2020-11-11T20:45:09,713 Created temporary directory: /tmp/pip-ephem-wheel-cache-pvoppivp
2020-11-11T20:45:09,716 Created temporary directory: /tmp/pip-req-tracker-b1b1a7c_
2020-11-11T20:45:09,716 Initialized build tracking at /tmp/pip-req-tracker-b1b1a7c_
2020-11-11T20:45:09,716 Created build tracker: /tmp/pip-req-tracker-b1b1a7c_
2020-11-11T20:45:09,716 Entered build tracker: /tmp/pip-req-tracker-b1b1a7c_
2020-11-11T20:45:09,717 Created temporary directory: /tmp/pip-wheel-lii1pq4q
2020-11-11T20:45:09,728 1 location(s) to search for versions of pipper:
2020-11-11T20:45:09,728 * https://pypi.org/simple/pipper/
2020-11-11T20:45:09,729 Fetching project page and analyzing links: https://pypi.org/simple/pipper/
2020-11-11T20:45:09,729 Getting page https://pypi.org/simple/pipper/
2020-11-11T20:45:09,731 Found index url https://pypi.org/simple
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2020-11-11T20:45:09,856   Found link https://files.pythonhosted.org/packages/70/db/ab631e363c4adb82d38d6c0b842e1b704e89c5026e61b4298e04ce84d330/pipper-0.0.1.tar.gz#sha256=1ce355fb61071a09c9d41ae53afa9f8d1145010360726c3b36548d00c7167549 (from https://pypi.org/simple/pipper/), version: 0.0.1
2020-11-11T20:45:09,856   Found link https://files.pythonhosted.org/packages/3d/47/128d8a2c29604f439938977dd512589d0e81e1c9fb1c10b980b013e8fdd4/pipper-0.1.0-py2.py3-none-any.whl#sha256=66da6f250faec562e930e5f44f0a2233ddf34c3e2a0b23a1b18045b27af23904 (from https://pypi.org/simple/pipper/), version: 0.1.0
2020-11-11T20:45:09,857   Found link https://files.pythonhosted.org/packages/53/97/6a3da05b0d524ecf658d2ec41fa088fcf23a4d50ba1232a1db624194769c/pipper-0.1.0.tar.gz#sha256=acb8e55763d64eab86b4c336abe2a47c231d8b5c2128fabb66c5da9de0db5c99 (from https://pypi.org/simple/pipper/), version: 0.1.0
2020-11-11T20:45:09,857   Found link https://files.pythonhosted.org/packages/03/fd/83e64bd57a0d85a1936f187f1749ba4778ec72e9ecd36b8b89c24c57eb1e/pipper-0.1.1-py2.py3-none-any.whl#sha256=5623497f3ab7c7f8f85325188b2bd98ad81224d6e0b542f23349a55526fcbe79 (from https://pypi.org/simple/pipper/), version: 0.1.1
2020-11-11T20:45:09,857   Found link https://files.pythonhosted.org/packages/17/65/94756907b500064ee7d2e79824f3d9eac14d1d1bb2a920f7103566d90527/pipper-0.1.1.tar.gz#sha256=af0ab32487f48808a8756864492a9ff7ccb3c6c542269a566cc5d0adffd6f5db (from https://pypi.org/simple/pipper/), version: 0.1.1
2020-11-11T20:45:09,858   Found link https://files.pythonhosted.org/packages/c7/a3/7cf422e128e17ca9f6cd62fe0d2539a6816b15270efea8cdb4af42e57bbe/pipper-0.1.2-py2.py3-none-any.whl#sha256=c41e9fe8fd6f1ead9e39ddb8227428f0a4e90b6d1e496880882434beb0e15bf5 (from https://pypi.org/simple/pipper/), version: 0.1.2
2020-11-11T20:45:09,858   Found link https://files.pythonhosted.org/packages/6b/7b/425e785fd3c84de3afb64e9495a161e9c8272b2ec3272abcdd9dc6b84707/pipper-0.1.2.tar.gz#sha256=a25c24a111c0c4c28d25e1bd2fe66e2b9757914fff06366a01885d3e2daa04a3 (from https://pypi.org/simple/pipper/), version: 0.1.2
2020-11-11T20:45:09,858   Found link https://files.pythonhosted.org/packages/3f/f1/c3331e7a77c29a2c2a214363828ad89159736be8e9b8d366f9cd1f78ef33/pipper-0.1.3-py2.py3-none-any.whl#sha256=1eea020d7d737ce3353245cfc840f25e91e6cdf7bc4130a2ad2a34743878b586 (from https://pypi.org/simple/pipper/), version: 0.1.3
2020-11-11T20:45:09,859   Found link https://files.pythonhosted.org/packages/9d/12/065ccdb06b0ea5c6fe06268c606e493285bb4547c3708c1277bf3f748e0c/pipper-0.1.3.tar.gz#sha256=5ee53a95d25a3b994fef88e500836be8edc6af5c24133efd95b97a0a1abbe5a1 (from https://pypi.org/simple/pipper/), version: 0.1.3
2020-11-11T20:45:09,859   Found link https://files.pythonhosted.org/packages/7c/0c/57c18173979c3fce770c208cee72283f43d29592a5467865fd478e70e365/pipper-0.1.4-py2.py3-none-any.whl#sha256=ef97293242eb5fdf3eaee603219f64dcb26b6a6d94bf3dac4a2f5d141847a394 (from https://pypi.org/simple/pipper/), version: 0.1.4
2020-11-11T20:45:09,859   Found link https://files.pythonhosted.org/packages/51/14/ff71b5abdc1e2a0059a9f205285d659d6ec46151ca760a225942d14cedab/pipper-0.1.4.tar.gz#sha256=7c9d5f35bdf99584b039bacc8df0a09e74e3478635efe1e8144340734bfeba4b (from https://pypi.org/simple/pipper/), version: 0.1.4
2020-11-11T20:45:09,860   Found link https://files.pythonhosted.org/packages/eb/43/175514cf49c2d24c44936b6b2e6faa5c3fec3a9f590cbf005031e47aa50e/pipper-0.1.5-py2.py3-none-any.whl#sha256=0d28d74c1389a31dbb37a7b324e7503d27d5188fa1ea35d50b52382194b6aa62 (from https://pypi.org/simple/pipper/), version: 0.1.5
2020-11-11T20:45:09,860   Found link https://files.pythonhosted.org/packages/4b/77/305c4ab6eae47c6bc6ff4cf9bdbba8e5b8ca2adb6eb921e585cfe56fbc75/pipper-0.1.5.tar.gz#sha256=0298c470dfc52ed8aa5f38cf60a4753827e0c205d9cffe3382645e8c49d73624 (from https://pypi.org/simple/pipper/), version: 0.1.5
2020-11-11T20:45:09,861   Found link https://files.pythonhosted.org/packages/54/f9/7ac40bd6330b65834c8f22a4ace0f65eeb99686fa61b08eca2ce550daaa6/pipper-0.1.6-py2.py3-none-any.whl#sha256=c37fab32fbf11036890cc62280f6b2bd6879d006a69430037567aa3dd8d3be33 (from https://pypi.org/simple/pipper/), version: 0.1.6
2020-11-11T20:45:09,861   Found link https://files.pythonhosted.org/packages/ea/61/a1a3bcc25b0d526862bcbdbb6bdc85280a7dfd9697184a52defff2cfe875/pipper-0.1.6.tar.gz#sha256=8b2a5de1306cd0716d26e224a5aaafb90334412114b1a2e80b39bdc5baf32792 (from https://pypi.org/simple/pipper/), version: 0.1.6
2020-11-11T20:45:09,861   Found link https://files.pythonhosted.org/packages/a3/98/73ff24dd5f029019d24336f43ab0aec5dfa990202792b6d1f51bdf6d36ba/pipper-0.1.7-py2.py3-none-any.whl#sha256=9842931fb2931b627a4d49874762d77a309bd7ceb9b590135872121f0e1cada7 (from https://pypi.org/simple/pipper/), version: 0.1.7
2020-11-11T20:45:09,862   Found link https://files.pythonhosted.org/packages/a4/9a/b62c86733796264baef3c93bb8ee1d4fc651ce2c640e6f1dfa591205b890/pipper-0.1.7.tar.gz#sha256=07eab6021f17c36e2c89db531d7f5c6862bb34321bb2022470159fd5193051e1 (from https://pypi.org/simple/pipper/), version: 0.1.7
2020-11-11T20:45:09,862   Found link https://files.pythonhosted.org/packages/bc/9c/fbce7c68ca62bf040925aacd1f4b2383f5b21feb4a2f48427bb6099e9303/pipper-0.1.8-py2.py3-none-any.whl#sha256=22d49ec3d6e1d47d9c97a166483afdda3dcdb84ec56eb543d206de4a2ccc5af6 (from https://pypi.org/simple/pipper/), version: 0.1.8
2020-11-11T20:45:09,862   Found link https://files.pythonhosted.org/packages/9b/1b/de761e75e29763c9915631521b026fc7c0c4f43fbaaa7e736a2437671852/pipper-0.1.8.tar.gz#sha256=dff49f54067ccc0004f5be0c458f7cc82d7d5914eaf24070d282f083f10f3041 (from https://pypi.org/simple/pipper/), version: 0.1.8
2020-11-11T20:45:09,863   Found link https://files.pythonhosted.org/packages/30/a2/c1ddb72f26ca6596ccb0de39265edbb11fccdfae5a07d5a9475fc8a765ca/pipper-0.1.9-py2.py3-none-any.whl#sha256=2a1986601edc3f1836baf224d89b4763b13ceebe6e9d8456ce5c4e34923268e4 (from https://pypi.org/simple/pipper/), version: 0.1.9
2020-11-11T20:45:09,863   Found link https://files.pythonhosted.org/packages/b9/de/d875ab7707f91ee40746c1123b7b15b60ec0450f6d45c525885fb609fdf2/pipper-0.1.9.tar.gz#sha256=a0ec56f061b3a7d1af15c4eadb93b4f0a35a7d31a2f8f87366f2cc132f59d8c3 (from https://pypi.org/simple/pipper/), version: 0.1.9
2020-11-11T20:45:09,864   Found link https://files.pythonhosted.org/packages/1d/ea/32d1eea457cec79ea4e6d7975469f0d00e71a3544efd6887775e09013682/pipper-0.1.10-py2.py3-none-any.whl#sha256=dfa33a6850b27599abaddf1a462389c4d20087f7cd12b3841714e7663c7db895 (from https://pypi.org/simple/pipper/), version: 0.1.10
2020-11-11T20:45:09,864   Found link https://files.pythonhosted.org/packages/68/ef/760e3bc6c4c96cf9a766b9b891a01973c11d585a4e95ff08faac597da61c/pipper-0.1.10.tar.gz#sha256=2a3b2b71cec2c7f92194bfe96ba14a39acb323a4d0cc939b4926ca463ed23c8f (from https://pypi.org/simple/pipper/), version: 0.1.10
2020-11-11T20:45:09,864   Found link https://files.pythonhosted.org/packages/13/fa/cfe8f7883f710e31ae0fe3f825a1da9d84bb993c3bd1dbf8b0ce84735226/pipper-0.1.11-py2.py3-none-any.whl#sha256=c04cbe97c8a7fc4d3d05858c6f46e95403eccbfe912fa0c563877929817f7654 (from https://pypi.org/simple/pipper/), version: 0.1.11
2020-11-11T20:45:09,865   Found link https://files.pythonhosted.org/packages/d9/50/880693cf57c0debfba6cfe60b71f3226137635ecec7c551fc98163a9afac/pipper-0.1.11.tar.gz#sha256=1b278dbe70eeaec5b8398eb7ee331cd890e68269523a6c0d64e3a46173608700 (from https://pypi.org/simple/pipper/), version: 0.1.11
2020-11-11T20:45:09,865   Found link https://files.pythonhosted.org/packages/f2/10/f41a2f04ed090858f8e643a7607c75494dcb916f0ac5daf1c51b0decf1c1/pipper-0.1.12-py2.py3-none-any.whl#sha256=38fae0af64fdce86f1e33d1969be2205d1fc0bdb2f9fbc3ff463f6aa0555c460 (from https://pypi.org/simple/pipper/), version: 0.1.12
2020-11-11T20:45:09,865   Found link https://files.pythonhosted.org/packages/94/fd/ee32ef8954ad5c3c8e6634f32c001b32d7654669c339c3a1f3429e50af06/pipper-0.1.12.tar.gz#sha256=51ca3e3cc401310a2258e6b403ee88f3ba3fa44e908fb9db665a9af563cb5b1a (from https://pypi.org/simple/pipper/), version: 0.1.12
2020-11-11T20:45:09,866   Found link https://files.pythonhosted.org/packages/31/d7/8b10f0544f5a6a1305cefa16665c101faa5401fb0a0cf70e97c51dd9ef42/pipper-0.1.13-py2.py3-none-any.whl#sha256=758ccd27b67f16b74efeb827368defb2ba0b513f2571746a0e62c250ec6bccad (from https://pypi.org/simple/pipper/), version: 0.1.13
2020-11-11T20:45:09,866   Found link https://files.pythonhosted.org/packages/2d/8c/6f73f86604959807bda9c0c3e34e99f0d8ec3dd922bed3ec46d650203466/pipper-0.1.13.tar.gz#sha256=9a6e3587a793da19c1b7bb6288fd7a25be74bada88697d66b89e6ee782423422 (from https://pypi.org/simple/pipper/), version: 0.1.13
2020-11-11T20:45:09,866   Found link https://files.pythonhosted.org/packages/5d/b9/93bf4e10f270fa2ae5af5c2941cd7020522233c193e4c2ce12d1fbac3d1f/pipper-0.1.14-py2.py3-none-any.whl#sha256=560694899607a9c86f7c11471db69bd7e0a8c6c52f7e8265e4a45b837cc50a76 (from https://pypi.org/simple/pipper/), version: 0.1.14
2020-11-11T20:45:09,867   Found link https://files.pythonhosted.org/packages/fb/45/98d9361a37ff3da073b7a1ba4f3c7ce9d1c52b606a1d848aad8dd157ac6e/pipper-0.1.14.tar.gz#sha256=f48fd3f50210db2971d777f0a4451866015090152141c2c2eac3e40559d46fb0 (from https://pypi.org/simple/pipper/), version: 0.1.14
2020-11-11T20:45:09,867   Found link https://files.pythonhosted.org/packages/b7/1d/5b62f1ae9363444139d5b1c853c74a19760872bcd2108c18f46860f0d5aa/pipper-0.1.15-py2.py3-none-any.whl#sha256=7636336a513fdf28d80ee1747861e32113620823f1c56003e94f6d16617c92a9 (from https://pypi.org/simple/pipper/), version: 0.1.15
2020-11-11T20:45:09,868   Found link https://files.pythonhosted.org/packages/12/b8/1a917e93b890f990472b868a01e837c9a53d96355cc5aa9281fc26735f46/pipper-0.1.15.tar.gz#sha256=b56e223b49ff67ea97903d85899c4582c4ff7e9f06343d7014a053a4db1c5f84 (from https://pypi.org/simple/pipper/), version: 0.1.15
2020-11-11T20:45:09,868   Found link https://files.pythonhosted.org/packages/31/2b/af85a661369c66f5d7af74f5a4de9062181bdbff079b3ec19a5d4040c070/pipper-0.1.16-py2.py3-none-any.whl#sha256=1572ebc41f084f8fa58d490b17daedfb86e2e4d604ef60474ee83f2181638e97 (from https://pypi.org/simple/pipper/), version: 0.1.16
2020-11-11T20:45:09,868   Found link https://files.pythonhosted.org/packages/97/45/8d60436e5cf85b1de787d2fd73c189e9fb192d352cad2b5fa26bbef82fa3/pipper-0.1.16.tar.gz#sha256=834346b01a99cfe1974bd56c845384817a8923e7bfbc443755674af450b3688e (from https://pypi.org/simple/pipper/), version: 0.1.16
2020-11-11T20:45:09,869   Found link https://files.pythonhosted.org/packages/c0/83/d7a19e466b71bfa99a8b6bd3e7670f547c4da1d7f72f960dec29bb12e019/pipper-0.1.17-py2.py3-none-any.whl#sha256=91eb3b1d80d966acbb0da5d439c5a67e1491ac2982459a07e807207e49d5e3c7 (from https://pypi.org/simple/pipper/), version: 0.1.17
2020-11-11T20:45:09,869   Found link https://files.pythonhosted.org/packages/d0/e9/a30714fdc1eda85a571ce5970404f056ec4e73f8ce4d522c225832514f3e/pipper-0.1.17.tar.gz#sha256=abaf3f719550876086b221187ab73c5bcb109fcd6419e8c8c95dac5da178a068 (from https://pypi.org/simple/pipper/), version: 0.1.17
2020-11-11T20:45:09,869   Found link https://files.pythonhosted.org/packages/8d/19/45f6f86f355789a91fc45bc1dd870c775d2479befa014fde905f54aab061/pipper-0.1.18-py2.py3-none-any.whl#sha256=dedf5d853b88040d96329c336cd21eabb8525310c57e4873f61fbf6ffe8df3a8 (from https://pypi.org/simple/pipper/), version: 0.1.18
2020-11-11T20:45:09,870   Found link https://files.pythonhosted.org/packages/a5/58/77b7836027e65bc360e19cb2455eeb35b5c8018eb060505ec7b8c9717986/pipper-0.1.18.tar.gz#sha256=789c33879931bdc82f8f94d9a88774637c68ae66bed5359f2a52dfe125578508 (from https://pypi.org/simple/pipper/), version: 0.1.18
2020-11-11T20:45:09,870   Found link https://files.pythonhosted.org/packages/46/5b/cbded6d01da355d4663f7e943dc391f44b38ffdc906ae514e7fac80ab260/pipper-0.1.19-py2.py3-none-any.whl#sha256=dd910810dfb547409ee2e5a1a95cdad039e5709b5c3e5e0fc021cfae5f9a394e (from https://pypi.org/simple/pipper/), version: 0.1.19
2020-11-11T20:45:09,870   Found link https://files.pythonhosted.org/packages/e9/b4/ca4abc7fd91df6b1d6700582acadbc47acacf2416cf22002bb43247d6b7d/pipper-0.1.19.tar.gz#sha256=ce615e8c4fd035d357271b125b42d35fcd0969ba589eacf66323acd568d3d283 (from https://pypi.org/simple/pipper/), version: 0.1.19
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2020-11-11T20:45:09,871   Found link https://files.pythonhosted.org/packages/d1/64/c570a4d0b70f15cdceb7c710f9cf99ceb87099179b33fdda6940dc58a819/pipper-0.2.0.tar.gz#sha256=286628c7b76873ca80a8d789e1dd0a112b9a503672e3e5d4e7ca0a74e90897a4 (from https://pypi.org/simple/pipper/), version: 0.2.0
2020-11-11T20:45:09,871   Found link https://files.pythonhosted.org/packages/5d/b5/7d7be0a1ac2c4f9d51981f31f52f86fff3a2d6f0ef5768a85067405df23d/pipper-0.2.1-py2.py3-none-any.whl#sha256=f680eaa661a08d9d6325fd58bb39b3175f03002aa89e62b3abd640de22b3ffe3 (from https://pypi.org/simple/pipper/), version: 0.2.1
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2020-11-11T20:45:09,872   Found link https://files.pythonhosted.org/packages/44/72/4e3f687c6b6b30d59ea69cdea29db7f09054a7852d7d31e54deac3ac3884/pipper-0.3.0.tar.gz#sha256=0f267996f1042957936ed1d5b2caf56d478cf26703bbf538781c4c96c669a24d (from https://pypi.org/simple/pipper/), version: 0.3.0
2020-11-11T20:45:09,873   Found link https://files.pythonhosted.org/packages/0f/4f/418c9fba9c334295c38ae7c7beb6c1fcea9c5164668dceedf289d7a177ad/pipper-0.3.1-py2.py3-none-any.whl#sha256=699fdf7dfefb0548f18f406e88583a3e86e5865b610376fe3fc597f59d371ec2 (from https://pypi.org/simple/pipper/), version: 0.3.1
2020-11-11T20:45:09,873   Found link https://files.pythonhosted.org/packages/fc/45/56f3d0bcca17cec899a438a29aad5fd1a18f80fd452a9459198785af415f/pipper-0.3.1.tar.gz#sha256=1a037ee21f300a4546137272a828cbfdfcdf52f099221732a212719507cf9eba (from https://pypi.org/simple/pipper/), version: 0.3.1
2020-11-11T20:45:09,874   Found link https://files.pythonhosted.org/packages/02/ae/7b3e53016c05642f8e5482dd27b5fffcd38fd089c083ca9cff9d7a99a36f/pipper-0.4.0-py2.py3-none-any.whl#sha256=411ed6e163310eb6936414e3099b45f0c557726d79c4f618200e83b898cb1c8c (from https://pypi.org/simple/pipper/), version: 0.4.0
2020-11-11T20:45:09,874   Found link https://files.pythonhosted.org/packages/d6/7e/b7f0281b01a38d06e397afe2b86ec3574ba1e7225c5b3af5d110bb6bdb2b/pipper-0.4.0.tar.gz#sha256=ed7c8227cff0bd92c9585e1fa171fbe4950eac503a8df71f0bc4f2347778b86f (from https://pypi.org/simple/pipper/), version: 0.4.0
2020-11-11T20:45:09,874   Found link https://files.pythonhosted.org/packages/05/8f/c5630758c493a8924d4952c8059dcc264d157dc2ad5775a340a3166c7a70/pipper-0.5.0-py2.py3-none-any.whl#sha256=15c47d568410f788c0dc80d8c52e75b7ea9a3495b8ae85d7e08697536b77347e (from https://pypi.org/simple/pipper/), version: 0.5.0
2020-11-11T20:45:09,875   Found link https://files.pythonhosted.org/packages/cd/98/90ba9187080532c1d30004ad29302b3586dcfecefe659a87a4d420026f34/pipper-0.5.0.tar.gz#sha256=d4f80712e18a18e36cc7341206ae380fe32764e293244681384733a27d8d0648 (from https://pypi.org/simple/pipper/), version: 0.5.0
2020-11-11T20:45:09,875   Found link https://files.pythonhosted.org/packages/86/af/359cc0c847f461197c015864d080b6b9b2c3ae252231ff362829fd32d46d/pipper-0.5.1-py2.py3-none-any.whl#sha256=ee663435885722f3ce21fd13b30dd3cc86b7540b5be566cc9af7df60a9bc905a (from https://pypi.org/simple/pipper/), version: 0.5.1
2020-11-11T20:45:09,875   Found link https://files.pythonhosted.org/packages/b2/8e/202b8e797c3d7ca1cff89df20b8ae16f6fcbfd377839a32f7637a701514c/pipper-0.5.1.tar.gz#sha256=86247e6b1e4b279c76936991b0a7948e0b3d9d58e83dfaf06896989636c81176 (from https://pypi.org/simple/pipper/), version: 0.5.1
2020-11-11T20:45:09,876   Found link https://files.pythonhosted.org/packages/a3/6f/413a504f4c702d02deac60a7c4fcc77ebad1f101adb0bb9f57fa678a34a7/pipper-0.6.0-py2.py3-none-any.whl#sha256=711a7a2dee02895948ea81cc55c0773121da7a2288a547186ac7f16443c03f4a (from https://pypi.org/simple/pipper/), version: 0.6.0
2020-11-11T20:45:09,876   Found link https://files.pythonhosted.org/packages/56/ea/d72d3d40103c11ee357e453005cba49d6ad6a5cf0f397cc3448a88d647a2/pipper-0.6.0.tar.gz#sha256=1671a0029b747a8a8cd19ec0ca9c7e093f65f9614d1fcde814536b0c93abfcc9 (from https://pypi.org/simple/pipper/), version: 0.6.0
2020-11-11T20:45:09,877   Found link https://files.pythonhosted.org/packages/c7/64/8bc2c1c0ba706c15728a99d6990f99900717266ec49b725af5b1ab37cc74/pipper-0.7.0-py2.py3-none-any.whl#sha256=fb3eee45662a69f51d53102109379e870ffe0aae67f817f3e62773f7270c3eb6 (from https://pypi.org/simple/pipper/), version: 0.7.0
2020-11-11T20:45:09,877   Found link https://files.pythonhosted.org/packages/04/88/fbd4df4b672d557beddaebc677683343f3e05d3130a6d0d7ab94caca6fcb/pipper-0.7.0.tar.gz#sha256=9661b920d33a821089144468f67fe1a7a9e41a8886166f470d1d7846a17801f5 (from https://pypi.org/simple/pipper/), version: 0.7.0
2020-11-11T20:45:09,878   Link requires a different Python (3.7.3 not in: '>=3.8,<4.0'): https://files.pythonhosted.org/packages/e9/f9/83c4812c4fc303f3ce3048c72810afcc470e38e133644e6a2165c073a724/pipper-0.8.0-py3-none-any.whl#sha256=26a89bbcd2dd38ed9c87a0104829a5d681b25b47d3edc776722f3f871b5d0281 (from https://pypi.org/simple/pipper/) (requires-python:>=3.8,<4.0)
2020-11-11T20:45:09,879   Link requires a different Python (3.7.3 not in: '>=3.8,<4.0'): https://files.pythonhosted.org/packages/6a/39/3bb8e3fd1bf5487bc45863a5bb22be55320533a80cddf5c9aece8c6f3e46/pipper-0.8.0.tar.gz#sha256=cef95ee99907b422565e48cfceaa2775ba7f31aefb15874e6f37784c648a061d (from https://pypi.org/simple/pipper/) (requires-python:>=3.8,<4.0)
2020-11-11T20:45:09,888 Given no hashes to check 0 links for project 'pipper': discarding no candidates
2020-11-11T20:45:09,891 ERROR: Could not find a version that satisfies the requirement pipper==0.8.0 (from versions: 0.0.1, 0.1.0, 0.1.1, 0.1.2, 0.1.3, 0.1.4, 0.1.5, 0.1.6, 0.1.7, 0.1.8, 0.1.9, 0.1.10, 0.1.11, 0.1.12, 0.1.13, 0.1.14, 0.1.15, 0.1.16, 0.1.17, 0.1.18, 0.1.19, 0.2.0, 0.2.1, 0.3.0, 0.3.1, 0.4.0, 0.5.0, 0.5.1, 0.6.0, 0.7.0)
2020-11-11T20:45:09,891 ERROR: No matching distribution found for pipper==0.8.0
2020-11-11T20:45:09,892 Exception information:
2020-11-11T20:45:09,892 Traceback (most recent call last):
2020-11-11T20:45:09,892   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 228, in _main
2020-11-11T20:45:09,892     status = self.run(options, args)
2020-11-11T20:45:09,892   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/req_command.py", line 182, in wrapper
2020-11-11T20:45:09,892     return func(self, options, args)
2020-11-11T20:45:09,892   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 156, in run
2020-11-11T20:45:09,892     reqs, check_supported_wheels=True
2020-11-11T20:45:09,892   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 183, in resolve
2020-11-11T20:45:09,892     discovered_reqs.extend(self._resolve_one(requirement_set, req))
2020-11-11T20:45:09,892   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 388, in _resolve_one
2020-11-11T20:45:09,892     abstract_dist = self._get_abstract_dist_for(req_to_install)
2020-11-11T20:45:09,892   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 339, in _get_abstract_dist_for
2020-11-11T20:45:09,892     self._populate_link(req)
2020-11-11T20:45:09,892   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 305, in _populate_link
2020-11-11T20:45:09,892     req.link = self._find_requirement_link(req)
2020-11-11T20:45:09,892   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolution/legacy/resolver.py", line 270, in _find_requirement_link
2020-11-11T20:45:09,892     best_candidate = self.finder.find_requirement(req, upgrade)
2020-11-11T20:45:09,892   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/index/package_finder.py", line 928, in find_requirement
2020-11-11T20:45:09,892     req)
2020-11-11T20:45:09,892 pip._internal.exceptions.DistributionNotFound: No matching distribution found for pipper==0.8.0
2020-11-11T20:45:09,896 Removed build tracker: '/tmp/pip-req-tracker-b1b1a7c_'