updated dependancies + fixed lint error

Pipfile.lock

@@ -62,54 +62,17 @@
         },
         "certifi": {
             "hashes": [
-                "sha256:339dc09518b07e2fa7eda5450740925974815557727d6bd35d319c1524a04a4c",
-                "sha256:6d58c986d22b038c8c0df30d639f23a3e6d172a05c3583e766f4c0b785c0986a"
-            ],
-            "version": "==2018.10.15"
-        },
-        "cffi": {
-            "hashes": [
-                "sha256:151b7eefd035c56b2b2e1eb9963c90c6302dc15fbd8c1c0a83a163ff2c7d7743",
-                "sha256:1553d1e99f035ace1c0544050622b7bc963374a00c467edafac50ad7bd276aef",
-                "sha256:1b0493c091a1898f1136e3f4f991a784437fac3673780ff9de3bcf46c80b6b50",
-                "sha256:2ba8a45822b7aee805ab49abfe7eec16b90587f7f26df20c71dd89e45a97076f",
-                "sha256:3bb6bd7266598f318063e584378b8e27c67de998a43362e8fce664c54ee52d30",
-                "sha256:3c85641778460581c42924384f5e68076d724ceac0f267d66c757f7535069c93",
-                "sha256:3eb6434197633b7748cea30bf0ba9f66727cdce45117a712b29a443943733257",
-                "sha256:495c5c2d43bf6cebe0178eb3e88f9c4aa48d8934aa6e3cddb865c058da76756b",
-                "sha256:4c91af6e967c2015729d3e69c2e51d92f9898c330d6a851bf8f121236f3defd3",
-                "sha256:57b2533356cb2d8fac1555815929f7f5f14d68ac77b085d2326b571310f34f6e",
-                "sha256:770f3782b31f50b68627e22f91cb182c48c47c02eb405fd689472aa7b7aa16dc",
-                "sha256:79f9b6f7c46ae1f8ded75f68cf8ad50e5729ed4d590c74840471fc2823457d04",
-                "sha256:7a33145e04d44ce95bcd71e522b478d282ad0eafaf34fe1ec5bbd73e662f22b6",
-                "sha256:857959354ae3a6fa3da6651b966d13b0a8bed6bbc87a0de7b38a549db1d2a359",
-                "sha256:87f37fe5130574ff76c17cab61e7d2538a16f843bb7bca8ebbc4b12de3078596",
-                "sha256:95d5251e4b5ca00061f9d9f3d6fe537247e145a8524ae9fd30a2f8fbce993b5b",
-                "sha256:9d1d3e63a4afdc29bd76ce6aa9d58c771cd1599fbba8cf5057e7860b203710dd",
-                "sha256:a36c5c154f9d42ec176e6e620cb0dd275744aa1d804786a71ac37dc3661a5e95",
-                "sha256:a6a5cb8809091ec9ac03edde9304b3ad82ad4466333432b16d78ef40e0cce0d5",
-                "sha256:ae5e35a2c189d397b91034642cb0eab0e346f776ec2eb44a49a459e6615d6e2e",
-                "sha256:b0f7d4a3df8f06cf49f9f121bead236e328074de6449866515cea4907bbc63d6",
-                "sha256:b75110fb114fa366b29a027d0c9be3709579602ae111ff61674d28c93606acca",
-                "sha256:ba5e697569f84b13640c9e193170e89c13c6244c24400fc57e88724ef610cd31",
-                "sha256:be2a9b390f77fd7676d80bc3cdc4f8edb940d8c198ed2d8c0be1319018c778e1",
-                "sha256:ca1bd81f40adc59011f58159e4aa6445fc585a32bb8ac9badf7a2c1aa23822f2",
-                "sha256:d5d8555d9bfc3f02385c1c37e9f998e2011f0db4f90e250e5bc0c0a85a813085",
-                "sha256:e55e22ac0a30023426564b1059b035973ec82186ddddbac867078435801c7801",
-                "sha256:e90f17980e6ab0f3c2f3730e56d1fe9bcba1891eeea58966e89d352492cc74f4",
-                "sha256:ecbb7b01409e9b782df5ded849c178a0aa7c906cf8c5a67368047daab282b184",
-                "sha256:ed01918d545a38998bfa5902c7c00e0fee90e957ce036a4000a88e3fe2264917",
-                "sha256:edabd457cd23a02965166026fd9bfd196f4324fe6032e866d0f3bd0301cd486f",
-                "sha256:fdf1c1dc5bafc32bc5d08b054f94d659422b05aba244d6be4ddc1c72d9aa70fb"
-            ],
-            "version": "==1.11.5"
+                "sha256:47f9c83ef4c0c621eaef743f133f09fa8a74a9b75f037e8624f83bd1b6626cb7",
+                "sha256:993f830721089fef441cdfeb4b2c8c9df86f0c63239f06bd025a76a7daddb033"
+            ],
+            "version": "==2018.11.29"
         },
         "cfgv": {
             "hashes": [
-                "sha256:73f48a752bd7aab103c4b882d6596c6360b7aa63b34073dd2c35c7b4b8f93010",
-                "sha256:d1791caa9ff5c0c7bce80e7ecc1921752a2eb7c2463a08ed9b6c96b85a2f75aa"
+                "sha256:4e9f92594621a43304928415936a0da1b8d3ced23b0ca8c38e9865343920143c",
+                "sha256:f2756f6dc1af3762a996b39f20c28b4731b6006e992017442a5fc93e81650791"
             ],
-            "version": "==1.1.0"
+            "version": "==1.3.0"
         },
         "chardet": {
             "hashes": [
@@ -118,74 +81,41 @@
             ],
             "version": "==3.0.4"
         },
-        "cmarkgfm": {
-            "hashes": [
-                "sha256:0186dccca79483e3405217993b83b914ba4559fe9a8396efc4eea56561b74061",
-                "sha256:1a625afc6f62da428df96ec325dc30866cc5781520cbd904ff4ec44cf018171c",
-                "sha256:207b7673ff4e177374c572feeae0e4ef33be620ec9171c08fd22e2b796e03e3d",
-                "sha256:275905bb371a99285c74931700db3f0c078e7603bed383e8cf1a09f3ee05a3de",
-                "sha256:50098f1c4950722521f0671e54139e0edc1837d63c990cf0f3d2c49607bb51a2",
-                "sha256:50ed116d0b60a07df0dc7b180c28569064b9d37d1578d4c9021cff04d725cb63",
-                "sha256:61a72def110eed903cd1848245897bcb80d295cd9d13944d4f9f30cba5b76655",
-                "sha256:64186fb75d973a06df0e6ea12879533b71f6e7ba1ab01ffee7fc3e7534758889",
-                "sha256:665303d34d7f14f10d7b0651082f25ebf7107f29ef3d699490cac16cdc0fc8ce",
-                "sha256:70b18f843aec58e4e64aadce48a897fe7c50426718b7753aaee399e72df64190",
-                "sha256:761ee7b04d1caee2931344ac6bfebf37102ffb203b136b676b0a71a3f0ea3c87",
-                "sha256:811527e9b7280b136734ed6cb6845e5fbccaeaa132ddf45f0246cbe544016957",
-                "sha256:987b0e157f70c72a84f3c2f9ef2d7ab0f26c08f2bf326c12c087ff9eebcb3ff5",
-                "sha256:9fc6a2183d0a9b0974ec7cdcdad42bd78a3be674cc3e65f87dd694419b3b0ab7",
-                "sha256:a3d17ee4ae739fe16f7501a52255c2e287ac817cfd88565b9859f70520afffea",
-                "sha256:ba5b5488719c0f2ced0aa1986376f7baff1a1653a8eb5fdfcf3f84c7ce46ef8d",
-                "sha256:c573ea89dd95d41b6d8cf36799c34b6d5b1eac4aed0212dee0f0a11fb7b01e8f",
-                "sha256:c5f1b9e8592d2c448c44e6bc0d91224b16ea5f8293908b1561de1f6d2d0658b1",
-                "sha256:cbe581456357d8f0674d6a590b1aaf46c11d01dd0a23af147a51a798c3818034",
-                "sha256:cf219bec69e601fe27e3974b7307d2f06082ab385d42752738ad2eb630a47d65",
-                "sha256:cf5014eb214d814a83a7a47407272d5db10b719dbeaf4d3cfe5969309d0fcf4b",
-                "sha256:d08bad67fa18f7e8ff738c090628ee0cbf0505d74a991c848d6d04abfe67b697",
-                "sha256:d6f716d7b1182bf35862b5065112f933f43dd1aa4f8097c9bcfb246f71528a34",
-                "sha256:e08e479102627641c7cb4ece421c6ed4124820b1758765db32201136762282d9",
-                "sha256:e20ac21418af0298437d29599f7851915497ce9f2866bc8e86b084d8911ee061",
-                "sha256:e25f53c37e319241b9a412382140dffac98ca756ba8f360ac7ab5e30cad9670a",
-                "sha256:e8932bddf159064f04e946fbb64693753488de21586f20e840b3be51745c8c09",
-                "sha256:f20900f16377f2109783ae9348d34bc80530808439591c3d3df73d5c7ef1a00c"
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-            "version": "==0.4.2"
-        },
         "coverage": {
             "hashes": [
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-                "sha256:56e448f051a201c5ebbaa86a5efd0ca90d327204d8b059ab25ad0f35fbfd79f1",
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-                "sha256:69bf008a06b76619d3c3f3b1983f5145c75a305a0fea513aca094cae5c40a8f5",
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-                "sha256:701cd6093d63e6b8ad7009d8a92425428bc4d6e7ab8d75efbb665c806c1d79ba",
-                "sha256:7608a3dd5d73cb06c531b8925e0ef8d3de31fed2544a7de6c63960a1e73ea4bc",
-                "sha256:76ecd006d1d8f739430ec50cc872889af1f9c1b6b8f48e29941814b09b0fd3cc",
-                "sha256:7aa36d2b844a3e4a4b356708d79fd2c260281a7390d678a10b91ca595ddc9e99",
-                "sha256:7d3f553904b0c5c016d1dad058a7554c7ac4c91a789fca496e7d8347ad040653",
-                "sha256:7e1fe19bd6dce69d9fd159d8e4a80a8f52101380d5d3a4d374b6d3eae0e5de9c",
-                "sha256:8c3cb8c35ec4d9506979b4cf90ee9918bc2e49f84189d9bf5c36c0c1119c6558",
-                "sha256:9d6dd10d49e01571bf6e147d3b505141ffc093a06756c60b053a859cb2128b1f",
-                "sha256:be6cfcd8053d13f5f5eeb284aa8a814220c3da1b0078fa859011c7fffd86dab9",
-                "sha256:c1bb572fab8208c400adaf06a8133ac0712179a334c09224fb11393e920abcdd",
-                "sha256:de4418dadaa1c01d497e539210cb6baa015965526ff5afc078c57ca69160108d",
-                "sha256:e05cb4d9aad6233d67e0541caa7e511fa4047ed7750ec2510d466e806e0255d6",
-                "sha256:f3f501f345f24383c0000395b26b726e46758b71393267aeae0bd36f8b3ade80"
-            ],
-            "version": "==4.5.1"
+                "sha256:09e47c529ff77bf042ecfe858fb55c3e3eb97aac2c87f0349ab5a7efd6b3939f",
+                "sha256:0a1f9b0eb3aa15c990c328535655847b3420231af299386cfe5efc98f9c250fe",
+                "sha256:0cc941b37b8c2ececfed341444a456912e740ecf515d560de58b9a76562d966d",
+                "sha256:10e8af18d1315de936d67775d3a814cc81d0747a1a0312d84e27ae5610e313b0",
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+                "sha256:1e8a2627c48266c7b813975335cfdea58c706fe36f607c97d9392e61502dc79d",
+                "sha256:2b224052bfd801beb7478b03e8a66f3f25ea56ea488922e98903914ac9ac930b",
+                "sha256:447c450a093766744ab53bf1e7063ec82866f27bcb4f4c907da25ad293bba7e3",
+                "sha256:46101fc20c6f6568561cdd15a54018bb42980954b79aa46da8ae6f008066a30e",
+                "sha256:4710dc676bb4b779c4361b54eb308bc84d64a2fa3d78e5f7228921eccce5d815",
+                "sha256:510986f9a280cd05189b42eee2b69fecdf5bf9651d4cd315ea21d24a964a3c36",
+                "sha256:5535dda5739257effef56e49a1c51c71f1d37a6e5607bb25a5eee507c59580d1",
+                "sha256:5a7524042014642b39b1fcae85fb37556c200e64ec90824ae9ecf7b667ccfc14",
+                "sha256:5f55028169ef85e1fa8e4b8b1b91c0b3b0fa3297c4fb22990d46ff01d22c2d6c",
+                "sha256:6694d5573e7790a0e8d3d177d7a416ca5f5c150742ee703f3c18df76260de794",
+                "sha256:6831e1ac20ac52634da606b658b0b2712d26984999c9d93f0c6e59fe62ca741b",
+                "sha256:77f0d9fa5e10d03aa4528436e33423bfa3718b86c646615f04616294c935f840",
+                "sha256:828ad813c7cdc2e71dcf141912c685bfe4b548c0e6d9540db6418b807c345ddd",
+                "sha256:85a06c61598b14b015d4df233d249cd5abfa61084ef5b9f64a48e997fd829a82",
+                "sha256:8cb4febad0f0b26c6f62e1628f2053954ad2c555d67660f28dfb1b0496711952",
+                "sha256:a5c58664b23b248b16b96253880b2868fb34358911400a7ba39d7f6399935389",
+                "sha256:aaa0f296e503cda4bc07566f592cd7a28779d433f3a23c48082af425d6d5a78f",
+                "sha256:ab235d9fe64833f12d1334d29b558aacedfbca2356dfb9691f2d0d38a8a7bfb4",
+                "sha256:b3b0c8f660fae65eac74fbf003f3103769b90012ae7a460863010539bb7a80da",
+                "sha256:bab8e6d510d2ea0f1d14f12642e3f35cefa47a9b2e4c7cea1852b52bc9c49647",
+                "sha256:c45297bbdbc8bb79b02cf41417d63352b70bcb76f1bbb1ee7d47b3e89e42f95d",
+                "sha256:d19bca47c8a01b92640c614a9147b081a1974f69168ecd494687c827109e8f42",
+                "sha256:d64b4340a0c488a9e79b66ec9f9d77d02b99b772c8b8afd46c1294c1d39ca478",
+                "sha256:da969da069a82bbb5300b59161d8d7c8d423bc4ccd3b410a9b4d8932aeefc14b",
+                "sha256:ed02c7539705696ecb7dc9d476d861f3904a8d2b7e894bd418994920935d36bb",
+                "sha256:ee5b8abc35b549012e03a7b1e86c09491457dba6c94112a2482b18589cc2bdb9"
+            ],
+            "version": "==4.5.2"
         },
         "coveralls": {
             "hashes": [
@@ -221,31 +151,40 @@
         },
         "flake8": {
             "hashes": [
-                "sha256:7253265f7abd8b313e3892944044a365e3f4ac3fcdcfb4298f55ee9ddf188ba0",
-                "sha256:c7841163e2b576d435799169b78703ad6ac1bbb0f199994fc05f700b2a90ea37"
+                "sha256:6a35f5b8761f45c5513e3405f110a86bea57982c3b75b766ce7b65217abe1670",
+                "sha256:c01f8a3963b3571a8e6bd7a4063359aff90749e160778e03817cd9b71c9e07d2"
             ],
             "index": "pypi",
-            "version": "==3.5.0"
+            "version": "==3.6.0"
         },
-        "future": {
+        "identify": {
             "hashes": [
-                "sha256:e39ced1ab767b5936646cedba8bcce582398233d6a627067d4c6a454c90cfedb"
+                "sha256:08826e68e39e7de53cc2ddd8f6228a4e463b4bacb20565e5301c3ec690e68d27",
+                "sha256:2364e24a7699fea0dc910e90740adbab43eef3746eeea4e016029c34123ce66d"
             ],
-            "version": "==0.16.0"
+            "version": "==1.1.8"
         },
-        "identify": {
+        "idna": {
             "hashes": [
-                "sha256:5e956558a9a1e3b3891d7c6609fc9709657a11878af288ace484d1a46a93922b",
-                "sha256:623086059219cc7b86c77a3891f3700cb175d4ce02b8fb8802b047301d71e783"
+                "sha256:c357b3f628cf53ae2c4c05627ecc484553142ca23264e593d327bcde5e9c3407",
+                "sha256:ea8b7f6188e6fa117537c3df7da9fc686d485087abf6ac197f9c46432f7e4a3c"
             ],
-            "version": "==1.1.7"
+            "version": "==2.8"
         },
-        "idna": {
+        "importlib-metadata": {
             "hashes": [
-                "sha256:156a6814fb5ac1fc6850fb002e0852d56c0c8d2531923a51032d1b70760e186e",
-                "sha256:684a38a6f903c1d71d6d5fac066b58d7768af4de2b832e426ec79c30daa94a16"
+                "sha256:a17ce1a8c7bff1e8674cb12c992375d8d0800c9190177ecf0ad93e0097224095",
+                "sha256:b50191ead8c70adfa12495fba19ce6d75f2e0275c14c5a7beb653d6799b512bd"
             ],
-            "version": "==2.7"
+            "version": "==0.8"
+        },
+        "importlib-resources": {
+            "hashes": [
+                "sha256:6e2783b2538bd5a14678284a3962b0660c715e5a0f10243fd5e00a4b5974f50b",
+                "sha256:d3279fd0f6f847cced9f7acc19bd3e5df54d34f93a2e7bb5f238f81545787078"
+            ],
+            "markers": "python_version < '3.7'",
+            "version": "==1.0.2"
         },
         "mccabe": {
             "hashes": [
@@ -264,32 +203,32 @@
         },
         "more-itertools": {
             "hashes": [
-                "sha256:c187a73da93e7a8acc0001572aebc7e3c69daf7bf6881a2cea10650bd4420092",
-                "sha256:c476b5d3a34e12d40130bc2f935028b5f636df8f372dc2c1c01dc19681b2039e",
-                "sha256:fcbfeaea0be121980e15bc97b3817b5202ca73d0eae185b4550cbfce2a3ebb3d"
+                "sha256:38a936c0a6d98a38bcc2d03fdaaedaba9f412879461dd2ceff8d37564d6522e4",
+                "sha256:c0a5785b1109a6bd7fac76d6837fd1feca158e54e521ccd2ae8bfe393cc9d4fc",
+                "sha256:fe7a7cae1ccb57d33952113ff4fa1bc5f879963600ed74918f1236e212ee50b9"
             ],
-            "version": "==4.3.0"
+            "version": "==5.0.0"
         },
         "nodeenv": {
             "hashes": [
-                "sha256:aa040ab5189bae17d272175609010be6c5b589ec4b8dbd832cc50c9e9cb7496f"
+                "sha256:ad8259494cf1c9034539f6cced78a1da4840a4b157e23640bc4a0c0546b0cb7a"
             ],
-            "version": "==1.3.2"
+            "version": "==1.3.3"
         },
         "pathlib2": {
             "hashes": [
-                "sha256:8eb170f8d0d61825e09a95b38be068299ddeda82f35e96c3301a8a5e7604cb83",
-                "sha256:d1aa2a11ba7b8f7b21ab852b1fb5afb277e1bb99d5dfc663380b5015c0d80c5a"
+                "sha256:25199318e8cc3c25dcb45cbe084cc061051336d5a9ea2a12448d3d8cb748f742",
+                "sha256:5887121d7f7df3603bca2f710e7219f3eca0eb69e0b7cc6e0a022e155ac931a7"
             ],
             "index": "pypi",
-            "version": "==2.3.2"
+            "version": "==2.3.3"
         },
         "pbr": {
             "hashes": [
-                "sha256:ab94783019179bf48f5784edc63f5bc8328ec5ff93f33591567f266d21ac7323",
-                "sha256:bfcff1a3878eebf559392c2130a17f612a03f96a0d44c3559d9c1e62a4235a2d"
+                "sha256:f59d71442f9ece3dffc17bc36575768e1ee9967756e6b6535f0ee1f0054c3d68",
+                "sha256:f6d5b23f226a2ba58e14e49aa3b1bfaf814d0199144b95d78458212444de1387"
             ],
-            "version": "==5.0.0"
+            "version": "==5.1.1"
         },
         "pkginfo": {
             "hashes": [
@@ -307,11 +246,11 @@
         },
         "pre-commit": {
             "hashes": [
-                "sha256:98ec318db1f255e3d5089ae416959ef3c775215a3509620027d446eeabbba740",
-                "sha256:b68f9219c56b50ebafb57f378c5325f9876d06fb29e9cd05daf5cbd6676ce8f2"
+                "sha256:33bb9bf599c334d458fa9e311bde54e0c306a651473b6a36fdb36a61c8605c89",
+                "sha256:e233f5cf3230ae9ed9ada132e9cf6890e18cc937adc669353fb64394f6e80c17"
             ],
             "index": "pypi",
-            "version": "==1.11.2"
+            "version": "==1.13.0"
         },
         "py": {
             "hashes": [
@@ -322,38 +261,32 @@
         },
         "pycodestyle": {
             "hashes": [
-                "sha256:682256a5b318149ca0d2a9185d365d8864a768a28db66a84a2ea946bcc426766",
-                "sha256:6c4245ade1edfad79c3446fadfc96b0de2759662dc29d07d80a6f27ad1ca6ba9"
-            ],
-            "version": "==2.3.1"
-        },
-        "pycparser": {
-            "hashes": [
-                "sha256:a988718abfad80b6b157acce7bf130a30876d27603738ac39f140993246b25b3"
+                "sha256:cbc619d09254895b0d12c2c691e237b2e91e9b2ecf5e84c26b35400f93dcfb83",
+                "sha256:cbfca99bd594a10f674d0cd97a3d802a1fdef635d4361e1a2658de47ed261e3a"
             ],
-            "version": "==2.19"
+            "version": "==2.4.0"
         },
         "pyflakes": {
             "hashes": [
-                "sha256:08bd6a50edf8cffa9fa09a463063c425ecaaf10d1eb0335a7e8b1401aef89e6f",
-                "sha256:8d616a382f243dbf19b54743f280b80198be0bca3a5396f1d2e1fca6223e8805"
+                "sha256:9a7662ec724d0120012f6e29d6248ae3727d821bba522a0e6b356eff19126a49",
+                "sha256:f661252913bc1dbe7fcfcbf0af0db3f42ab65aabd1a6ca68fe5d466bace94dae"
             ],
-            "version": "==1.6.0"
+            "version": "==2.0.0"
         },
         "pygments": {
             "hashes": [
-                "sha256:78f3f434bcc5d6ee09020f92ba487f95ba50f1e3ef83ae96b9d5ffa1bab25c5d",
-                "sha256:dbae1046def0efb574852fab9e90209b23f556367b5a320c0bcb871c77c3e8cc"
+                "sha256:5ffada19f6203563680669ee7f53b64dabbeb100eb51b61996085e99c03b284a",
+                "sha256:e8218dd399a61674745138520d0d4cf2621d7e032439341bc3f647bff125818d"
             ],
-            "version": "==2.2.0"
+            "version": "==2.3.1"
         },
         "pytest": {
             "hashes": [
-                "sha256:10e59f84267370ab20cec9305bafe7505ba4d6b93ecbf66a1cce86193ed511d5",
-                "sha256:8c827e7d4816dfe13e9329c8226aef8e6e75d65b939bc74fda894143b6d1df59"
+                "sha256:f689bf2fc18c4585403348dd56f47d87780bf217c53ed9ae7a3e2d7faa45f8e9",
+                "sha256:f812ea39a0153566be53d88f8de94839db1e8a05352ed8a49525d7d7f37861e9"
             ],
             "index": "pypi",
-            "version": "==3.9.1"
+            "version": "==4.0.2"
         },
         "pytest-cov": {
             "hashes": [
@@ -389,17 +322,17 @@
         },
         "readme-renderer": {
             "hashes": [
-                "sha256:237ca8705ffea849870de41101dba41543561da05c0ae45b2f1c547efa9843d2",
-                "sha256:f75049a3a7afa57165551e030dd8f9882ebf688b9600535a3f7e23596651875d"
+                "sha256:bb16f55b259f27f75f640acf5e00cf897845a8b3e4731b5c1a436e4b8529202f",
+                "sha256:c8532b79afc0375a85f10433eca157d6b50f7d6990f337fa498c96cd4bfc203d"
             ],
-            "version": "==22.0"
+            "version": "==24.0"
         },
         "requests": {
             "hashes": [
-                "sha256:99dcfdaaeb17caf6e526f32b6a7b780461512ab3f1d992187801694cba42770c",
-                "sha256:a84b8c9ab6239b578f22d1c21d51b696dcfe004032bb80ea832398d6909d7279"
+                "sha256:502a824f31acdacb3a35b6690b5fbf0bc41d63a24a45c4004352b0242707598e",
+                "sha256:7bf2a778576d825600030a110f3c0e3e8edc51dfaafe1c146e39a2027784957b"
             ],
-            "version": "==2.20.0"
+            "version": "==2.21.0"
         },
         "requests-toolbelt": {
             "hashes": [
@@ -427,10 +360,10 @@
         },
         "six": {
             "hashes": [
-                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9",
-                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb"
+                "sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c",
+                "sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
             ],
-            "version": "==1.11.0"
+            "version": "==1.12.0"
         },
         "toml": {
             "hashes": [
@@ -441,10 +374,10 @@
         },
         "tqdm": {
             "hashes": [
-                "sha256:a0be569511161220ff709a5b60d0890d47921f746f1c737a11d965e1b29e7b2e",
-                "sha256:e293e6d7a7f41a529a27f8d6624ab11544ccbfe82a205af6fad102545099fc21"
+                "sha256:3c4d4a5a41ef162dd61f1edb86b0e1c7859054ab656b2e7c7b77e7fbf6d9f392",
+                "sha256:5b4d5549984503050883bc126280b386f5f4ca87e6c023c5d015655ad75bdebb"
             ],
-            "version": "==4.27.0"
+            "version": "==4.28.1"
         },
         "twine": {
             "hashes": [
@@ -456,17 +389,17 @@
         },
         "urllib3": {
             "hashes": [
-                "sha256:41c3db2fc01e5b907288010dec72f9d0a74e37d6994e6eb56849f59fea2265ae",
-                "sha256:8819bba37a02d143296a4d032373c4dd4aca11f6d4c9973335ca75f9c8475f59"
+                "sha256:61bf29cada3fc2fbefad4fdf059ea4bd1b4a86d2b6d15e1c7c0b582b9752fe39",
+                "sha256:de9529817c93f27c8ccbfead6985011db27bd0ddfcdb2d86f3f663385c6a9c22"
             ],
-            "version": "==1.24"
+            "version": "==1.24.1"
         },
         "virtualenv": {
             "hashes": [
-                "sha256:2ce32cd126117ce2c539f0134eb89de91a8413a29baac49cbab3eb50e2026669",
-                "sha256:ca07b4c0b54e14a91af9f34d0919790b016923d157afda5efdde55c96718f752"
+                "sha256:34b9ae3742abed2f95d3970acf4d80533261d6061b51160b197f84e5b4c98b4c",
+                "sha256:fa736831a7b18bd2bfeef746beb622a92509e9733d645952da136b0639cd40cd"
             ],
-            "version": "==16.0.0"
+            "version": "==16.2.0"
         },
         "webencodings": {
             "hashes": [
@@ -474,6 +407,13 @@
                 "sha256:b36a1c245f2d304965eb4e0a82848379241dc04b865afcc4aab16748587e1923"
             ],
             "version": "==0.5.1"
+        },
+        "zipp": {
+            "hashes": [
+                "sha256:55ca87266c38af6658b84db8cfb7343cdb0bf275f93c7afaea0d8e7a209c7478",
+                "sha256:682b3e1c62b7026afe24eadf6be579fb45fec54c07ea218bded8092af07a68c4"
+            ],
+            "version": "==0.3.3"
         }
     }
 }

pytube/cipher.py

@@ -28,14 +28,18 @@ logger = logging.getLogger(__name__)
 
 
 def get_initial_function_name(js):
-    """Extract the name of the function responsible for computing the signature.
+    """Extract the name of the function responsible for computing the
+    signature.
 
     :param str js:
         The contents of the base.js asset file.
 
     """
     # c&&d.set("signature", EE(c));
-    pattern = r'\bc\s*&&\s*d\.set\([^,]+\s*,\s*\([^)]*\)\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\('
+    pattern = (
+        r'\bc\s*&&\s*d\.set\([^,]+\s*,'
+        r'\s*\([^)]*\)\s*\(\s*(?P<sig>[a-zA-Z0-9$]+)\('
+    )
     logger.debug('finding initial function name')
     return regex_search(pattern, js, group=1)