2 files changed, 64 insertions, 109 deletions
diff --git a/python/Pipfile b/python/Pipfile
index 87773d5a..fd9e9b6f 100644
--- a/python/Pipfile
+++ b/python/Pipfile
@@ -59,7 +59,8 @@ toml = ">=0.10"
 fuzzycat = "==0.1.9"
 
 [requires]
-# We install Python 3.7 using a PPA (deadsnakes) on Internet Archive cluster
-# machines, which as of Spring 2020 are still running Ubuntu Xenial (16.04),
-# which has a system default of Python 3.5.
-python_version = "3.7"
+# As of Fall 2020, Internet Archive cluster VMs are split between Ubuntu Xenial
+# (16.04) and Focal (20.04). Default python version for xenial is 3.5, but we
+# backport python 3.7 and 3.8 using a PPA (deadsnakes). Default on Focal is
+# python 3.8, which we hope to stick with for at least a couple years.
+python_version = "3.8"
diff --git a/python/Pipfile.lock b/python/Pipfile.lock
index e8055315..3687deb4 100644
--- a/python/Pipfile.lock
+++ b/python/Pipfile.lock
@@ -1,11 +1,11 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "82800043a15f6106bed981f3c030576cdfc286b7952102e7d625a750e30f4aff"
+            "sha256": "006a028f743603065792eef33f6a7ba64070ca66346db1895ed3f0249d81535f"
         },
         "pipfile-spec": 6,
         "requires": {
-            "python_version": "3.7"
+            "python_version": "3.8"
         },
         "sources": [
             {
@@ -300,7 +300,7 @@
             "hashes": [
                 "sha256:b1bead90b70cf6ec3f0710ae53a525360fa360d306a86583adc6bf83a4db537d"
             ],
-            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2'",
             "version": "==0.18.2"
         },
         "fuzzy": {
@@ -692,7 +692,7 @@
                 "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
                 "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2'",
             "version": "==1.15.0"
         },
         "soupsieve": {
@@ -735,10 +735,10 @@
         },
         "unidecode": {
             "hashes": [
-                "sha256:1d7a042116536098d05d599ef2b8616759f02985c85b4fef50c78a5aaf10822a",
-                "sha256:2b6aab710c2a1647e928e36d69c21e76b453cd455f4e2621000e54b2a9b8cce8"
+                "sha256:4c9d15d2f73eb0d2649a151c566901f80a030da1ccb0a2043352e1dbf647586b",
+                "sha256:a039f89014245e0cad8858976293e23501accc9ff5a7bdbc739a14a2b7b85cdc"
             ],
-            "version": "==1.1.1"
+            "version": "==1.1.2"
         },
         "urllib3": {
             "hashes": [
@@ -813,43 +813,58 @@
         },
         "coverage": {
             "hashes": [
-                "sha256:0203acd33d2298e19b57451ebb0bed0ab0c602e5cf5a818591b4918b1f97d516",
-                "sha256:0f313707cdecd5cd3e217fc68c78a960b616604b559e9ea60cc16795c4304259",
-                "sha256:1c6703094c81fa55b816f5ae542c6ffc625fec769f22b053adb42ad712d086c9",
-                "sha256:1d44bb3a652fed01f1f2c10d5477956116e9b391320c94d36c6bf13b088a1097",
-                "sha256:280baa8ec489c4f542f8940f9c4c2181f0306a8ee1a54eceba071a449fb870a0",
-                "sha256:29a6272fec10623fcbe158fdf9abc7a5fa032048ac1d8631f14b50fbfc10d17f",
-                "sha256:2b31f46bf7b31e6aa690d4c7a3d51bb262438c6dcb0d528adde446531d0d3bb7",
-                "sha256:2d43af2be93ffbad25dd959899b5b809618a496926146ce98ee0b23683f8c51c",
-                "sha256:381ead10b9b9af5f64646cd27107fb27b614ee7040bb1226f9c07ba96625cbb5",
-                "sha256:47a11bdbd8ada9b7ee628596f9d97fbd3851bd9999d398e9436bd67376dbece7",
-                "sha256:4d6a42744139a7fa5b46a264874a781e8694bb32f1d76d8137b68138686f1729",
-                "sha256:50691e744714856f03a86df3e2bff847c2acede4c191f9a1da38f088df342978",
-                "sha256:530cc8aaf11cc2ac7430f3614b04645662ef20c348dce4167c22d99bec3480e9",
-                "sha256:582ddfbe712025448206a5bc45855d16c2e491c2dd102ee9a2841418ac1c629f",
-                "sha256:63808c30b41f3bbf65e29f7280bf793c79f54fb807057de7e5238ffc7cc4d7b9",
-                "sha256:71b69bd716698fa62cd97137d6f2fdf49f534decb23a2c6fc80813e8b7be6822",
-                "sha256:7858847f2d84bf6e64c7f66498e851c54de8ea06a6f96a32a1d192d846734418",
-                "sha256:78e93cc3571fd928a39c0b26767c986188a4118edc67bc0695bc7a284da22e82",
-                "sha256:7f43286f13d91a34fadf61ae252a51a130223c52bfefb50310d5b2deb062cf0f",
-                "sha256:86e9f8cd4b0cdd57b4ae71a9c186717daa4c5a99f3238a8723f416256e0b064d",
-                "sha256:8f264ba2701b8c9f815b272ad568d555ef98dfe1576802ab3149c3629a9f2221",
-                "sha256:9342dd70a1e151684727c9c91ea003b2fb33523bf19385d4554f7897ca0141d4",
-                "sha256:9361de40701666b034c59ad9e317bae95c973b9ff92513dd0eced11c6adf2e21",
-                "sha256:9669179786254a2e7e57f0ecf224e978471491d660aaca833f845b72a2df3709",
-                "sha256:aac1ba0a253e17889550ddb1b60a2063f7474155465577caa2a3b131224cfd54",
-                "sha256:aef72eae10b5e3116bac6957de1df4d75909fc76d1499a53fb6387434b6bcd8d",
-                "sha256:bd3166bb3b111e76a4f8e2980fa1addf2920a4ca9b2b8ca36a3bc3dedc618270",
-                "sha256:c1b78fb9700fc961f53386ad2fd86d87091e06ede5d118b8a50dea285a071c24",
-                "sha256:c3888a051226e676e383de03bf49eb633cd39fc829516e5334e69b8d81aae751",
-                "sha256:c5f17ad25d2c1286436761b462e22b5020d83316f8e8fcb5deb2b3151f8f1d3a",
-                "sha256:c851b35fc078389bc16b915a0a7c1d5923e12e2c5aeec58c52f4aa8085ac8237",
-                "sha256:cb7df71de0af56000115eafd000b867d1261f786b5eebd88a0ca6360cccfaca7",
-                "sha256:cedb2f9e1f990918ea061f28a0f0077a07702e3819602d3507e2ff98c8d20636",
-                "sha256:e8caf961e1b1a945db76f1b5fa9c91498d15f545ac0ababbe575cfab185d3bd8"
+                "sha256:08b3ba72bd981531fd557f67beee376d6700fba183b167857038997ba30dd297",
+                "sha256:2757fa64e11ec12220968f65d086b7a29b6583d16e9a544c889b22ba98555ef1",
+                "sha256:3102bb2c206700a7d28181dbe04d66b30780cde1d1c02c5f3c165cf3d2489497",
+                "sha256:3498b27d8236057def41de3585f317abae235dd3a11d33e01736ffedb2ef8606",
+                "sha256:378ac77af41350a8c6b8801a66021b52da8a05fd77e578b7380e876c0ce4f528",
+                "sha256:38f16b1317b8dd82df67ed5daa5f5e7c959e46579840d77a67a4ceb9cef0a50b",
+                "sha256:3911c2ef96e5ddc748a3c8b4702c61986628bb719b8378bf1e4a6184bbd48fe4",
+                "sha256:3a3c3f8863255f3c31db3889f8055989527173ef6192a283eb6f4db3c579d830",
+                "sha256:3b14b1da110ea50c8bcbadc3b82c3933974dbeea1832e814aab93ca1163cd4c1",
+                "sha256:535dc1e6e68fad5355f9984d5637c33badbdc987b0c0d303ee95a6c979c9516f",
+                "sha256:6f61319e33222591f885c598e3e24f6a4be3533c1d70c19e0dc59e83a71ce27d",
+                "sha256:723d22d324e7997a651478e9c5a3120a0ecbc9a7e94071f7e1954562a8806cf3",
+                "sha256:76b2775dda7e78680d688daabcb485dc87cf5e3184a0b3e012e1d40e38527cc8",
+                "sha256:782a5c7df9f91979a7a21792e09b34a658058896628217ae6362088b123c8500",
+                "sha256:7e4d159021c2029b958b2363abec4a11db0ce8cd43abb0d9ce44284cb97217e7",
+                "sha256:8dacc4073c359f40fcf73aede8428c35f84639baad7e1b46fce5ab7a8a7be4bb",
+                "sha256:8f33d1156241c43755137288dea619105477961cfa7e47f48dbf96bc2c30720b",
+                "sha256:8ffd4b204d7de77b5dd558cdff986a8274796a1e57813ed005b33fd97e29f059",
+                "sha256:93a280c9eb736a0dcca19296f3c30c720cb41a71b1f9e617f341f0a8e791a69b",
+                "sha256:9a4f66259bdd6964d8cf26142733c81fb562252db74ea367d9beb4f815478e72",
+                "sha256:9a9d4ff06804920388aab69c5ea8a77525cf165356db70131616acd269e19b36",
+                "sha256:a2070c5affdb3a5e751f24208c5c4f3d5f008fa04d28731416e023c93b275277",
+                "sha256:a4857f7e2bc6921dbd487c5c88b84f5633de3e7d416c4dc0bb70256775551a6c",
+                "sha256:a607ae05b6c96057ba86c811d9c43423f35e03874ffb03fbdcd45e0637e8b631",
+                "sha256:a66ca3bdf21c653e47f726ca57f46ba7fc1f260ad99ba783acc3e58e3ebdb9ff",
+                "sha256:ab110c48bc3d97b4d19af41865e14531f300b482da21783fdaacd159251890e8",
+                "sha256:b239711e774c8eb910e9b1ac719f02f5ae4bf35fa0420f438cdc3a7e4e7dd6ec",
+                "sha256:be0416074d7f253865bb67630cf7210cbc14eb05f4099cc0f82430135aaa7a3b",
+                "sha256:c46643970dff9f5c976c6512fd35768c4a3819f01f61169d8cdac3f9290903b7",
+                "sha256:c5ec71fd4a43b6d84ddb88c1df94572479d9a26ef3f150cef3dacefecf888105",
+                "sha256:c6e5174f8ca585755988bc278c8bb5d02d9dc2e971591ef4a1baabdf2d99589b",
+                "sha256:c89b558f8a9a5a6f2cfc923c304d49f0ce629c3bd85cb442ca258ec20366394c",
+                "sha256:cc44e3545d908ecf3e5773266c487ad1877be718d9dc65fc7eb6e7d14960985b",
+                "sha256:cc6f8246e74dd210d7e2b56c76ceaba1cc52b025cd75dbe96eb48791e0250e98",
+                "sha256:cd556c79ad665faeae28020a0ab3bda6cd47d94bec48e36970719b0b86e4dcf4",
+                "sha256:ce6f3a147b4b1a8b09aae48517ae91139b1b010c5f36423fa2b866a8b23df879",
+                "sha256:ceb499d2b3d1d7b7ba23abe8bf26df5f06ba8c71127f188333dddcf356b4b63f",
+                "sha256:cef06fb382557f66d81d804230c11ab292d94b840b3cb7bf4450778377b592f4",
+                "sha256:e448f56cfeae7b1b3b5bcd99bb377cde7c4eb1970a525c770720a352bc4c8044",
+                "sha256:e52d3d95df81c8f6b2a1685aabffadf2d2d9ad97203a40f8d61e51b70f191e4e",
+                "sha256:ee2f1d1c223c3d2c24e3afbb2dd38be3f03b1a8d6a83ee3d9eb8c36a52bee899",
+                "sha256:f2c6888eada180814b8583c3e793f3f343a692fc802546eed45f40a001b1169f",
+                "sha256:f51dbba78d68a44e99d484ca8c8f604f17e957c1ca09c3ebc2c7e3bbd9ba0448",
+                "sha256:f54de00baf200b4539a5a092a759f000b5f45fd226d6d25a76b0dff71177a714",
+                "sha256:fa10fee7e32213f5c7b0d6428ea92e3a3fdd6d725590238a3f92c0de1c78b9d2",
+                "sha256:fabeeb121735d47d8eab8671b6b031ce08514c86b7ad8f7d5490a7b6dcd6267d",
+                "sha256:fac3c432851038b3e6afe086f777732bcf7f6ebbfd90951fa04ee53db6d0bcdd",
+                "sha256:fda29412a66099af6d6de0baa6bd7c52674de177ec2ad2630ca264142d69c6c7",
+                "sha256:ff1330e8bc996570221b450e2d539134baa9465f5cb98aff0e0f73f34172e0ae"
             ],
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4' and python_version < '4'",
-            "version": "==5.3"
+            "version": "==5.3.1"
         },
         "decorator": {
             "hashes": [
@@ -874,14 +889,6 @@
             "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==2.10"
         },
-        "importlib-metadata": {
-            "hashes": [
-                "sha256:5c5a2720817414a6c41f0a49993908068243ae02c1635a228126519b509c8aed",
-                "sha256:bf792d480abbd5eda85794e4afb09dd538393f7d6e6ffef6e9f03d2014cf9450"
-            ],
-            "markers": "python_version < '3.8'",
-            "version": "==3.3.0"
-        },
         "ipython": {
             "hashes": [
                 "sha256:c987e8178ced651532b3b1ff9965925bfd445c279239697052561a9ab806d28f",
@@ -1082,7 +1089,7 @@
                 "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1",
                 "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"
             ],
-            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2'",
             "version": "==2.4.7"
         },
         "pytest": {
@@ -1145,7 +1152,7 @@
                 "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
                 "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
             ],
-            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3'",
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2'",
             "version": "==1.15.0"
         },
         "toml": {
@@ -1164,51 +1171,6 @@
             "markers": "python_version >= '3.7'",
             "version": "==5.0.5"
         },
-        "typed-ast": {
-            "hashes": [
-                "sha256:0666aa36131496aed8f7be0410ff974562ab7eeac11ef351def9ea6fa28f6355",
-                "sha256:0c2c07682d61a629b68433afb159376e24e5b2fd4641d35424e462169c0a7919",
-                "sha256:0d8110d78a5736e16e26213114a38ca35cb15b6515d535413b090bd50951556d",
-                "sha256:249862707802d40f7f29f6e1aad8d84b5aa9e44552d2cc17384b209f091276aa",
-                "sha256:24995c843eb0ad11a4527b026b4dde3da70e1f2d8806c99b7b4a7cf491612652",
-                "sha256:269151951236b0f9a6f04015a9004084a5ab0d5f19b57de779f908621e7d8b75",
-                "sha256:3742b32cf1c6ef124d57f95be609c473d7ec4c14d0090e5a5e05a15269fb4d0c",
-                "sha256:4083861b0aa07990b619bd7ddc365eb7fa4b817e99cf5f8d9cf21a42780f6e01",
-                "sha256:498b0f36cc7054c1fead3d7fc59d2150f4d5c6c56ba7fb150c013fbc683a8d2d",
-                "sha256:4e3e5da80ccbebfff202a67bf900d081906c358ccc3d5e3c8aea42fdfdfd51c1",
-                "sha256:6daac9731f172c2a22ade6ed0c00197ee7cc1221aa84cfdf9c31defeb059a907",
-                "sha256:715ff2f2df46121071622063fc7543d9b1fd19ebfc4f5c8895af64a77a8c852c",
-                "sha256:73d785a950fc82dd2a25897d525d003f6378d1cb23ab305578394694202a58c3",
-                "sha256:7e4c9d7658aaa1fc80018593abdf8598bf91325af6af5cce4ce7c73bc45ea53d",
-                "sha256:8c8aaad94455178e3187ab22c8b01a3837f8ee50e09cf31f1ba129eb293ec30b",
-                "sha256:8ce678dbaf790dbdb3eba24056d5364fb45944f33553dd5869b7580cdbb83614",
-                "sha256:92c325624e304ebf0e025d1224b77dd4e6393f18aab8d829b5b7e04afe9b7a2c",
-                "sha256:aaee9905aee35ba5905cfb3c62f3e83b3bec7b39413f0a7f19be4e547ea01ebb",
-                "sha256:b52ccf7cfe4ce2a1064b18594381bccf4179c2ecf7f513134ec2f993dd4ab395",
-                "sha256:bcd3b13b56ea479b3650b82cabd6b5343a625b0ced5429e4ccad28a8973f301b",
-                "sha256:c9e348e02e4d2b4a8b2eedb48210430658df6951fa484e59de33ff773fbd4b41",
-                "sha256:d205b1b46085271b4e15f670058ce182bd1199e56b317bf2ec004b6a44f911f6",
-                "sha256:d43943ef777f9a1c42bf4e552ba23ac77a6351de620aa9acf64ad54933ad4d34",
-                "sha256:d5d33e9e7af3b34a40dc05f498939f0ebf187f07c385fd58d591c533ad8562fe",
-                "sha256:d648b8e3bf2fe648745c8ffcee3db3ff903d0817a01a12dd6a6ea7a8f4889072",
-                "sha256:f208eb7aff048f6bea9586e61af041ddf7f9ade7caed625742af423f6bae3298",
-                "sha256:fac11badff8313e23717f3dada86a15389d0708275bddf766cca67a84ead3e91",
-                "sha256:fc0fea399acb12edbf8a628ba8d2312f583bdbdb3335635db062fa98cf71fca4",
-                "sha256:fcf135e17cc74dbfbc05894ebca928ffeb23d9790b3167a674921db19082401f",
-                "sha256:fe460b922ec15dd205595c9b5b99e2f056fd98ae8f9f56b888e7a17dc2b757e7"
-            ],
-            "markers": "python_version < '3.8' and implementation_name == 'cpython'",
-            "version": "==1.4.1"
-        },
-        "typing-extensions": {
-            "hashes": [
-                "sha256:7cb407020f00f7bfc3cb3e7881628838e69d8f3fcab2f64742a5e76b2f841918",
-                "sha256:99d4073b617d30288f569d3f13d2bd7548c3a7e4c8de87db09a9d29bb3a4a60c",
-                "sha256:dafc7639cde7f1b6e1acc0f457842a83e722ccca8eef5270af2d74792619a89f"
-            ],
-            "markers": "python_version < '3.8'",
-            "version": "==3.7.4.3"
-        },
         "urllib3": {
             "hashes": [
                 "sha256:19188f96923873c92ccb987120ec4acaa12f0461fa9ce5d3d0772bc965a39e08",
@@ -1229,14 +1191,6 @@
                 "sha256:b62ffa81fb85f4332a4f609cab4ac40709470da05643a082ec1eb88e6d9b97d7"
             ],
             "version": "==1.12.1"
-        },
-        "zipp": {
-            "hashes": [
-                "sha256:102c24ef8f171fd729d46599845e95c7ab894a4cf45f5de11a44cc7444fb1108",
-                "sha256:ed5eee1974372595f9e416cc7bbeeb12335201d8081ca8a0743c954d4446e5cb"
-            ],
-            "markers": "python_version >= '3.6'",
-            "version": "==3.4.0"
         }
     }
 }