530fa957787e1d2c24204dd9a286ce6c7e457c9550adfb2/ConcurrentLogHandler-0.7.3-py2.5.egg#sha256=249359ea9cf44b5587b2a3fffa7b180ad5dbbf81d7d96682094600ac758bc32f (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Found link https://files.pythonhosted.org/packages/23/a2/32b33dd0422eee473aa55e21762fa4c2774ac7a2f31154884e2df5791b0f/ConcurrentLogHandler-0.7.3.tar.gz#sha256=45d94886a92cf6c49259a6bb6fe767255431960aaf3455c098aaebe35dd85fff (from https://pypi.org/simple/concurrentloghandler/), version: 0.7.3
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/34/2b/dae97d8643bb57cf43b3a534f5d54ac21fe67cabd1358716c781f3fdb547/ConcurrentLogHandler-0.7.4-py2.4.egg#sha256=957fffc96fc50ed7533ad530d8d8f3268a02035f80885f69324baa5ab6778f8e (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/3d/0d/b1828f90e52488746fb5bef15d7d49cb293c2768c0a1c11d8703690ae470/ConcurrentLogHandler-0.7.4-py2.5.egg#sha256=489fd808e048d639c939576c44097576731e83da96b49696c9b6ab0e799d71af (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Found link https://files.pythonhosted.org/packages/9d/2d/48d53a7c1d69da75903c5bcb7e3a216f7b8ade73557756c748091b6abb3e/ConcurrentLogHandler-0.7.4.tar.gz#sha256=d17bebae5d14daecfcdda84129352f2e331c9fae6910e6d710a936600905f9f6 (from https://pypi.org/simple/concurrentloghandler/), version: 0.7.4
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/93/fa/bfc6550e53bd1c8cc79401b9c42f01bbfc2d4bf36addc96843b988b650a9/ConcurrentLogHandler-0.8.0-py2.4.egg#sha256=d219e35e752afda8bc834ad69c367e40dede7cb0f36481eab84fc51b883b0350 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/1a/84/f2d091753b2c18f95bf080c4f11676229e30862391149b177b332d4bee83/ConcurrentLogHandler-0.8.0-py2.5.egg#sha256=e27b438451005f51acc02b3fcf24862752b2f95fbdc4761ff1d41e4a7649343e (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Found link https://files.pythonhosted.org/packages/e0/80/1d518288461e1fd0a8df32aaf29636bf8662937be17c6fe2681faf4769ab/ConcurrentLogHandler-0.8.0.tar.gz#sha256=afd36f369cf7d788f87149e1546f25e0707c900b431a54c99ff88a201dd54cdc (from https://pypi.org/simple/concurrentloghandler/), version: 0.8.0
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/da/3a/c4b2ed018de0cb009637fc634aca77a53073ca83b7d36b84113f3bab0964/ConcurrentLogHandler-0.8.1-py2.4.egg#sha256=1c8f2bff98a6881304e6505f40edbcf1e7932cbade75551323fa7b5ba65d1b15 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/89/a4/846d03b3a8d4c5a084ad66a39e6789f7f995c29890ef5475491312b40920/ConcurrentLogHandler-0.8.1-py2.5.egg#sha256=9edca190730c8b3e22fc0a1297c6c897787ec7dc7fee957560a2557bd7d98121 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Found link https://files.pythonhosted.org/packages/e9/04/dfdb1c6dff85fd54ae963a08d1ec963fb7ec95eca54a197824cf78603183/ConcurrentLogHandler-0.8.1.tar.gz#sha256=88d57f7762fd9a9c220d44999ee441cff459810d36b0d5e1d8180318a2ab85a7 (from https://pypi.org/simple/concurrentloghandler/), version: 0.8.1
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/06/3e/fb41cf3323ca434dc8a850becb85ba49d101a5731430d313f08c1b82e855/ConcurrentLogHandler-0.8.2-py2.4.egg#sha256=b1b534961b89a6e5a75efab8b73671efd21d1ba73430ebfab59c29e7b692bfc3 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/02/c4/083a7cacad94c2b73cead296e6e0c27d76b3408fda174b17a7d295ebc7c3/ConcurrentLogHandler-0.8.2-py2.5.egg#sha256=1a47b8fd9ab32293937b84661417a25bbd2b8dbb06303ccc0a39ea7fd2c3bf50 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Found link https://files.pythonhosted.org/packages/3e/4f/765035c72150e2987a14d7f8de294bf22ae0670df5dfc73a3c986e78fb57/ConcurrentLogHandler-0.8.2.tar.gz#sha256=ced2516783d670f2ec075afc755c6af6bb87e3a50276d68fa2cf6690d260d08f (from https://pypi.org/simple/concurrentloghandler/), version: 0.8.2
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/8b/4e/45c1940114e76c6702c66302dc641d735330e45fa3e207e4ab3ed9804bdd/ConcurrentLogHandler-0.8.3-py2.4.egg#sha256=2178bc9429481eec8b72f3aeff9e2db27a58aef43f2a099d86f2d971891ddccf (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/2f/18/2715b28d271ba32f0f362a293cb54da64c23a7a02063e7f6ab4c5960b15c/ConcurrentLogHandler-0.8.3-py2.5.egg#sha256=198c631eaeffda25802d7ff000face0058b58b9bd9542e9999be4864d182908f (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/d5/9f/d68b3ddb607b0a4aa41de3132002bcd0a073eb972ce57def5dbd69aa67aa/ConcurrentLogHandler-0.8.3-py2.6.egg#sha256=232167a7b7ef114892a9b731b04b79e25d82d0cbe36f10f463fe8c2fb165f3b7 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Found link https://files.pythonhosted.org/packages/8a/0b/db10b379371639823a17ced3ef9f3b7c27f7e4b9627196040dd3303af564/ConcurrentLogHandler-0.8.3.tar.gz#sha256=e34f5f46680653c1846282a8eb2c9d657ccf52cbdbcf223df0d3a675fec616d0 (from https://pypi.org/simple/concurrentloghandler/), version: 0.8.3
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/41/b3/54730c5a9c3729e9ef49262c1b68dc6605db321e72adb9785e9fa3ec9293/ConcurrentLogHandler-0.8.4-py2.5.egg#sha256=0b595f5da988fb66deaaa6585358d0271f3acac8d5e495ab2391d0ba6fa662c3 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/7d/38/2081b16b09933075d9d4a776039fc8a26af4fbd19cd67095c8cfb43734d2/ConcurrentLogHandler-0.8.4-py2.6.egg#sha256=521885d8fab8009531c579d7138dce0dd1e417e49e9e3c32f6786128bc97f09e (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Found link https://files.pythonhosted.org/packages/bf/ce/8ef66d55588a000e757005dd66973a1d21b55c26167a14b537171bfcfb01/ConcurrentLogHandler-0.8.4.tar.gz#sha256=de68d7f27b95820de50283195f79851fa50c65eba77eb99bc4811eae12534fdc (from https://pypi.org/simple/concurrentloghandler/), version: 0.8.4
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/77/ef/e6b667971ff35c477195f03d70a1f06318d0486ad47c30f146207617e004/ConcurrentLogHandler-0.8.5-py2.6.egg#sha256=edf79b4cc5891a9b4e38e3d1450403a8c88a6c2ed297f3f3bd192ab6c1b49b30 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/ab/c4/4d85cd7e3b17ecec5b3d1295ee94d4f5604b46397e05c2fe9e004d1168a6/ConcurrentLogHandler-0.8.5-py2.7.egg#sha256=fe6c322b084396fb9ec8186b10cc0636da3cf3407f5cc81bad87ae707851e554 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/e6/9a/4d3fcc8b704bd2fb6d3f9ee4d55a859bac8a92ec994e7917a250235ddec6/ConcurrentLogHandler-0.8.5-py3.2.egg#sha256=4a5a6fd9a645a0b657933799a39e29db39a1e240d578cb749d0c779723067671 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Found link https://files.pythonhosted.org/packages/6c/fe/b8c2b7d4451dd974e67eaae18f48ec120ace35c9c29fdd1b1f8ae9907f3f/ConcurrentLogHandler-0.8.5.tar.gz#sha256=7a9b7d501758d601bbdb5f427008d5666147cf7b5ab2f9e3097cb5e6982fe256 (from https://pypi.org/simple/concurrentloghandler/), version: 0.8.5
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/e1/91/58d3b1ba6f6645a40f26bffcb5bc65412496ffc36b090de34a222640f8cb/ConcurrentLogHandler-0.8.6-py2.6.egg#sha256=74d881b3fec205eb3fe114e27edf19dce2f90677004b47c95f466f7417997088 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/18/13/f4da81d17c63670b888a488785d30702c78b9536f37cf6860aefb09032ef/ConcurrentLogHandler-0.8.6-py2.7.egg#sha256=9303ede36bf06840c5edbfc984f7564abb4e5f03dbe866776794f1d74e02e6d7 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/18/8a/64c13491be599cfb53ca5686db29d8e548c70db6d2d9528cd43f63cd8894/ConcurrentLogHandler-0.8.6-py3.2.egg#sha256=6eba3e2db93453abfd56d375a7f60ee6ae51100f40b13bedf98cfbd4a5f85367 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Found link https://files.pythonhosted.org/packages/55/56/8e5ba678efc654cfef4625d0d5cbb70192691413f9d4955d6399a15d7a1a/ConcurrentLogHandler-0.8.6.tar.gz#sha256=89aeb4ff37dde1836b405abbfbab97f9080953d08e7bdc5ab4d397b7e58c559a (from https://pypi.org/simple/concurrentloghandler/), version: 0.8.6
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/4f/d8/ed0613959a183c054f2442bfc1b39f9d045c7e6b17687559082f43bfa82e/ConcurrentLogHandler-0.8.7-py2.6.egg#sha256=59d792f6361db71478e9217f8fe80094b2ecc0e678177dd613a8169403dae2fb (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/2a/51/b29e8d0852e833c00072b9caa0807303def7a155dd10aa771fe4d2e92e39/ConcurrentLogHandler-0.8.7-py2.7.egg#sha256=f292bf2e4bee693d6be550961fd9c1beee9dcf58c9bc91d0d74e42c291d7cd30 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/72/c1/fcefd3a8d1f2e3aaef66e6665ed8de0db230f9caf72c7b85f2dda922dd5a/ConcurrentLogHandler-0.8.7-py3.2.egg#sha256=d3e95f7032a2bcf3f34b738661db636b3c404704214b096659f3554e09a48f92 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Found link https://files.pythonhosted.org/packages/01/73/0ca337c367b21645625c611b4610454f746cfcbd555fa07f2924fe9dfae2/ConcurrentLogHandler-0.8.7.tar.gz#sha256=0c55ecc5b3cec3fd5fc3459a141b33bcc25aef3adfe37c218e706cf5fe205ef2 (from https://pypi.org/simple/concurrentloghandler/), version: 0.8.7
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/86/17/881aa88061b621c3aec04e3f9a80400a2cf18f5c81dcc64561d7f085cc81/ConcurrentLogHandler-0.9.0-py2.6.egg#sha256=fb499c4b63eee5d1fd3d9cf85d62bb55153cfdcb6d329408c84c6abbfaef6e36 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/ae/b6/aac3e0881293d5d2905b1b96877f1489158c023560f7c3e02f2665700caa/ConcurrentLogHandler-0.9.0-py2.7.egg#sha256=c87b2379bb140def106968b1e484e2b55f5c04d4c3affccc2bf2611ebd6d591b (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/a5/26/0b32572553dffd1e42d585814082e2dab071f26e28ddec71ab0d9097dc05/ConcurrentLogHandler-0.9.0-py3.2.egg#sha256=822da5f798db85bffc9c6dd53dd29811aa734c5142184443a4b27745e7542040 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Found link https://files.pythonhosted.org/packages/de/5a/235bebd6dd07917798fa597c8af9ae95a17de2ecd2f017d05872a8ba8465/ConcurrentLogHandler-0.9.0.tar.gz#sha256=1905f28fc3f38f06138d2e22b46bc002b595531eccec84311578f38327f9d130 (from https://pypi.org/simple/concurrentloghandler/), version: 0.9.0
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/98/33/b5965e6476bb4d1e0c2d07214a7d524dbcf5b56cfd136896afac6b620d83/ConcurrentLogHandler-0.9.1-py2.6.egg#sha256=5d199eecc23751ab1f705826660f733c1090f62789f3e3c44296e706fc75b547 (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/80/df/ac2a81bb6cdf54737708f45f226ed914a9275dbcc4e2cd01010312aa6e86/ConcurrentLogHandler-0.9.1-py2.7.egg#sha256=aa608aa0ce32d86d2061dec91cd58a2a367f97110851529d2aa6ebf96d9dcd4d (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Skipping link https://files.pythonhosted.org/packages/e3/f6/75b3cc0fea08fb09d8ffa9901b716c164ebd55c13e301a08e09bd8d5ba81/ConcurrentLogHandler-0.9.1-py3.2.egg#sha256=4ccae08b7f9b3257de35f847e2de8629c00c2075f8ce66db8ed06d7657e2eeae (from https://pypi.org/simple/concurrentloghandler/); unsupported archive format: .egg
2019-06-26T23:19:51     Found link https://files.pythonhosted.org/packages/fd/e5/0dc4f256bcc6484d454006b02f33263b20f762a433741b29d53875e0d763/ConcurrentLogHandler-0.9.1.tar.gz#sha256=8225a590fd4194c413fa26675bde5f6b80ad79e4182d5876ba3e264f77755918 (from https://pypi.org/simple/concurrentloghandler/), version: 0.9.1
2019-06-26T23:19:51   Using version 0.7.4 (newest of versions: 0.7.4)
2019-06-26T23:19:51   Created temporary directory: /tmp/pip-unpack-t56c2ds0
2019-06-26T23:19:51   Downloading https://files.pythonhosted.org/packages/9d/2d/48d53a7c1d69da75903c5bcb7e3a216f7b8ade73557756c748091b6abb3e/ConcurrentLogHandler-0.7.4.tar.gz
2019-06-26T23:19:51   Downloading from URL https://files.pythonhosted.org/packages/9d/2d/48d53a7c1d69da75903c5bcb7e3a216f7b8ade73557756c748091b6abb3e/ConcurrentLogHandler-0.7.4.tar.gz#sha256=d17bebae5d14daecfcdda84129352f2e331c9fae6910e6d710a936600905f9f6 (from https://pypi.org/simple/concurrentloghandler/)
2019-06-26T23:19:51   Added ConcurrentLogHandler==0.7.4 from https://files.pythonhosted.org/packages/9d/2d/48d53a7c1d69da75903c5bcb7e3a216f7b8ade73557756c748091b6abb3e/ConcurrentLogHandler-0.7.4.tar.gz#sha256=d17bebae5d14daecfcdda84129352f2e331c9fae6910e6d710a936600905f9f6 to build tracker '/tmp/pip-req-tracker-lkr5ai4f'
2019-06-26T23:19:51     Running setup.py (path:/tmp/pip-wheel-wskn2p0b/ConcurrentLogHandler/setup.py) egg_info for package ConcurrentLogHandler
2019-06-26T23:19:51     Running command python setup.py egg_info
2019-06-26T23:19:53     Traceback (most recent call last):
2019-06-26T23:19:53       File "<string>", line 1, in <module>
2019-06-26T23:19:53       File "/tmp/pip-wheel-wskn2p0b/ConcurrentLogHandler/setup.py", line 62, in <module>
2019-06-26T23:19:53         from ez_setup import use_setuptools
2019-06-26T23:19:53       File "/tmp/pip-wheel-wskn2p0b/ConcurrentLogHandler/ez_setup.py", line 94
2019-06-26T23:19:53         except pkg_resources.VersionConflict, e:
2019-06-26T23:19:53                                             ^
2019-06-26T23:19:53     SyntaxError: invalid syntax
2019-06-26T23:19:53 Cleaning up...
2019-06-26T23:19:53   Removing source in /tmp/pip-wheel-wskn2p0b/ConcurrentLogHandler
2019-06-26T23:19:53 Removed ConcurrentLogHandler==0.7.4 from https://files.pythonhosted.org/packages/9d/2d/48d53a7c1d69da75903c5bcb7e3a216f7b8ade73557756c748091b6abb3e/ConcurrentLogHandler-0.7.4.tar.gz#sha256=d17bebae5d14daecfcdda84129352f2e331c9fae6910e6d710a936600905f9f6 from build tracker '/tmp/pip-req-tracker-lkr5ai4f'
2019-06-26T23:19:53 Removed build tracker '/tmp/pip-req-tracker-lkr5ai4f'
2019-06-26T23:19:53 ERROR: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-wheel-wskn2p0b/ConcurrentLogHandler/
2019-06-26T23:19:53 Exception information:
2019-06-26T23:19:53 Traceback (most recent call last):
2019-06-26T23:19:53   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 178, in main
2019-06-26T23:19:53     status = self.run(options, args)
2019-06-26T23:19:53   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 164, in run
2019-06-26T23:19:53     resolver.resolve(requirement_set)
2019-06-26T23:19:53   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 131, in resolve
2019-06-26T23:19:53     self._resolve_one(requirement_set, req)
2019-06-26T23:19:53   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 294, in _resolve_one
2019-06-26T23:19:53     abstract_dist = self._get_abstract_dist_for(req_to_install)
2019-06-26T23:19:53   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 242, in _get_abstract_dist_for
2019-06-26T23:19:53     self.require_hashes
2019-06-26T23:19:53   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/operations/prepare.py", line 362, in prepare_linked_requirement
2019-06-26T23:19:53     abstract_dist.prep_for_dist(finder, self.build_isolation)
2019-06-26T23:19:53   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/operations/prepare.py", line 171, in prep_for_dist
2019-06-26T23:19:53     self.req.prepare_metadata()
2019-06-26T23:19:53   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 537, in prepare_metadata
2019-06-26T23:19:53     self.run_egg_info()
2019-06-26T23:19:53   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 615, in run_egg_info
2019-06-26T23:19:53     command_desc='python setup.py egg_info')
2019-06-26T23:19:53   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/utils/misc.py", line 776, in call_subprocess
2019-06-26T23:19:53     % (command_desc, proc.returncode, cwd))
2019-06-26T23:19:53 pip._internal.exceptions.InstallationError: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-wheel-wskn2p0b/ConcurrentLogHandler/