import pygal

3 files changed, 190 insertions, 148 deletions

diff --git a/python/Pipfile b/python/Pipfile
index 07cd1b5b..0de97b25 100644
--- a/python/Pipfile
+++ b/python/Pipfile
@@ -1,4 +1,3 @@
-
 # This file is *not* used as part of bundling or distributing the python client
 # library (fatcat_client). It *is* shared by the web interface (flask app),
 # workers, and import scripts.
@@ -19,7 +18,7 @@ pylint = "*"
 pg-view = "*"
 
 [packages]
-fatcat_client = { path = "./../python_client" }
+fatcat_client = {path = "./../python_client"}
 python-dotenv = "*"
 Flask = ">=1"
 flask-uuid = "*"
@@ -29,9 +28,9 @@ flask-wtf = "*"
 Flask-Misaka = "*"
 flask-mwoauth = "*"
 WTForms = "*"
-loginpass = { git = 'https://github.com/authlib/loginpass.git', ref = 'ed9e527502bd19be6793f88ed71ca0e1764e9034' }
+loginpass = {ref = 'ed9e527502bd19be6793f88ed71ca0e1764e9034',git = 'https://github.com/authlib/loginpass.git'}
 requests = ">=2"
-raven = { extras = ['flask'], version = "*" }
+raven = {extras = ['flask'],version = "*"}
 pykafka = ">=2"
 python-dateutil = "*"
 sickle = "*"
@@ -43,6 +42,7 @@ citeproc-py-styles = "*"
 bs4 = "*"
 python-magic = "*"
 pylatexenc = "*"
+pygal = "*"
 
 [requires]
 # Python 3.5 is the bundled (system) version of python for Ubuntu 16.04
diff --git a/python/Pipfile.lock b/python/Pipfile.lock
index d55728ad..94a83fb6 100644
--- a/python/Pipfile.lock
+++ b/python/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "616e621be76364c6c5cc4c7734cc0bb9c7c4f4014be590e58596dbd78c5d685e"
+            "sha256": "dd219787aa7a52cc030aab7b256663b538e61c7420fe06fb73c7d0b3173eae6e"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -18,11 +18,11 @@
     "default": {
         "beautifulsoup4": {
             "hashes": [
-                "sha256:034740f6cb549b4e932ae1ab975581e6103ac8f942200a0e9759065984391858",
-                "sha256:945065979fb8529dd2f37dbb58f00b661bdbcbebf954f93b32fdf5263ef35348",
-                "sha256:ba6d5c59906a85ac23dadfe5c88deaf3e179ef565f4898671253e50a78680718"
+                "sha256:05668158c7b85b791c5abde53e50265e16f98ad601c402ba44d70f96c4159612",
+                "sha256:25288c9e176f354bf277c0a10aa96c782a6a18a17122dba2e8cec4a97e03343b",
+                "sha256:f040590be10520f2ea4c2ae8c3dae441c7cfff5308ec9d58a0ec0c1b8f81d469"
             ],
-            "version": "==4.7.1"
+            "version": "==4.8.0"
         },
         "blinker": {
             "hashes": [
@@ -112,11 +112,11 @@
         },
         "flask": {
             "hashes": [
-                "sha256:ad7c6d841e64296b962296c2c2dabc6543752985727af86a975072dea984b6f3",
-                "sha256:e7d32475d1de5facaa55e3958bc4ec66d3762076b074296aa50ef8fdc5b9df61"
+                "sha256:13f9f196f330c7c2c5d7a5cf91af894110ca0215ac051b5844701f2bfd934d52",
+                "sha256:45eb5a6fd193d6cf7e0cf5d8a5b31f83d5faae0293695626f539a823e93b13f6"
             ],
             "index": "pypi",
-            "version": "==1.0.3"
+            "version": "==1.1.1"
         },
         "flask-debugtoolbar": {
             "hashes": [
@@ -143,10 +143,10 @@
         },
         "flask-mwoauth": {
             "hashes": [
-                "sha256:9ac2c802a2943798b8e72c13362adf1918f060f3deed3efd2c155e1ad680fccd"
+                "sha256:6df2e2448ea9251c61d4142da1aa2cd529e9ce22b440b577b1197912a8969be9"
             ],
             "index": "pypi",
-            "version": "==0.3.70"
+            "version": "==0.4.75"
         },
         "flask-uuid": {
             "hashes": [
@@ -165,11 +165,10 @@
         },
         "ftfy": {
             "hashes": [
-                "sha256:84a1614190173bb447ac9d581e50185c6aa35b538754b6bedaba0cc0f83d8e80",
-                "sha256:fa74757fb7cb444366fa6a79c2feabd40281a44dfbf6eaed492a804764ee26b2"
+                "sha256:6d7509c45e602dec890f0f6ee0623a8b5f50ec1188ac7ab9535e18e572c99bcc"
             ],
             "index": "pypi",
-            "version": "==5.5.1"
+            "version": "==5.6"
         },
         "future": {
             "hashes": [
@@ -211,32 +210,30 @@
         },
         "lxml": {
             "hashes": [
-                "sha256:06c7616601430aa140a69f97e3116308fffe0848f543b639a5ec2e8920ae72fd",
-                "sha256:177202792f9842374a8077735c69c41a4282183f7851443d2beb8ee310720819",
-                "sha256:19317ad721ceb9e39847d11131903931e2794e447d4751ebb0d9236f1b349ff2",
-                "sha256:36d206e62f3e5dbaafd4ec692b67157e271f5da7fd925fda8515da675eace50d",
-                "sha256:387115b066c797c85f9861a9613abf50046a15aac16759bc92d04f94acfad082",
-                "sha256:3ce1c49d4b4a7bc75fb12acb3a6247bb7a91fe420542e6d671ba9187d12a12c2",
-                "sha256:4d2a5a7d6b0dbb8c37dab66a8ce09a8761409c044017721c21718659fa3365a1",
-                "sha256:58d0a1b33364d1253a88d18df6c0b2676a1746d27c969dc9e32d143a3701dda5",
-                "sha256:62a651c618b846b88fdcae0533ec23f185bb322d6c1845733f3123e8980c1d1b",
-                "sha256:69ff21064e7debc9b1b1e2eee8c2d686d042d4257186d70b338206a80c5bc5ea",
-                "sha256:7060453eba9ba59d821625c6af6a266bd68277dce6577f754d1eb9116c094266",
-                "sha256:7d26b36a9c4bce53b9cfe42e67849ae3c5c23558bc08363e53ffd6d94f4ff4d2",
-                "sha256:83b427ad2bfa0b9705e02a83d8d607d2c2f01889eb138168e462a3a052c42368",
-                "sha256:923d03c84534078386cf50193057aae98fa94cace8ea7580b74754493fda73ad",
-                "sha256:b773715609649a1a180025213f67ffdeb5a4878c784293ada300ee95a1f3257b",
-                "sha256:baff149c174e9108d4a2fee192c496711be85534eab63adb122f93e70aa35431",
-                "sha256:bca9d118b1014b4c2d19319b10a3ebed508ff649396ce1855e1c96528d9b2fa9",
-                "sha256:ce580c28845581535dc6000fc7c35fdadf8bea7ccb57d6321b044508e9ba0685",
-                "sha256:d34923a569e70224d88e6682490e24c842907ba2c948c5fd26185413cbe0cd96",
-                "sha256:dd9f0e531a049d8b35ec5e6c68a37f1ba6ec3a591415e6804cbdf652793d15d7",
-                "sha256:ecb805cbfe9102f3fd3d2ef16dfe5ae9e2d7a7dfbba92f4ff1e16ac9784dbfb0",
-                "sha256:ede9aad2197a0202caff35d417b671f5f91a3631477441076082a17c94edd846",
-                "sha256:ef2d1fc370400e0aa755aab0b20cf4f1d0e934e7fd5244f3dd4869078e4942b9",
-                "sha256:f2fec194a49bfaef42a548ee657362af5c7a640da757f6f452a35da7dd9f923c"
-            ],
-            "version": "==4.3.4"
+                "sha256:02ca7bf899da57084041bb0f6095333e4d239948ad3169443f454add9f4e9cb4",
+                "sha256:096b82c5e0ea27ce9138bcbb205313343ee66a6e132f25c5ed67e2c8d960a1bc",
+                "sha256:0a920ff98cf1aac310470c644bc23b326402d3ef667ddafecb024e1713d485f1",
+                "sha256:17cae1730a782858a6e2758fd20dd0ef7567916c47757b694a06ffafdec20046",
+                "sha256:17e3950add54c882e032527795c625929613adbd2ce5162b94667334458b5a36",
+                "sha256:1f4f214337f6ee5825bf90a65d04d70aab05526c08191ab888cb5149501923c5",
+                "sha256:2e8f77db25b0a96af679e64ff9bf9dddb27d379c9900c3272f3041c4d1327c9d",
+                "sha256:4dffd405390a45ecb95ab5ab1c1b847553c18b0ef8ed01e10c1c8b1a76452916",
+                "sha256:6b899931a5648862c7b88c795eddff7588fb585e81cecce20f8d9da16eff96e0",
+                "sha256:726c17f3e0d7a7200718c9a890ccfeab391c9133e363a577a44717c85c71db27",
+                "sha256:760c12276fee05c36f95f8040180abc7fbebb9e5011447a97cdc289b5d6ab6fc",
+                "sha256:796685d3969815a633827c818863ee199440696b0961e200b011d79b9394bbe7",
+                "sha256:891fe897b49abb7db470c55664b198b1095e4943b9f82b7dcab317a19116cd38",
+                "sha256:a471628e20f03dcdfde00770eeaf9c77811f0c331c8805219ca7b87ac17576c5",
+                "sha256:a63b4fd3e2cabdcc9d918ed280bdde3e8e9641e04f3c59a2a3109644a07b9832",
+                "sha256:b0b84408d4eabc6de9dd1e1e0bc63e7731e890c0b378a62443e5741cfd0ae90a",
+                "sha256:be78485e5d5f3684e875dab60f40cddace2f5b2a8f7fede412358ab3214c3a6f",
+                "sha256:c27eaed872185f047bb7f7da2d21a7d8913457678c9a100a50db6da890bc28b9",
+                "sha256:c81cb40bff373ab7a7446d6bbca0190bccc5be3448b47b51d729e37799bb5692",
+                "sha256:d11874b3c33ee441059464711cd365b89fa1a9cf19ae75b0c189b01fbf735b84",
+                "sha256:e9c028b5897901361d81a4718d1db217b716424a0283afe9d6735fe0caf70f79",
+                "sha256:fe489d486cd00b739be826e8c1be188ddb74c7a1ca784d93d06fda882a6a1681"
+            ],
+            "version": "==4.4.1"
         },
         "markupsafe": {
             "hashes": [
@@ -279,17 +276,17 @@
         },
         "mwoauth": {
             "hashes": [
-                "sha256:8a57a315732733240e9522d3c4e370cbdf2c045d00fe0dab433d6119fa09038f",
-                "sha256:ae0d094bd8817b690af5e8c52a113ae229e689fca59303aae0f0fdfb0ca911d1"
+                "sha256:65014797ce4c80d330fb630c1d04177bb073cd4f4cf30e005b8cbe345c2b9876",
+                "sha256:c7e4c56561a280e14ca4cc20b79ba4a9dd4ec752ff4c797cf29dad4460fb7832"
             ],
-            "version": "==0.3.3"
+            "version": "==0.3.5"
         },
         "oauthlib": {
             "hashes": [
-                "sha256:0ce32c5d989a1827e3f1148f98b9085ed2370fc939bf524c9c851d8714797298",
-                "sha256:3e1e14f6cde7e5475128d30e97edc3bfb4dc857cb884d8714ec161fdbb3b358e"
+                "sha256:bee41cc35fcca6e988463cacc3bcb8a96224f470ca547e697b604cc697b2f889",
+                "sha256:df884cd6cbe20e32633f1db1072e9356f53638e4361bef4e8b03c9127c9328ea"
             ],
-            "version": "==3.0.1"
+            "version": "==3.1.0"
         },
         "pycparser": {
             "hashes": [
@@ -297,6 +294,14 @@
             ],
             "version": "==2.19"
         },
+        "pygal": {
+            "hashes": [
+                "sha256:27abab93cbc31e21f3c6bdecc05bda6cd3570cbdbd8297b7caa6904051b50d72",
+                "sha256:9204f05380b02a8a32f9bf99d310b51aa2a932cba5b369f7a4dc3705f0a4ce83"
+            ],
+            "index": "pypi",
+            "version": "==2.4.0"
+        },
         "pyjwt": {
             "hashes": [
                 "sha256:5c6eca3c2940464d106b99ba83b00c6add741c9becaec087fb7ccdefea71350e",
@@ -313,10 +318,10 @@
         },
         "pylatexenc": {
             "hashes": [
-                "sha256:ef2d5260c38e2cb4d2829e8b918914a558557820d4f57cb6588a81e827de2bb3"
+                "sha256:68f6de3921c54d09edb23f2e7625f047d3645cf4f341cc89153e466918411e99"
             ],
             "index": "pypi",
-            "version": "==1.5"
+            "version": "==2.1"
         },
         "pymacaroons": {
             "hashes": [
@@ -425,10 +430,10 @@
         },
         "soupsieve": {
             "hashes": [
-                "sha256:6898e82ecb03772a0d82bd0d0a10c0d6dcc342f77e0701d0ec4a8271be465ece",
-                "sha256:b20eff5e564529711544066d7dc0f7661df41232ae263619dede5059799cdfca"
+                "sha256:8662843366b8d8779dec4e2f921bebec9afd856a5ff2e82cd419acc5054a1a92",
+                "sha256:a5a6166b4767725fd52ae55fee8c8b6137d9a51e9f1edea461a062a759160118"
             ],
-            "version": "==1.9.1"
+            "version": "==1.9.3"
         },
         "tabulate": {
             "hashes": [
@@ -452,10 +457,10 @@
         },
         "werkzeug": {
             "hashes": [
-                "sha256:865856ebb55c4dcd0630cdd8f3331a1847a819dda7e8c750d3db6f2aa6c0209c",
-                "sha256:a0b915f0815982fb2a09161cb8f31708052d0951c3ba433ccc5e1aa276507ca6"
+                "sha256:87ae4e5b5366da2347eb3116c0e6c681a0e939a33b2805e2c0cbd282664932c4",
+                "sha256:a13b74dd3c45f758d4ebdb224be8f1ab8ef58b3c0ffc1783a8c7d9f4f50227e6"
             ],
-            "version": "==0.15.4"
+            "version": "==0.15.5"
         },
         "wtforms": {
             "hashes": [
@@ -511,39 +516,40 @@
         },
         "coverage": {
             "hashes": [
-                "sha256:3684fabf6b87a369017756b551cef29e505cb155ddb892a7a29277b978da88b9",
-                "sha256:39e088da9b284f1bd17c750ac672103779f7954ce6125fd4382134ac8d152d74",
-                "sha256:3c205bc11cc4fcc57b761c2da73b9b72a59f8d5ca89979afb0c1c6f9e53c7390",
-                "sha256:465ce53a8c0f3a7950dfb836438442f833cf6663d407f37d8c52fe7b6e56d7e8",
-                "sha256:48020e343fc40f72a442c8a1334284620f81295256a6b6ca6d8aa1350c763bbe",
-                "sha256:5296fc86ab612ec12394565c500b412a43b328b3907c0d14358950d06fd83baf",
-                "sha256:5f61bed2f7d9b6a9ab935150a6b23d7f84b8055524e7be7715b6513f3328138e",
-                "sha256:68a43a9f9f83693ce0414d17e019daee7ab3f7113a70c79a3dd4c2f704e4d741",
-                "sha256:6b8033d47fe22506856fe450470ccb1d8ba1ffb8463494a15cfc96392a288c09",
-                "sha256:7ad7536066b28863e5835e8cfeaa794b7fe352d99a8cded9f43d1161be8e9fbd",
-                "sha256:7bacb89ccf4bedb30b277e96e4cc68cd1369ca6841bde7b005191b54d3dd1034",
-                "sha256:839dc7c36501254e14331bcb98b27002aa415e4af7ea039d9009409b9d2d5420",
-                "sha256:8f9a95b66969cdea53ec992ecea5406c5bd99c9221f539bca1e8406b200ae98c",
-                "sha256:932c03d2d565f75961ba1d3cec41ddde00e162c5b46d03f7423edcb807734eab",
-                "sha256:988529edadc49039d205e0aa6ce049c5ccda4acb2d6c3c5c550c17e8c02c05ba",
-                "sha256:998d7e73548fe395eeb294495a04d38942edb66d1fa61eb70418871bc621227e",
-                "sha256:9de60893fb447d1e797f6bf08fdf0dbcda0c1e34c1b06c92bd3a363c0ea8c609",
-                "sha256:9e80d45d0c7fcee54e22771db7f1b0b126fb4a6c0a2e5afa72f66827207ff2f2",
-                "sha256:a545a3dfe5082dc8e8c3eb7f8a2cf4f2870902ff1860bd99b6198cfd1f9d1f49",
-                "sha256:a5d8f29e5ec661143621a8f4de51adfb300d7a476224156a39a392254f70687b",
-                "sha256:aca06bfba4759bbdb09bf52ebb15ae20268ee1f6747417837926fae990ebc41d",
-                "sha256:bb23b7a6fd666e551a3094ab896a57809e010059540ad20acbeec03a154224ce",
-                "sha256:bfd1d0ae7e292105f29d7deaa9d8f2916ed8553ab9d5f39ec65bcf5deadff3f9",
-                "sha256:c62ca0a38958f541a73cf86acdab020c2091631c137bd359c4f5bddde7b75fd4",
-                "sha256:c709d8bda72cf4cd348ccec2a4881f2c5848fd72903c185f363d361b2737f773",
-                "sha256:c968a6aa7e0b56ecbd28531ddf439c2ec103610d3e2bf3b75b813304f8cb7723",
-                "sha256:df785d8cb80539d0b55fd47183264b7002077859028dfe3070cf6359bf8b2d9c",
-                "sha256:f406628ca51e0ae90ae76ea8398677a921b36f0bd71aab2099dfed08abd0322f",
-                "sha256:f46087bbd95ebae244a0eda01a618aff11ec7a069b15a3ef8f6b520db523dcf1",
-                "sha256:f8019c5279eb32360ca03e9fac40a12667715546eed5c5eb59eb381f2f501260",
-                "sha256:fc5f4d209733750afd2714e9109816a29500718b32dd9a5db01c0cb3a019b96a"
-            ],
-            "version": "==4.5.3"
+                "sha256:08907593569fe59baca0bf152c43f3863201efb6113ecb38ce7e97ce339805a6",
+                "sha256:0be0f1ed45fc0c185cfd4ecc19a1d6532d72f86a2bac9de7e24541febad72650",
+                "sha256:141f08ed3c4b1847015e2cd62ec06d35e67a3ac185c26f7635f4406b90afa9c5",
+                "sha256:19e4df788a0581238e9390c85a7a09af39c7b539b29f25c89209e6c3e371270d",
+                "sha256:23cc09ed395b03424d1ae30dcc292615c1372bfba7141eb85e11e50efaa6b351",
+                "sha256:245388cda02af78276b479f299bbf3783ef0a6a6273037d7c60dc73b8d8d7755",
+                "sha256:331cb5115673a20fb131dadd22f5bcaf7677ef758741312bee4937d71a14b2ef",
+                "sha256:386e2e4090f0bc5df274e720105c342263423e77ee8826002dcffe0c9533dbca",
+                "sha256:3a794ce50daee01c74a494919d5ebdc23d58873747fa0e288318728533a3e1ca",
+                "sha256:60851187677b24c6085248f0a0b9b98d49cba7ecc7ec60ba6b9d2e5574ac1ee9",
+                "sha256:63a9a5fc43b58735f65ed63d2cf43508f462dc49857da70b8980ad78d41d52fc",
+                "sha256:6b62544bb68106e3f00b21c8930e83e584fdca005d4fffd29bb39fb3ffa03cb5",
+                "sha256:6ba744056423ef8d450cf627289166da65903885272055fb4b5e113137cfa14f",
+                "sha256:7494b0b0274c5072bddbfd5b4a6c6f18fbbe1ab1d22a41e99cd2d00c8f96ecfe",
+                "sha256:826f32b9547c8091679ff292a82aca9c7b9650f9fda3e2ca6bf2ac905b7ce888",
+                "sha256:93715dffbcd0678057f947f496484e906bf9509f5c1c38fc9ba3922893cda5f5",
+                "sha256:9a334d6c83dfeadae576b4d633a71620d40d1c379129d587faa42ee3e2a85cce",
+                "sha256:af7ed8a8aa6957aac47b4268631fa1df984643f07ef00acd374e456364b373f5",
+                "sha256:bf0a7aed7f5521c7ca67febd57db473af4762b9622254291fbcbb8cd0ba5e33e",
+                "sha256:bf1ef9eb901113a9805287e090452c05547578eaab1b62e4ad456fcc049a9b7e",
+                "sha256:c0afd27bc0e307a1ffc04ca5ec010a290e49e3afbe841c5cafc5c5a80ecd81c9",
+                "sha256:dd579709a87092c6dbee09d1b7cfa81831040705ffa12a1b248935274aee0437",
+                "sha256:df6712284b2e44a065097846488f66840445eb987eb81b3cc6e4149e7b6982e1",
+                "sha256:e07d9f1a23e9e93ab5c62902833bf3e4b1f65502927379148b6622686223125c",
+                "sha256:e2ede7c1d45e65e209d6093b762e98e8318ddeff95317d07a27a2140b80cfd24",
+                "sha256:e4ef9c164eb55123c62411f5936b5c2e521b12356037b6e1c2617cef45523d47",
+                "sha256:eca2b7343524e7ba246cab8ff00cab47a2d6d54ada3b02772e908a45675722e2",
+                "sha256:eee64c616adeff7db37cc37da4180a3a5b6177f5c46b187894e633f088fb5b28",
+                "sha256:ef824cad1f980d27f26166f86856efe11eff9912c4fed97d3804820d43fa550c",
+                "sha256:efc89291bd5a08855829a3c522df16d856455297cf35ae827a37edac45f466a7",
+                "sha256:fa964bae817babece5aa2e8c1af841bebb6d0b9add8e637548809d040443fee0",
+                "sha256:ff37757e068ae606659c28c3bd0d923f9d29a85de79bf25b2b34b148473b5025"
+            ],
+            "version": "==4.5.4"
         },
         "decorator": {
             "hashes": [
@@ -561,18 +567,19 @@
         },
         "importlib-metadata": {
             "hashes": [
-                "sha256:6dfd58dfe281e8d240937776065dd3624ad5469c835248219bd16cf2e12dbeb7",
-                "sha256:cb6ee23b46173539939964df59d3d72c3e0c1b5d54b84f1d8a7e912fe43612db"
+                "sha256:9ff1b1c5a354142de080b8a4e9803e5d0d59283c93aed808617c787d16768375",
+                "sha256:b7143592e374e50584564794fcb8aaf00a23025f9db866627f89a21491847a8d"
             ],
-            "version": "==0.18"
+            "markers": "python_version < '3.8'",
+            "version": "==0.20"
         },
         "ipython": {
             "hashes": [
-                "sha256:54c5a8aa1eadd269ac210b96923688ccf01ebb2d0f21c18c3c717909583579a8",
-                "sha256:e840810029224b56cd0d9e7719dc3b39cf84d577f8ac686547c8ba7a06eeab26"
+                "sha256:c4ab005921641e40a68e405e286e7a1fcc464497e14d81b6914b4fd95e5dee9b",
+                "sha256:dd76831f065f17bddd7eaa5c781f5ea32de5ef217592cf019e34043b56895aa1"
             ],
             "index": "pypi",
-            "version": "==7.5.0"
+            "version": "==7.8.0"
         },
         "ipython-genutils": {
             "hashes": [
@@ -583,40 +590,40 @@
         },
         "isort": {
             "hashes": [
-                "sha256:c40744b6bc5162bbb39c1257fe298b7a393861d50978b565f3ccd9cb9de0182a",
-                "sha256:f57abacd059dc3bd666258d1efb0377510a89777fda3e3274e3c01f7c03ae22d"
+                "sha256:54da7e92468955c4fceacd0c86bd0ec997b0e1ee80d97f67c35a78b719dccab1",
+                "sha256:6e811fcb295968434526407adb8796944f1988c5b65e8139058f2014cbe100fd"
             ],
-            "version": "==4.3.20"
+            "version": "==4.3.21"
         },
         "jedi": {
             "hashes": [
-                "sha256:49ccb782651bb6f7009810d17a3316f8867dde31654c750506970742e18b553d",
-                "sha256:79d0f6595f3846dffcbe667cc6dc821b96e5baa8add125176c31a3917eb19d58"
+                "sha256:786b6c3d80e2f06fd77162a07fed81b8baa22dde5d62896a790a331d6ac21a27",
+                "sha256:ba859c74fa3c966a22f2aeebe1b74ee27e2a462f56d3f5f7ca4a59af61bfe42e"
             ],
-            "version": "==0.14.0"
+            "version": "==0.15.1"
         },
         "lazy-object-proxy": {
             "hashes": [
-                "sha256:159a745e61422217881c4de71f9eafd9d703b93af95618635849fe469a283661",
-                "sha256:23f63c0821cc96a23332e45dfaa83266feff8adc72b9bcaef86c202af765244f",
-                "sha256:3b11be575475db2e8a6e11215f5aa95b9ec14de658628776e10d96fa0b4dac13",
-                "sha256:3f447aff8bc61ca8b42b73304f6a44fa0d915487de144652816f950a3f1ab821",
-                "sha256:4ba73f6089cd9b9478bc0a4fa807b47dbdb8fad1d8f31a0f0a5dbf26a4527a71",
-                "sha256:4f53eadd9932055eac465bd3ca1bd610e4d7141e1278012bd1f28646aebc1d0e",
-                "sha256:64483bd7154580158ea90de5b8e5e6fc29a16a9b4db24f10193f0c1ae3f9d1ea",
-                "sha256:6f72d42b0d04bfee2397aa1862262654b56922c20a9bb66bb76b6f0e5e4f9229",
-                "sha256:7c7f1ec07b227bdc561299fa2328e85000f90179a2f44ea30579d38e037cb3d4",
-                "sha256:7c8b1ba1e15c10b13cad4171cfa77f5bb5ec2580abc5a353907780805ebe158e",
-                "sha256:8559b94b823f85342e10d3d9ca4ba5478168e1ac5658a8a2f18c991ba9c52c20",
-                "sha256:a262c7dfb046f00e12a2bdd1bafaed2408114a89ac414b0af8755c696eb3fc16",
-                "sha256:acce4e3267610c4fdb6632b3886fe3f2f7dd641158a843cf6b6a68e4ce81477b",
-                "sha256:be089bb6b83fac7f29d357b2dc4cf2b8eb8d98fe9d9ff89f9ea6012970a853c7",
-                "sha256:bfab710d859c779f273cc48fb86af38d6e9210f38287df0069a63e40b45a2f5c",
-                "sha256:c10d29019927301d524a22ced72706380de7cfc50f767217485a912b4c8bd82a",
-                "sha256:dd6e2b598849b3d7aee2295ac765a578879830fb8966f70be8cd472e6069932e",
-                "sha256:e408f1eacc0a68fed0c08da45f31d0ebb38079f043328dce69ff133b95c29dc1"
-            ],
-            "version": "==1.4.1"
+                "sha256:02b260c8deb80db09325b99edf62ae344ce9bc64d68b7a634410b8e9a568edbf",
+                "sha256:18f9c401083a4ba6e162355873f906315332ea7035803d0fd8166051e3d402e3",
+                "sha256:1f2c6209a8917c525c1e2b55a716135ca4658a3042b5122d4e3413a4030c26ce",
+                "sha256:2f06d97f0ca0f414f6b707c974aaf8829c2292c1c497642f63824119d770226f",
+                "sha256:616c94f8176808f4018b39f9638080ed86f96b55370b5a9463b2ee5c926f6c5f",
+                "sha256:63b91e30ef47ef68a30f0c3c278fbfe9822319c15f34b7538a829515b84ca2a0",
+                "sha256:77b454f03860b844f758c5d5c6e5f18d27de899a3db367f4af06bec2e6013a8e",
+                "sha256:83fe27ba321e4cfac466178606147d3c0aa18e8087507caec78ed5a966a64905",
+                "sha256:84742532d39f72df959d237912344d8a1764c2d03fe58beba96a87bfa11a76d8",
+                "sha256:874ebf3caaf55a020aeb08acead813baf5a305927a71ce88c9377970fe7ad3c2",
+                "sha256:9f5caf2c7436d44f3cec97c2fa7791f8a675170badbfa86e1992ca1b84c37009",
+                "sha256:a0c8758d01fcdfe7ae8e4b4017b13552efa7f1197dd7358dc9da0576f9d0328a",
+                "sha256:a4def978d9d28cda2d960c279318d46b327632686d82b4917516c36d4c274512",
+                "sha256:ad4f4be843dace866af5fc142509e9b9817ca0c59342fdb176ab6ad552c927f5",
+                "sha256:ae33dd198f772f714420c5ab698ff05ff900150486c648d29951e9c70694338e",
+                "sha256:b4a2b782b8a8c5522ad35c93e04d60e2ba7f7dcb9271ec8e8c3e08239be6c7b4",
+                "sha256:c462eb33f6abca3b34cdedbe84d761f31a60b814e173b98ede3c81bb48967c4f",
+                "sha256:fd135b8d35dfdcdb984828c84d695937e58cc5f49e1c854eb311c4d6aa03f4f1"
+            ],
+            "version": "==1.4.2"
         },
         "mccabe": {
             "hashes": [
@@ -627,33 +634,32 @@
         },
         "more-itertools": {
             "hashes": [
-                "sha256:2112d2ca570bb7c3e53ea1a35cd5df42bb0fd10c45f0fb97178679c3c03d64c7",
-                "sha256:c3e4748ba1aad8dba30a4886b0b1a2004f9a863837b8654e7059eebf727afa5a"
+                "sha256:409cd48d4db7052af495b09dec721011634af3753ae1ef92d2b32f73a745f832",
+                "sha256:92b8c4b06dac4f0611c0729b2f2ede52b2e1bac1ab48f089c7ddc12e26bb60c4"
             ],
-            "markers": "python_version > '2.7'",
-            "version": "==7.0.0"
+            "version": "==7.2.0"
         },
         "packaging": {
             "hashes": [
-                "sha256:0c98a5d0be38ed775798ece1b9727178c4469d9c3b4ada66e8e6b7849f8732af",
-                "sha256:9e1cbf8c12b1f1ce0bb5344b8d7ecf66a6f8a6e91bcb0c84593ed6d3ab5c4ab3"
+                "sha256:a7ac867b97fdc07ee80a8058fe4435ccd274ecc3b0ed61d852d7d53055528cf9",
+                "sha256:c491ca87294da7cc01902edbe30a5bc6c4c28172b5138ab4e4aa1b9d7bfaeafe"
             ],
-            "version": "==19.0"
+            "version": "==19.1"
         },
         "parso": {
             "hashes": [
-                "sha256:5052bb33be034cba784193e74b1cde6ebf29ae8b8c1e4ad94df0c4209bfc4826",
-                "sha256:db5881df1643bf3e66c097bfd8935cf03eae73f4cb61ae4433c9ea4fb6613446"
+                "sha256:63854233e1fadb5da97f2744b6b24346d2750b85965e7e399bec1620232797dc",
+                "sha256:666b0ee4a7a1220f65d367617f2cd3ffddff3e205f3f16a0284df30e774c2a9c"
             ],
-            "version": "==0.5.0"
+            "version": "==0.5.1"
         },
         "pathlib2": {
             "hashes": [
-                "sha256:25199318e8cc3c25dcb45cbe084cc061051336d5a9ea2a12448d3d8cb748f742",
-                "sha256:5887121d7f7df3603bca2f710e7219f3eca0eb69e0b7cc6e0a022e155ac931a7"
+                "sha256:2156525d6576d21c4dcaddfa427fae887ef89a7a9de5cbfe0728b3aafa78427e",
+                "sha256:446014523bb9be5c28128c4d2a10ad6bb60769e78bd85658fe44a450674e0ef8"
             ],
             "markers": "python_version < '3.6'",
-            "version": "==2.3.3"
+            "version": "==2.3.4"
         },
         "pexpect": {
             "hashes": [
@@ -739,18 +745,18 @@
         },
         "pyparsing": {
             "hashes": [
-                "sha256:1873c03321fc118f4e9746baf201ff990ceb915f433f23b395f5580d1840cb2a",
-                "sha256:9b6323ef4ab914af344ba97510e966d64ba91055d6b9afa6b30799340e89cc03"
+                "sha256:6f98a7b9397e206d78cc01df10131398f1c8b8510a2f4d97d9abd82e1aacdd80",
+                "sha256:d9338df12903bbf5d65a0e4e87c2161968b10d2e489652bb47001d82a9b028b4"
             ],
-            "version": "==2.4.0"
+            "version": "==2.4.2"
         },
         "pytest": {
             "hashes": [
-                "sha256:4a784f1d4f2ef198fe9b7aef793e9fa1a3b2f84e822d9b3a64a181293a572d45",
-                "sha256:926855726d8ae8371803f7b2e6ec0a69953d9c6311fa7c3b6c1b929ff92d27da"
+                "sha256:95d13143cc14174ca1a01ec68e84d76ba5d9d493ac02716fd9706c949a505210",
+                "sha256:b78fe2881323bd44fd9bd76e5317173d4316577e7b1cddebae9136a4495ec865"
             ],
             "index": "pypi",
-            "version": "==4.6.3"
+            "version": "==5.1.2"
         },
         "pytest-cov": {
             "hashes": [
@@ -762,12 +768,12 @@
         },
         "pytest-pylint": {
             "hashes": [
-                "sha256:0dcb6cd429281f7493994e65324937bb295ef28f7632c046b45828380f4fe88a",
-                "sha256:45d2209b65989c8981289c8e75d0fde8c55e87cef27e97facb49f14773a8d3fb",
-                "sha256:7bfbb66fc6dc160193a9e813a7c55e5ae32028f18660deeb90e1cb7e980cbbac"
+                "sha256:8c38ea779e540e27ec4378b0820d906006e09f4ac834defbd886abbf57c7d2ec",
+                "sha256:a4f5e5007f88c2095dcac799e9f7eed3d7e7a2e657596e26093814980ff5fa20",
+                "sha256:a574c246535308f8f6ceac10fa82f8fffffa837071f7985b22515895185700c1"
             ],
             "index": "pypi",
-            "version": "==0.14.0"
+            "version": "==0.14.1"
         },
         "pytest-pythonpath": {
             "hashes": [
@@ -849,10 +855,10 @@
         },
         "zipp": {
             "hashes": [
-                "sha256:8c1019c6aad13642199fbe458275ad6a84907634cc9f0989877ccc4a2840139d",
-                "sha256:ca943a7e809cc12257001ccfb99e3563da9af99d52f261725e96dfe0f9275bc3"
+                "sha256:3718b1cbcd963c7d4c5511a8240812904164b7f381b647143a89d3b98f9bcd8e",
+                "sha256:f06903e9f1f43b12d371004b4ac7b06ab39a44adc747266928ae6debfa7b3335"
             ],
-            "version": "==0.5.1"
+            "version": "==0.6.0"
         }
     }
 }
diff --git a/python/fatcat_web/graphics.py b/python/fatcat_web/graphics.py
new file mode 100644
index 00000000..0e4b7c9d
--- /dev/null
+++ b/python/fatcat_web/graphics.py
@@ -0,0 +1,36 @@
+
+import pygal
+from pygal.style import CleanStyle
+
+def ia_coverage_histogram(rows):
+    """
+    Note: this returns a raw pygal chart; it does not render it to SVG/PNG
+    """
+
+    raw_years = [int(r[0]) for r in rows]
+    years = dict()
+    for y in range(min(raw_years), max(raw_years)+1):
+        years[int(y)] = dict(year=int(y), available=0, missing=0)
+    for r in rows:
+        if r[1]:
+            years[int(r[0])]['available'] = r[2]
+        else:
+            years[int(r[0])]['missing'] = r[2]
+
+    years = sorted(years.values(), key=lambda x: x['year'])
+
+    CleanStyle.colors = ("green", "purple")
+    label_count = len(years)
+    if len(years) > 20:
+        label_count = 10
+    chart = pygal.StackedBar(dynamic_print_values=True, style=CleanStyle,
+        width=1000, height=500, x_labels_major_count=label_count,
+        show_minor_x_labels=False)
+    #chart.title = "Perpetual Access Coverage"
+    chart.x_title = "Year"
+    #chart.y_title = "Releases"
+    chart.x_labels = [str(y['year']) for y in years]
+    chart.add('Available', [y['available'] for y in years])
+    chart.add('Missing', [y['missing'] for y in years])
+    return chart
+