Replace platform.linux_distribution with distro.linux_distribution (#7337)

Smallest possible fix for #7106 * Replace platform.linux_dependencies with distro.linux_dependencies * run build.py * Add minimum version of 1.0.1 * Pin back requests package * Update changelog
2026-01-26 07:41:33 +03:00 · 2019-08-27 18:31:35 -07:00
parent aaeb4582e2
commit 0fe28a6459
8 changed files with 192 additions and 178 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,8 @@ Certbot adheres to [Semantic Versioning](https://semver.org/).
 * If Certbot fails to rollback your server configuration, the error message
  links to the Let's Encrypt forum. Change the link to the Help category now
  that the Server category has been closed.
+* Replace platform.linux_distribution with distro.linux_distribution as a step
+  towards Python 3.8 support in Certbot.

 ### Fixed

--- a/certbot/tests/util_test.py
+++ b/certbot/tests/util_test.py
@@ -520,11 +520,11 @@ class OsInfoTest(unittest.TestCase):

            with mock.patch('platform.system_alias',
                            return_value=('linux', '', '')):
-                with mock.patch('platform.linux_distribution',
+                with mock.patch('distro.linux_distribution',
                                return_value=('', '', '')):
                    self.assertEqual(get_python_os_info(), ("linux", ""))

-                with mock.patch('platform.linux_distribution',
+                with mock.patch('distro.linux_distribution',
                                return_value=('testdist', '42', '')):
                    self.assertEqual(get_python_os_info(), ("testdist", "42"))

--- a/certbot/util.py
+++ b/certbot/util.py
@@ -14,6 +14,7 @@ import socket
 import subprocess

 import configargparse
+import distro
 import six

 from acme.magic_typing import Tuple, Union  # pylint: disable=unused-import, no-name-in-module
@@ -391,8 +392,8 @@ def get_python_os_info():
    os_type, os_ver, _ = info
    os_type = os_type.lower()
    if os_type.startswith('linux'):
-        info = platform.linux_distribution()
-        # On arch, platform.linux_distribution() is reportedly ('','',''),
+        info = distro.linux_distribution()
+        # On arch, distro.linux_distribution() is reportedly ('','',''),
        # so handle it defensively
        if info[0]:
            os_type = info[0]
--- a/letsencrypt-auto-source/letsencrypt-auto
+++ b/letsencrypt-auto-source/letsencrypt-auto
@@ -1134,73 +1134,76 @@ if [ "$1" = "--le-auto-phase2" ]; then
 # To generate this, do (with docker and package hashin installed):
 # ```
 # letsencrypt-auto-source/rebuild_dependencies.py \
-#   letsencrypt-auto-sources/pieces/dependency-requirements.txt
+#   letsencrypt-auto-source/pieces/dependency-requirements.txt
+# ```
+# If you want to update a single dependency, run commands similar to these:
+# ```
+# pip install hashin
+# hashin -r dependency-requirements.txt cryptography==1.5.2
 # ```
 ConfigArgParse==0.14.0 \
    --hash=sha256:2e2efe2be3f90577aca9415e32cb629aa2ecd92078adbe27b53a03e53ff12e91
 asn1crypto==0.24.0 \
    --hash=sha256:2f1adbb7546ed199e3c90ef23ec95c5cf3585bac7d11fb7eb562a3fe89c64e87 \
    --hash=sha256:9d5c20441baf0cb60a4ac34cc447c6c189024b6b4c6cd7877034f4965c464e49
-certifi==2019.3.9 \
-    --hash=sha256:59b7658e26ca9c7339e00f8f4636cdfe59d34fa37b9b04f6f9e9926b3cece1a5 \
-    --hash=sha256:b26104d6835d1f5e49452a26eb2ff87fe7090b89dfcaee5ea2212697e1e1d7ae
-cffi==1.12.2 \
-    --hash=sha256:00b97afa72c233495560a0793cdc86c2571721b4271c0667addc83c417f3d90f \
-    --hash=sha256:0ba1b0c90f2124459f6966a10c03794082a2f3985cd699d7d63c4a8dae113e11 \
-    --hash=sha256:0bffb69da295a4fc3349f2ec7cbe16b8ba057b0a593a92cbe8396e535244ee9d \
-    --hash=sha256:21469a2b1082088d11ccd79dd84157ba42d940064abbfa59cf5f024c19cf4891 \
-    --hash=sha256:2e4812f7fa984bf1ab253a40f1f4391b604f7fc424a3e21f7de542a7f8f7aedf \
-    --hash=sha256:2eac2cdd07b9049dd4e68449b90d3ef1adc7c759463af5beb53a84f1db62e36c \
-    --hash=sha256:2f9089979d7456c74d21303c7851f158833d48fb265876923edcb2d0194104ed \
-    --hash=sha256:3dd13feff00bddb0bd2d650cdb7338f815c1789a91a6f68fdc00e5c5ed40329b \
-    --hash=sha256:4065c32b52f4b142f417af6f33a5024edc1336aa845b9d5a8d86071f6fcaac5a \
-    --hash=sha256:51a4ba1256e9003a3acf508e3b4f4661bebd015b8180cc31849da222426ef585 \
-    --hash=sha256:59888faac06403767c0cf8cfb3f4a777b2939b1fbd9f729299b5384f097f05ea \
-    --hash=sha256:59c87886640574d8b14910840327f5cd15954e26ed0bbd4e7cef95fa5aef218f \
-    --hash=sha256:610fc7d6db6c56a244c2701575f6851461753c60f73f2de89c79bbf1cc807f33 \
-    --hash=sha256:70aeadeecb281ea901bf4230c6222af0248c41044d6f57401a614ea59d96d145 \
-    --hash=sha256:71e1296d5e66c59cd2c0f2d72dc476d42afe02aeddc833d8e05630a0551dad7a \
-    --hash=sha256:8fc7a49b440ea752cfdf1d51a586fd08d395ff7a5d555dc69e84b1939f7ddee3 \
-    --hash=sha256:9b5c2afd2d6e3771d516045a6cfa11a8da9a60e3d128746a7fe9ab36dfe7221f \
-    --hash=sha256:9c759051ebcb244d9d55ee791259ddd158188d15adee3c152502d3b69005e6bd \
-    --hash=sha256:b4d1011fec5ec12aa7cc10c05a2f2f12dfa0adfe958e56ae38dc140614035804 \
-    --hash=sha256:b4f1d6332339ecc61275bebd1f7b674098a66fea11a00c84d1c58851e618dc0d \
-    --hash=sha256:c030cda3dc8e62b814831faa4eb93dd9a46498af8cd1d5c178c2de856972fd92 \
-    --hash=sha256:c2e1f2012e56d61390c0e668c20c4fb0ae667c44d6f6a2eeea5d7148dcd3df9f \
-    --hash=sha256:c37c77d6562074452120fc6c02ad86ec928f5710fbc435a181d69334b4de1d84 \
-    --hash=sha256:c8149780c60f8fd02752d0429246088c6c04e234b895c4a42e1ea9b4de8d27fb \
-    --hash=sha256:cbeeef1dc3c4299bd746b774f019de9e4672f7cc666c777cd5b409f0b746dac7 \
-    --hash=sha256:e113878a446c6228669144ae8a56e268c91b7f1fafae927adc4879d9849e0ea7 \
-    --hash=sha256:e21162bf941b85c0cda08224dade5def9360f53b09f9f259adb85fc7dd0e7b35 \
-    --hash=sha256:fb6934ef4744becbda3143d30c6604718871495a5e36c408431bf33d9c146889
+certifi==2019.6.16 \
+    --hash=sha256:046832c04d4e752f37383b628bc601a7ea7211496b4638f6514d0e5b9acc4939 \
+    --hash=sha256:945e3ba63a0b9f577b1395204e13c3a231f9bc0223888be653286534e5873695
+cffi==1.12.3 \
+    --hash=sha256:041c81822e9f84b1d9c401182e174996f0bae9991f33725d059b771744290774 \
+    --hash=sha256:046ef9a22f5d3eed06334d01b1e836977eeef500d9b78e9ef693f9380ad0b83d \
+    --hash=sha256:066bc4c7895c91812eff46f4b1c285220947d4aa46fa0a2651ff85f2afae9c90 \
+    --hash=sha256:066c7ff148ae33040c01058662d6752fd73fbc8e64787229ea8498c7d7f4041b \
+    --hash=sha256:2444d0c61f03dcd26dbf7600cf64354376ee579acad77aef459e34efcb438c63 \
+    --hash=sha256:300832850b8f7967e278870c5d51e3819b9aad8f0a2c8dbe39ab11f119237f45 \
+    --hash=sha256:34c77afe85b6b9e967bd8154e3855e847b70ca42043db6ad17f26899a3df1b25 \
+    --hash=sha256:46de5fa00f7ac09f020729148ff632819649b3e05a007d286242c4882f7b1dc3 \
+    --hash=sha256:4aa8ee7ba27c472d429b980c51e714a24f47ca296d53f4d7868075b175866f4b \
+    --hash=sha256:4d0004eb4351e35ed950c14c11e734182591465a33e960a4ab5e8d4f04d72647 \
+    --hash=sha256:4e3d3f31a1e202b0f5a35ba3bc4eb41e2fc2b11c1eff38b362de710bcffb5016 \
+    --hash=sha256:50bec6d35e6b1aaeb17f7c4e2b9374ebf95a8975d57863546fa83e8d31bdb8c4 \
+    --hash=sha256:55cad9a6df1e2a1d62063f79d0881a414a906a6962bc160ac968cc03ed3efcfb \
+    --hash=sha256:5662ad4e4e84f1eaa8efce5da695c5d2e229c563f9d5ce5b0113f71321bcf753 \
+    --hash=sha256:59b4dc008f98fc6ee2bb4fd7fc786a8d70000d058c2bbe2698275bc53a8d3fa7 \
+    --hash=sha256:73e1ffefe05e4ccd7bcea61af76f36077b914f92b76f95ccf00b0c1b9186f3f9 \
+    --hash=sha256:a1f0fd46eba2d71ce1589f7e50a9e2ffaeb739fb2c11e8192aa2b45d5f6cc41f \
+    --hash=sha256:a2e85dc204556657661051ff4bab75a84e968669765c8a2cd425918699c3d0e8 \
+    --hash=sha256:a5457d47dfff24882a21492e5815f891c0ca35fefae8aa742c6c263dac16ef1f \
+    --hash=sha256:a8dccd61d52a8dae4a825cdbb7735da530179fea472903eb871a5513b5abbfdc \
+    --hash=sha256:ae61af521ed676cf16ae94f30fe202781a38d7178b6b4ab622e4eec8cefaff42 \
+    --hash=sha256:b012a5edb48288f77a63dba0840c92d0504aa215612da4541b7b42d849bc83a3 \
+    --hash=sha256:d2c5cfa536227f57f97c92ac30c8109688ace8fa4ac086d19d0af47d134e2909 \
+    --hash=sha256:d42b5796e20aacc9d15e66befb7a345454eef794fdb0737d1af593447c6c8f45 \
+    --hash=sha256:dee54f5d30d775f525894d67b1495625dd9322945e7fee00731952e0368ff42d \
+    --hash=sha256:e070535507bd6aa07124258171be2ee8dfc19119c28ca94c9dfb7efd23564512 \
+    --hash=sha256:e1ff2748c84d97b065cc95429814cdba39bcbd77c9c85c89344b317dc0d9cbff \
+    --hash=sha256:ed851c75d1e0e043cbf5ca9a8e1b13c4c90f3fbd863dacb01c0808e2b5204201
 chardet==3.0.4 \
    --hash=sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae \
    --hash=sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691
 configobj==5.0.6 \
    --hash=sha256:a2f5650770e1c87fb335af19a9b7eb73fc05ccf22144eb68db7d00cd2bcb0902
-cryptography==2.6.1 \
-    --hash=sha256:066f815f1fe46020877c5983a7e747ae140f517f1b09030ec098503575265ce1 \
-    --hash=sha256:210210d9df0afba9e000636e97810117dc55b7157c903a55716bb73e3ae07705 \
-    --hash=sha256:26c821cbeb683facb966045e2064303029d572a87ee69ca5a1bf54bf55f93ca6 \
-    --hash=sha256:2afb83308dc5c5255149ff7d3fb9964f7c9ee3d59b603ec18ccf5b0a8852e2b1 \
-    --hash=sha256:2db34e5c45988f36f7a08a7ab2b69638994a8923853dec2d4af121f689c66dc8 \
-    --hash=sha256:409c4653e0f719fa78febcb71ac417076ae5e20160aec7270c91d009837b9151 \
-    --hash=sha256:45a4f4cf4f4e6a55c8128f8b76b4c057027b27d4c67e3fe157fa02f27e37830d \
-    --hash=sha256:48eab46ef38faf1031e58dfcc9c3e71756a1108f4c9c966150b605d4a1a7f659 \
-    --hash=sha256:6b9e0ae298ab20d371fc26e2129fd683cfc0cfde4d157c6341722de645146537 \
-    --hash=sha256:6c4778afe50f413707f604828c1ad1ff81fadf6c110cb669579dea7e2e98a75e \
-    --hash=sha256:8c33fb99025d353c9520141f8bc989c2134a1f76bac6369cea060812f5b5c2bb \
-    --hash=sha256:9873a1760a274b620a135054b756f9f218fa61ca030e42df31b409f0fb738b6c \
-    --hash=sha256:9b069768c627f3f5623b1cbd3248c5e7e92aec62f4c98827059eed7053138cc9 \
-    --hash=sha256:9e4ce27a507e4886efbd3c32d120db5089b906979a4debf1d5939ec01b9dd6c5 \
-    --hash=sha256:acb424eaca214cb08735f1a744eceb97d014de6530c1ea23beb86d9c6f13c2ad \
-    --hash=sha256:c8181c7d77388fe26ab8418bb088b1a1ef5fde058c6926790c8a0a3d94075a4a \
-    --hash=sha256:d4afbb0840f489b60f5a580a41a1b9c3622e08ecb5eec8614d4fb4cd914c4460 \
-    --hash=sha256:d9ed28030797c00f4bc43c86bf819266c76a5ea61d006cd4078a93ebf7da6bfd \
-    --hash=sha256:e603aa7bb52e4e8ed4119a58a03b60323918467ef209e6ff9db3ac382e5cf2c6
-# Package enum34 needs to be explicitly limited to Python2.x, in order to avoid
-# certbot-auto failures on Python 3.6+ which enum34 doesn't support. See #5456.
-enum34==1.1.6 ; python_version < '3.4' \
+cryptography==2.7 \
+    --hash=sha256:24b61e5fcb506424d3ec4e18bca995833839bf13c59fc43e530e488f28d46b8c \
+    --hash=sha256:25dd1581a183e9e7a806fe0543f485103232f940fcfc301db65e630512cce643 \
+    --hash=sha256:3452bba7c21c69f2df772762be0066c7ed5dc65df494a1d53a58b683a83e1216 \
+    --hash=sha256:41a0be220dd1ed9e998f5891948306eb8c812b512dc398e5a01846d855050799 \
+    --hash=sha256:5751d8a11b956fbfa314f6553d186b94aa70fdb03d8a4d4f1c82dcacf0cbe28a \
+    --hash=sha256:5f61c7d749048fa6e3322258b4263463bfccefecb0dd731b6561cb617a1d9bb9 \
+    --hash=sha256:72e24c521fa2106f19623a3851e9f89ddfdeb9ac63871c7643790f872a305dfc \
+    --hash=sha256:7b97ae6ef5cba2e3bb14256625423413d5ce8d1abb91d4f29b6d1a081da765f8 \
+    --hash=sha256:961e886d8a3590fd2c723cf07be14e2a91cf53c25f02435c04d39e90780e3b53 \
+    --hash=sha256:96d8473848e984184b6728e2c9d391482008646276c3ff084a1bd89e15ff53a1 \
+    --hash=sha256:ae536da50c7ad1e002c3eee101871d93abdc90d9c5f651818450a0d3af718609 \
+    --hash=sha256:b0db0cecf396033abb4a93c95d1602f268b3a68bb0a9cc06a7cff587bb9a7292 \
+    --hash=sha256:cfee9164954c186b191b91d4193989ca994703b2fff406f71cf454a2d3c7327e \
+    --hash=sha256:e6347742ac8f35ded4a46ff835c60e68c22a536a8ae5c4422966d06946b6d4c6 \
+    --hash=sha256:f27d93f0139a3c056172ebb5d4f9056e770fdf0206c2f422ff2ebbad142e09ed \
+    --hash=sha256:f57b76e46a58b63d1c6375017f4564a28f19a5ca912691fd2e4261b3414b618d
+distro==1.4.0 \
+    --hash=sha256:362dde65d846d23baee4b5c058c8586f219b5a54be1cf5fc6ff55c4578392f57 \
+    --hash=sha256:eedf82a470ebe7d010f1872c17237c79ab04097948800029994fa458e52fb4b4
+enum34==1.1.6 \
    --hash=sha256:2d81cbbe0e73112bdfe6ef8576f2238f2ba27dd0d55752a776c41d38b7da2850 \
    --hash=sha256:644837f692e5f550741432dd3f223bbb9852018674981b1664e5dc339387588a \
    --hash=sha256:6bd0f6ad48ec2aa117d3d141940d484deccda84d4fcd884f5c3d93c23ecd8c79 \
@@ -1216,18 +1219,18 @@ idna==2.8 \
 ipaddress==1.0.22 \
    --hash=sha256:64b28eec5e78e7510698f6d4da08800a5c575caa4a286c93d651c5d3ff7b6794 \
    --hash=sha256:b146c751ea45cad6188dd6cf2d9b757f6f4f8d6ffb96a023e6f2e26eea02a72c
-josepy==1.1.0 \
-    --hash=sha256:1309a25aac3caeff5239729c58ff9b583f7d022ffdb1553406ddfc8e5b52b76e \
-    --hash=sha256:fb5c62c77d26e04df29cb5ecd01b9ce69b6fcc9e521eb1ca193b7faa2afa7086
+josepy==1.2.0 \
+    --hash=sha256:8ea15573203f28653c00f4ac0142520777b1c59d9eddd8da3f256c6ba3cac916 \
+    --hash=sha256:9cec9a839fe9520f0420e4f38e7219525daccce4813296627436fe444cd002d3
 mock==1.3.0 \
    --hash=sha256:1e247dbecc6ce057299eb7ee019ad68314bb93152e81d9a6110d35f4d5eca0f6 \
    --hash=sha256:3f573a18be94de886d1191f27c168427ef693e8dcfcecf95b170577b2eb69cbb
 parsedatetime==2.4 \
    --hash=sha256:3d817c58fb9570d1eec1dd46fa9448cd644eeed4fb612684b02dfda3a79cb84b \
    --hash=sha256:9ee3529454bf35c40a77115f5a596771e59e1aee8c53306f346c461b8e913094
-pbr==5.1.3 \
-    --hash=sha256:8257baf496c8522437e8a6cfe0f15e00aedc6c0e0e7c9d55eeeeab31e0853843 \
-    --hash=sha256:8c361cc353d988e4f5b998555c88098b9d5964c2e11acf7b0d21925a66bb5824
+pbr==5.4.2 \
+    --hash=sha256:56e52299170b9492513c64be44736d27a512fa7e606f21942160b68ce510b4bc \
+    --hash=sha256:9b321c204a88d8ab5082699469f52cc94c5da45c51f114113d01b3d993c24cdf
 pyOpenSSL==19.0.0 \
    --hash=sha256:aeca66338f6de19d1aa46ed634c3b9ae519a64b458f8468aec688e7e3c20f200 \
    --hash=sha256:c727930ad54b10fc157015014b666f2d8b41f70c0d03e83ab67624fd3dd5d1e6
@@ -1236,14 +1239,14 @@ pyRFC3339==1.1 \
    --hash=sha256:81b8cbe1519cdb79bed04910dd6fa4e181faf8c88dff1e1b987b5f7ab23a5b1a
 pycparser==2.19 \
    --hash=sha256:a988718abfad80b6b157acce7bf130a30876d27603738ac39f140993246b25b3
-pyparsing==2.3.1 \
-    --hash=sha256:66c9268862641abcac4a96ba74506e594c884e3f57690a696d21ad8210ed667a \
-    --hash=sha256:f6c5ef0d7480ad048c054c37632c67fca55299990fff127850181659eea33fc3
+pyparsing==2.4.2 \
+    --hash=sha256:6f98a7b9397e206d78cc01df10131398f1c8b8510a2f4d97d9abd82e1aacdd80 \
+    --hash=sha256:d9338df12903bbf5d65a0e4e87c2161968b10d2e489652bb47001d82a9b028b4
 python-augeas==0.5.0 \
    --hash=sha256:67d59d66cdba8d624e0389b87b2a83a176f21f16a87553b50f5703b23f29bac2
-pytz==2018.9 \
-    --hash=sha256:32b0891edff07e28efe91284ed9c31e123d84bea3fd98e1f72be2508f43ef8d9 \
-    --hash=sha256:d5f05e487007e29e03409f9398d074e158d920d36eb82eaf66fb1136b0c5374c
+pytz==2019.2 \
+    --hash=sha256:26c0b32e437e54a18161324a2fca3c4b9846b74a8dccddd843113109e1116b32 \
+    --hash=sha256:c894d57500a4cd2d5c71114aaab77dbab5eabd9022308ce5ac9bb93a60a6f0c7
 requests==2.21.0 \
    --hash=sha256:502a824f31acdacb3a35b6690b5fbf0bc41d63a24a45c4004352b0242707598e \
    --hash=sha256:7bf2a778576d825600030a110f3c0e3e8edc51dfaafe1c146e39a2027784957b
@@ -1253,15 +1256,15 @@ requests-toolbelt==0.9.1 \
 six==1.12.0 \
    --hash=sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c \
    --hash=sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73
-urllib3==1.24.2 \
-    --hash=sha256:4c291ca23bbb55c76518905869ef34bdd5f0e46af7afe6861e8375643ffee1a0 \
-    --hash=sha256:9a247273df709c4fedb38c711e44292304f73f39ab01beda9f6b9fc375669ac3
+urllib3==1.24.3 \
+    --hash=sha256:2393a695cd12afedd0dcb26fe5d50d0cf248e5a66f75dbd89a3d4eb333a61af4 \
+    --hash=sha256:a637e5fae88995b256e3409dc4d52c2e2e0ba32c42a6365fee8bbd2238de3cfb
 zope.component==4.5 \
    --hash=sha256:6edfd626c3b593b72895a8cfcf79bff41f4619194ce996a85bce31ac02b94e55 \
    --hash=sha256:984a06ba3def0b02b1117fa4c45b56e772e8c29c0340820fbf367e440a93a3a4
-zope.deferredimport==4.3 \
-    --hash=sha256:2ddef5a7ecfff132a2dd796253366ecf9748a446e30f1a0b3a636aec9d9c05c5 \
-    --hash=sha256:4aae9cbacb2146cca58e62be0a914f0cec034d3b2d41135ea212ca8a96f4b5ec
+zope.deferredimport==4.3.1 \
+    --hash=sha256:57b2345e7b5eef47efcd4f634ff16c93e4265de3dcf325afc7315ade48d909e1 \
+    --hash=sha256:9a0c211df44aa95f1c4e6d2626f90b400f56989180d3ef96032d708da3d23e0a
 zope.deprecation==4.4.0 \
    --hash=sha256:0d453338f04bacf91bbfba545d8bcdf529aa829e67b705eac8c1a7fdce66e2df \
    --hash=sha256:f1480b74995958b24ce37b0ef04d3663d2683e5d6debc96726eff18acf4ea113
@@ -1309,18 +1312,18 @@ zope.interface==4.6.0 \
    --hash=sha256:d788a3999014ddf416f2dc454efa4a5dbeda657c6aba031cf363741273804c6b \
    --hash=sha256:eed88ae03e1ef3a75a0e96a55a99d7937ed03e53d0cffc2451c208db445a2966 \
    --hash=sha256:f99451f3a579e73b5dd58b1b08d1179791d49084371d9a47baad3b22417f0317
-zope.proxy==4.3.1 \
-    --hash=sha256:0cbcfcafaa3b5fde7ba7a7b9a2b5f09af25c9b90087ad65f9e61359fed0ca63b \
-    --hash=sha256:3de631dd5054a3a20b9ebff0e375f39c0565f1fb9131200d589a6a8f379214cd \
-    --hash=sha256:5429134d04d42262f4dac25f6dea907f6334e9a751ffc62cb1d40226fb52bdeb \
-    --hash=sha256:563c2454b2d0f23bca54d2e0e4d781149b7b06cb5df67e253ca3620f37202dd2 \
-    --hash=sha256:5bcf773345016b1461bb07f70c635b9386e5eaaa08e37d3939dcdf12d3fdbec5 \
-    --hash=sha256:8d84b7aef38c693874e2f2084514522bf73fd720fde0ce2a9352a51315ffa475 \
-    --hash=sha256:90de9473c05819b36816b6cb957097f809691836ed3142648bf62da84b4502fe \
-    --hash=sha256:dd592a69fe872445542a6e1acbefb8e28cbe6b4007b8f5146da917e49b155cc3 \
-    --hash=sha256:e7399ab865399fce322f9cefc6f2f3e4099d087ba581888a9fea1bbe1db42a08 \
-    --hash=sha256:e7d1c280d86d72735a420610df592aac72332194e531a8beff43a592c3a1b8eb \
-    --hash=sha256:e90243fee902adb0c39eceb3c69995c0f2004bc3fdb482fbf629efc656d124ed
+zope.proxy==4.3.2 \
+    --hash=sha256:320a7619992e42142549ebf61e14ce27683b4d14b0cbc45f7c037ba64edb560c \
+    --hash=sha256:824d4dbabbb7deb84f25fdb96ea1eeca436a1802c3c8d323b3eb4ac9d527d41c \
+    --hash=sha256:8a32eb9c94908f3544da2dae3f4a9e6961d78819b88ac6b6f4a51cee2d65f4a0 \
+    --hash=sha256:96265fd3bc3ea646f98482e16307a69de21402eeaaaaf4b841c1161ac2f71bb0 \
+    --hash=sha256:ab6d6975d9c51c13cac828ff03168de21fb562b0664c59bcdc4a4b10f39a5b17 \
+    --hash=sha256:af10cb772391772463f65a58348e2de5ecc06693c16d2078be276dc068bcbb54 \
+    --hash=sha256:b8fd3a3de3f7b6452775e92af22af5977b17b69ac86a38a3ddfe870e40a0d05f \
+    --hash=sha256:bb7088f1bed3b8214284a5e425dc23da56f2f28e8815b7580bfed9e245b6c0b6 \
+    --hash=sha256:bc29b3665eac34f14c4aef5224bef045efcfb1a7d12d78c8685858de5fbf21c0 \
+    --hash=sha256:c39fa6a159affeae5fe31b49d9f5b12bd674fe77271a9a324408b271440c50a7 \
+    --hash=sha256:e946a036ac5b9f897e986ac9dc950a34cffc857d88eae6727b8434fbc4752366

 # Contains the requirements for the letsencrypt package.
 #
--- a/letsencrypt-auto-source/pieces/dependency-requirements.txt
+++ b/letsencrypt-auto-source/pieces/dependency-requirements.txt
@@ -2,73 +2,76 @@
 # To generate this, do (with docker and package hashin installed):
 # ```
 # letsencrypt-auto-source/rebuild_dependencies.py \
-#   letsencrypt-auto-sources/pieces/dependency-requirements.txt
+#   letsencrypt-auto-source/pieces/dependency-requirements.txt
+# ```
+# If you want to update a single dependency, run commands similar to these:
+# ```
+# pip install hashin
+# hashin -r dependency-requirements.txt cryptography==1.5.2
 # ```
 ConfigArgParse==0.14.0 \
    --hash=sha256:2e2efe2be3f90577aca9415e32cb629aa2ecd92078adbe27b53a03e53ff12e91
 asn1crypto==0.24.0 \
    --hash=sha256:2f1adbb7546ed199e3c90ef23ec95c5cf3585bac7d11fb7eb562a3fe89c64e87 \
    --hash=sha256:9d5c20441baf0cb60a4ac34cc447c6c189024b6b4c6cd7877034f4965c464e49
-certifi==2019.3.9 \
-    --hash=sha256:59b7658e26ca9c7339e00f8f4636cdfe59d34fa37b9b04f6f9e9926b3cece1a5 \
-    --hash=sha256:b26104d6835d1f5e49452a26eb2ff87fe7090b89dfcaee5ea2212697e1e1d7ae
-cffi==1.12.2 \
-    --hash=sha256:00b97afa72c233495560a0793cdc86c2571721b4271c0667addc83c417f3d90f \
-    --hash=sha256:0ba1b0c90f2124459f6966a10c03794082a2f3985cd699d7d63c4a8dae113e11 \
-    --hash=sha256:0bffb69da295a4fc3349f2ec7cbe16b8ba057b0a593a92cbe8396e535244ee9d \
-    --hash=sha256:21469a2b1082088d11ccd79dd84157ba42d940064abbfa59cf5f024c19cf4891 \
-    --hash=sha256:2e4812f7fa984bf1ab253a40f1f4391b604f7fc424a3e21f7de542a7f8f7aedf \
-    --hash=sha256:2eac2cdd07b9049dd4e68449b90d3ef1adc7c759463af5beb53a84f1db62e36c \
-    --hash=sha256:2f9089979d7456c74d21303c7851f158833d48fb265876923edcb2d0194104ed \
-    --hash=sha256:3dd13feff00bddb0bd2d650cdb7338f815c1789a91a6f68fdc00e5c5ed40329b \
-    --hash=sha256:4065c32b52f4b142f417af6f33a5024edc1336aa845b9d5a8d86071f6fcaac5a \
-    --hash=sha256:51a4ba1256e9003a3acf508e3b4f4661bebd015b8180cc31849da222426ef585 \
-    --hash=sha256:59888faac06403767c0cf8cfb3f4a777b2939b1fbd9f729299b5384f097f05ea \
-    --hash=sha256:59c87886640574d8b14910840327f5cd15954e26ed0bbd4e7cef95fa5aef218f \
-    --hash=sha256:610fc7d6db6c56a244c2701575f6851461753c60f73f2de89c79bbf1cc807f33 \
-    --hash=sha256:70aeadeecb281ea901bf4230c6222af0248c41044d6f57401a614ea59d96d145 \
-    --hash=sha256:71e1296d5e66c59cd2c0f2d72dc476d42afe02aeddc833d8e05630a0551dad7a \
-    --hash=sha256:8fc7a49b440ea752cfdf1d51a586fd08d395ff7a5d555dc69e84b1939f7ddee3 \
-    --hash=sha256:9b5c2afd2d6e3771d516045a6cfa11a8da9a60e3d128746a7fe9ab36dfe7221f \
-    --hash=sha256:9c759051ebcb244d9d55ee791259ddd158188d15adee3c152502d3b69005e6bd \
-    --hash=sha256:b4d1011fec5ec12aa7cc10c05a2f2f12dfa0adfe958e56ae38dc140614035804 \
-    --hash=sha256:b4f1d6332339ecc61275bebd1f7b674098a66fea11a00c84d1c58851e618dc0d \
-    --hash=sha256:c030cda3dc8e62b814831faa4eb93dd9a46498af8cd1d5c178c2de856972fd92 \
-    --hash=sha256:c2e1f2012e56d61390c0e668c20c4fb0ae667c44d6f6a2eeea5d7148dcd3df9f \
-    --hash=sha256:c37c77d6562074452120fc6c02ad86ec928f5710fbc435a181d69334b4de1d84 \
-    --hash=sha256:c8149780c60f8fd02752d0429246088c6c04e234b895c4a42e1ea9b4de8d27fb \
-    --hash=sha256:cbeeef1dc3c4299bd746b774f019de9e4672f7cc666c777cd5b409f0b746dac7 \
-    --hash=sha256:e113878a446c6228669144ae8a56e268c91b7f1fafae927adc4879d9849e0ea7 \
-    --hash=sha256:e21162bf941b85c0cda08224dade5def9360f53b09f9f259adb85fc7dd0e7b35 \
-    --hash=sha256:fb6934ef4744becbda3143d30c6604718871495a5e36c408431bf33d9c146889
+certifi==2019.6.16 \
+    --hash=sha256:046832c04d4e752f37383b628bc601a7ea7211496b4638f6514d0e5b9acc4939 \
+    --hash=sha256:945e3ba63a0b9f577b1395204e13c3a231f9bc0223888be653286534e5873695
+cffi==1.12.3 \
+    --hash=sha256:041c81822e9f84b1d9c401182e174996f0bae9991f33725d059b771744290774 \
+    --hash=sha256:046ef9a22f5d3eed06334d01b1e836977eeef500d9b78e9ef693f9380ad0b83d \
+    --hash=sha256:066bc4c7895c91812eff46f4b1c285220947d4aa46fa0a2651ff85f2afae9c90 \
+    --hash=sha256:066c7ff148ae33040c01058662d6752fd73fbc8e64787229ea8498c7d7f4041b \
+    --hash=sha256:2444d0c61f03dcd26dbf7600cf64354376ee579acad77aef459e34efcb438c63 \
+    --hash=sha256:300832850b8f7967e278870c5d51e3819b9aad8f0a2c8dbe39ab11f119237f45 \
+    --hash=sha256:34c77afe85b6b9e967bd8154e3855e847b70ca42043db6ad17f26899a3df1b25 \
+    --hash=sha256:46de5fa00f7ac09f020729148ff632819649b3e05a007d286242c4882f7b1dc3 \
+    --hash=sha256:4aa8ee7ba27c472d429b980c51e714a24f47ca296d53f4d7868075b175866f4b \
+    --hash=sha256:4d0004eb4351e35ed950c14c11e734182591465a33e960a4ab5e8d4f04d72647 \
+    --hash=sha256:4e3d3f31a1e202b0f5a35ba3bc4eb41e2fc2b11c1eff38b362de710bcffb5016 \
+    --hash=sha256:50bec6d35e6b1aaeb17f7c4e2b9374ebf95a8975d57863546fa83e8d31bdb8c4 \
+    --hash=sha256:55cad9a6df1e2a1d62063f79d0881a414a906a6962bc160ac968cc03ed3efcfb \
+    --hash=sha256:5662ad4e4e84f1eaa8efce5da695c5d2e229c563f9d5ce5b0113f71321bcf753 \
+    --hash=sha256:59b4dc008f98fc6ee2bb4fd7fc786a8d70000d058c2bbe2698275bc53a8d3fa7 \
+    --hash=sha256:73e1ffefe05e4ccd7bcea61af76f36077b914f92b76f95ccf00b0c1b9186f3f9 \
+    --hash=sha256:a1f0fd46eba2d71ce1589f7e50a9e2ffaeb739fb2c11e8192aa2b45d5f6cc41f \
+    --hash=sha256:a2e85dc204556657661051ff4bab75a84e968669765c8a2cd425918699c3d0e8 \
+    --hash=sha256:a5457d47dfff24882a21492e5815f891c0ca35fefae8aa742c6c263dac16ef1f \
+    --hash=sha256:a8dccd61d52a8dae4a825cdbb7735da530179fea472903eb871a5513b5abbfdc \
+    --hash=sha256:ae61af521ed676cf16ae94f30fe202781a38d7178b6b4ab622e4eec8cefaff42 \
+    --hash=sha256:b012a5edb48288f77a63dba0840c92d0504aa215612da4541b7b42d849bc83a3 \
+    --hash=sha256:d2c5cfa536227f57f97c92ac30c8109688ace8fa4ac086d19d0af47d134e2909 \
+    --hash=sha256:d42b5796e20aacc9d15e66befb7a345454eef794fdb0737d1af593447c6c8f45 \
+    --hash=sha256:dee54f5d30d775f525894d67b1495625dd9322945e7fee00731952e0368ff42d \
+    --hash=sha256:e070535507bd6aa07124258171be2ee8dfc19119c28ca94c9dfb7efd23564512 \
+    --hash=sha256:e1ff2748c84d97b065cc95429814cdba39bcbd77c9c85c89344b317dc0d9cbff \
+    --hash=sha256:ed851c75d1e0e043cbf5ca9a8e1b13c4c90f3fbd863dacb01c0808e2b5204201
 chardet==3.0.4 \
    --hash=sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae \
    --hash=sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691
 configobj==5.0.6 \
    --hash=sha256:a2f5650770e1c87fb335af19a9b7eb73fc05ccf22144eb68db7d00cd2bcb0902
-cryptography==2.6.1 \
-    --hash=sha256:066f815f1fe46020877c5983a7e747ae140f517f1b09030ec098503575265ce1 \
-    --hash=sha256:210210d9df0afba9e000636e97810117dc55b7157c903a55716bb73e3ae07705 \
-    --hash=sha256:26c821cbeb683facb966045e2064303029d572a87ee69ca5a1bf54bf55f93ca6 \
-    --hash=sha256:2afb83308dc5c5255149ff7d3fb9964f7c9ee3d59b603ec18ccf5b0a8852e2b1 \
-    --hash=sha256:2db34e5c45988f36f7a08a7ab2b69638994a8923853dec2d4af121f689c66dc8 \
-    --hash=sha256:409c4653e0f719fa78febcb71ac417076ae5e20160aec7270c91d009837b9151 \
-    --hash=sha256:45a4f4cf4f4e6a55c8128f8b76b4c057027b27d4c67e3fe157fa02f27e37830d \
-    --hash=sha256:48eab46ef38faf1031e58dfcc9c3e71756a1108f4c9c966150b605d4a1a7f659 \
-    --hash=sha256:6b9e0ae298ab20d371fc26e2129fd683cfc0cfde4d157c6341722de645146537 \
-    --hash=sha256:6c4778afe50f413707f604828c1ad1ff81fadf6c110cb669579dea7e2e98a75e \
-    --hash=sha256:8c33fb99025d353c9520141f8bc989c2134a1f76bac6369cea060812f5b5c2bb \
-    --hash=sha256:9873a1760a274b620a135054b756f9f218fa61ca030e42df31b409f0fb738b6c \
-    --hash=sha256:9b069768c627f3f5623b1cbd3248c5e7e92aec62f4c98827059eed7053138cc9 \
-    --hash=sha256:9e4ce27a507e4886efbd3c32d120db5089b906979a4debf1d5939ec01b9dd6c5 \
-    --hash=sha256:acb424eaca214cb08735f1a744eceb97d014de6530c1ea23beb86d9c6f13c2ad \
-    --hash=sha256:c8181c7d77388fe26ab8418bb088b1a1ef5fde058c6926790c8a0a3d94075a4a \
-    --hash=sha256:d4afbb0840f489b60f5a580a41a1b9c3622e08ecb5eec8614d4fb4cd914c4460 \
-    --hash=sha256:d9ed28030797c00f4bc43c86bf819266c76a5ea61d006cd4078a93ebf7da6bfd \
-    --hash=sha256:e603aa7bb52e4e8ed4119a58a03b60323918467ef209e6ff9db3ac382e5cf2c6
-# Package enum34 needs to be explicitly limited to Python2.x, in order to avoid
-# certbot-auto failures on Python 3.6+ which enum34 doesn't support. See #5456.
-enum34==1.1.6 ; python_version < '3.4' \
+cryptography==2.7 \
+    --hash=sha256:24b61e5fcb506424d3ec4e18bca995833839bf13c59fc43e530e488f28d46b8c \
+    --hash=sha256:25dd1581a183e9e7a806fe0543f485103232f940fcfc301db65e630512cce643 \
+    --hash=sha256:3452bba7c21c69f2df772762be0066c7ed5dc65df494a1d53a58b683a83e1216 \
+    --hash=sha256:41a0be220dd1ed9e998f5891948306eb8c812b512dc398e5a01846d855050799 \
+    --hash=sha256:5751d8a11b956fbfa314f6553d186b94aa70fdb03d8a4d4f1c82dcacf0cbe28a \
+    --hash=sha256:5f61c7d749048fa6e3322258b4263463bfccefecb0dd731b6561cb617a1d9bb9 \
+    --hash=sha256:72e24c521fa2106f19623a3851e9f89ddfdeb9ac63871c7643790f872a305dfc \
+    --hash=sha256:7b97ae6ef5cba2e3bb14256625423413d5ce8d1abb91d4f29b6d1a081da765f8 \
+    --hash=sha256:961e886d8a3590fd2c723cf07be14e2a91cf53c25f02435c04d39e90780e3b53 \
+    --hash=sha256:96d8473848e984184b6728e2c9d391482008646276c3ff084a1bd89e15ff53a1 \
+    --hash=sha256:ae536da50c7ad1e002c3eee101871d93abdc90d9c5f651818450a0d3af718609 \
+    --hash=sha256:b0db0cecf396033abb4a93c95d1602f268b3a68bb0a9cc06a7cff587bb9a7292 \
+    --hash=sha256:cfee9164954c186b191b91d4193989ca994703b2fff406f71cf454a2d3c7327e \
+    --hash=sha256:e6347742ac8f35ded4a46ff835c60e68c22a536a8ae5c4422966d06946b6d4c6 \
+    --hash=sha256:f27d93f0139a3c056172ebb5d4f9056e770fdf0206c2f422ff2ebbad142e09ed \
+    --hash=sha256:f57b76e46a58b63d1c6375017f4564a28f19a5ca912691fd2e4261b3414b618d
+distro==1.4.0 \
+    --hash=sha256:362dde65d846d23baee4b5c058c8586f219b5a54be1cf5fc6ff55c4578392f57 \
+    --hash=sha256:eedf82a470ebe7d010f1872c17237c79ab04097948800029994fa458e52fb4b4
+enum34==1.1.6 \
    --hash=sha256:2d81cbbe0e73112bdfe6ef8576f2238f2ba27dd0d55752a776c41d38b7da2850 \
    --hash=sha256:644837f692e5f550741432dd3f223bbb9852018674981b1664e5dc339387588a \
    --hash=sha256:6bd0f6ad48ec2aa117d3d141940d484deccda84d4fcd884f5c3d93c23ecd8c79 \
@@ -84,18 +87,18 @@ idna==2.8 \
 ipaddress==1.0.22 \
    --hash=sha256:64b28eec5e78e7510698f6d4da08800a5c575caa4a286c93d651c5d3ff7b6794 \
    --hash=sha256:b146c751ea45cad6188dd6cf2d9b757f6f4f8d6ffb96a023e6f2e26eea02a72c
-josepy==1.1.0 \
-    --hash=sha256:1309a25aac3caeff5239729c58ff9b583f7d022ffdb1553406ddfc8e5b52b76e \
-    --hash=sha256:fb5c62c77d26e04df29cb5ecd01b9ce69b6fcc9e521eb1ca193b7faa2afa7086
+josepy==1.2.0 \
+    --hash=sha256:8ea15573203f28653c00f4ac0142520777b1c59d9eddd8da3f256c6ba3cac916 \
+    --hash=sha256:9cec9a839fe9520f0420e4f38e7219525daccce4813296627436fe444cd002d3
 mock==1.3.0 \
    --hash=sha256:1e247dbecc6ce057299eb7ee019ad68314bb93152e81d9a6110d35f4d5eca0f6 \
    --hash=sha256:3f573a18be94de886d1191f27c168427ef693e8dcfcecf95b170577b2eb69cbb
 parsedatetime==2.4 \
    --hash=sha256:3d817c58fb9570d1eec1dd46fa9448cd644eeed4fb612684b02dfda3a79cb84b \
    --hash=sha256:9ee3529454bf35c40a77115f5a596771e59e1aee8c53306f346c461b8e913094
-pbr==5.1.3 \
-    --hash=sha256:8257baf496c8522437e8a6cfe0f15e00aedc6c0e0e7c9d55eeeeab31e0853843 \
-    --hash=sha256:8c361cc353d988e4f5b998555c88098b9d5964c2e11acf7b0d21925a66bb5824
+pbr==5.4.2 \
+    --hash=sha256:56e52299170b9492513c64be44736d27a512fa7e606f21942160b68ce510b4bc \
+    --hash=sha256:9b321c204a88d8ab5082699469f52cc94c5da45c51f114113d01b3d993c24cdf
 pyOpenSSL==19.0.0 \
    --hash=sha256:aeca66338f6de19d1aa46ed634c3b9ae519a64b458f8468aec688e7e3c20f200 \
    --hash=sha256:c727930ad54b10fc157015014b666f2d8b41f70c0d03e83ab67624fd3dd5d1e6
@@ -104,14 +107,14 @@ pyRFC3339==1.1 \
    --hash=sha256:81b8cbe1519cdb79bed04910dd6fa4e181faf8c88dff1e1b987b5f7ab23a5b1a
 pycparser==2.19 \
    --hash=sha256:a988718abfad80b6b157acce7bf130a30876d27603738ac39f140993246b25b3
-pyparsing==2.3.1 \
-    --hash=sha256:66c9268862641abcac4a96ba74506e594c884e3f57690a696d21ad8210ed667a \
-    --hash=sha256:f6c5ef0d7480ad048c054c37632c67fca55299990fff127850181659eea33fc3
+pyparsing==2.4.2 \
+    --hash=sha256:6f98a7b9397e206d78cc01df10131398f1c8b8510a2f4d97d9abd82e1aacdd80 \
+    --hash=sha256:d9338df12903bbf5d65a0e4e87c2161968b10d2e489652bb47001d82a9b028b4
 python-augeas==0.5.0 \
    --hash=sha256:67d59d66cdba8d624e0389b87b2a83a176f21f16a87553b50f5703b23f29bac2
-pytz==2018.9 \
-    --hash=sha256:32b0891edff07e28efe91284ed9c31e123d84bea3fd98e1f72be2508f43ef8d9 \
-    --hash=sha256:d5f05e487007e29e03409f9398d074e158d920d36eb82eaf66fb1136b0c5374c
+pytz==2019.2 \
+    --hash=sha256:26c0b32e437e54a18161324a2fca3c4b9846b74a8dccddd843113109e1116b32 \
+    --hash=sha256:c894d57500a4cd2d5c71114aaab77dbab5eabd9022308ce5ac9bb93a60a6f0c7
 requests==2.21.0 \
    --hash=sha256:502a824f31acdacb3a35b6690b5fbf0bc41d63a24a45c4004352b0242707598e \
    --hash=sha256:7bf2a778576d825600030a110f3c0e3e8edc51dfaafe1c146e39a2027784957b
@@ -121,15 +124,15 @@ requests-toolbelt==0.9.1 \
 six==1.12.0 \
    --hash=sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c \
    --hash=sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73
-urllib3==1.24.2 \
-    --hash=sha256:4c291ca23bbb55c76518905869ef34bdd5f0e46af7afe6861e8375643ffee1a0 \
-    --hash=sha256:9a247273df709c4fedb38c711e44292304f73f39ab01beda9f6b9fc375669ac3
+urllib3==1.24.3 \
+    --hash=sha256:2393a695cd12afedd0dcb26fe5d50d0cf248e5a66f75dbd89a3d4eb333a61af4 \
+    --hash=sha256:a637e5fae88995b256e3409dc4d52c2e2e0ba32c42a6365fee8bbd2238de3cfb
 zope.component==4.5 \
    --hash=sha256:6edfd626c3b593b72895a8cfcf79bff41f4619194ce996a85bce31ac02b94e55 \
    --hash=sha256:984a06ba3def0b02b1117fa4c45b56e772e8c29c0340820fbf367e440a93a3a4
-zope.deferredimport==4.3 \
-    --hash=sha256:2ddef5a7ecfff132a2dd796253366ecf9748a446e30f1a0b3a636aec9d9c05c5 \
-    --hash=sha256:4aae9cbacb2146cca58e62be0a914f0cec034d3b2d41135ea212ca8a96f4b5ec
+zope.deferredimport==4.3.1 \
+    --hash=sha256:57b2345e7b5eef47efcd4f634ff16c93e4265de3dcf325afc7315ade48d909e1 \
+    --hash=sha256:9a0c211df44aa95f1c4e6d2626f90b400f56989180d3ef96032d708da3d23e0a
 zope.deprecation==4.4.0 \
    --hash=sha256:0d453338f04bacf91bbfba545d8bcdf529aa829e67b705eac8c1a7fdce66e2df \
    --hash=sha256:f1480b74995958b24ce37b0ef04d3663d2683e5d6debc96726eff18acf4ea113
@@ -177,15 +180,15 @@ zope.interface==4.6.0 \
    --hash=sha256:d788a3999014ddf416f2dc454efa4a5dbeda657c6aba031cf363741273804c6b \
    --hash=sha256:eed88ae03e1ef3a75a0e96a55a99d7937ed03e53d0cffc2451c208db445a2966 \
    --hash=sha256:f99451f3a579e73b5dd58b1b08d1179791d49084371d9a47baad3b22417f0317
-zope.proxy==4.3.1 \
-    --hash=sha256:0cbcfcafaa3b5fde7ba7a7b9a2b5f09af25c9b90087ad65f9e61359fed0ca63b \
-    --hash=sha256:3de631dd5054a3a20b9ebff0e375f39c0565f1fb9131200d589a6a8f379214cd \
-    --hash=sha256:5429134d04d42262f4dac25f6dea907f6334e9a751ffc62cb1d40226fb52bdeb \
-    --hash=sha256:563c2454b2d0f23bca54d2e0e4d781149b7b06cb5df67e253ca3620f37202dd2 \
-    --hash=sha256:5bcf773345016b1461bb07f70c635b9386e5eaaa08e37d3939dcdf12d3fdbec5 \
-    --hash=sha256:8d84b7aef38c693874e2f2084514522bf73fd720fde0ce2a9352a51315ffa475 \
-    --hash=sha256:90de9473c05819b36816b6cb957097f809691836ed3142648bf62da84b4502fe \
-    --hash=sha256:dd592a69fe872445542a6e1acbefb8e28cbe6b4007b8f5146da917e49b155cc3 \
-    --hash=sha256:e7399ab865399fce322f9cefc6f2f3e4099d087ba581888a9fea1bbe1db42a08 \
-    --hash=sha256:e7d1c280d86d72735a420610df592aac72332194e531a8beff43a592c3a1b8eb \
-    --hash=sha256:e90243fee902adb0c39eceb3c69995c0f2004bc3fdb482fbf629efc656d124ed
+zope.proxy==4.3.2 \
+    --hash=sha256:320a7619992e42142549ebf61e14ce27683b4d14b0cbc45f7c037ba64edb560c \
+    --hash=sha256:824d4dbabbb7deb84f25fdb96ea1eeca436a1802c3c8d323b3eb4ac9d527d41c \
+    --hash=sha256:8a32eb9c94908f3544da2dae3f4a9e6961d78819b88ac6b6f4a51cee2d65f4a0 \
+    --hash=sha256:96265fd3bc3ea646f98482e16307a69de21402eeaaaaf4b841c1161ac2f71bb0 \
+    --hash=sha256:ab6d6975d9c51c13cac828ff03168de21fb562b0664c59bcdc4a4b10f39a5b17 \
+    --hash=sha256:af10cb772391772463f65a58348e2de5ecc06693c16d2078be276dc068bcbb54 \
+    --hash=sha256:b8fd3a3de3f7b6452775e92af22af5977b17b69ac86a38a3ddfe870e40a0d05f \
+    --hash=sha256:bb7088f1bed3b8214284a5e425dc23da56f2f28e8815b7580bfed9e245b6c0b6 \
+    --hash=sha256:bc29b3665eac34f14c4aef5224bef045efcfb1a7d12d78c8685858de5fbf21c0 \
+    --hash=sha256:c39fa6a159affeae5fe31b49d9f5b12bd674fe77271a9a324408b271440c50a7 \
+    --hash=sha256:e946a036ac5b9f897e986ac9dc950a34cffc857d88eae6727b8434fbc4752366
--- a/letsencrypt-auto-source/rebuild_dependencies.py
+++ b/letsencrypt-auto-source/rebuild_dependencies.py
@@ -33,7 +33,7 @@ DISTRIBUTION_LIST = [
    'fedora:29',
 ]

-# Theses constraints will be added while gathering dependencies on each distribution.
+# These constraints will be added while gathering dependencies on each distribution.
 # It can be used because a particular version for a package is required for any reason,
 # or to solve a version conflict between two distributions requirements.
 AUTHORITATIVE_CONSTRAINTS = {
@@ -45,7 +45,10 @@ AUTHORITATIVE_CONSTRAINTS = {
    # Package enum34 needs to be explicitly limited to Python2.x, in order to avoid
    # certbot-auto failures on Python 3.6+ which enum34 doesn't support. See #5456.
    # TODO: hashin seems to overwrite environment markers in dependencies. This needs to be fixed.
-    'enum34': '1.1.6 ; python_version < \'3.4\''
+    'enum34': '1.1.6 ; python_version < \'3.4\'',
+    # Newer versions of requests dropped support for python 3.4. Once Certbot does as well,
+    # we should unpin the dependency.
+    'requests': '2.21.0',
 }


--- a/setup.py
+++ b/setup.py
@@ -41,6 +41,7 @@ install_requires = [
    'ConfigArgParse>=0.9.3',
    'configobj',
    'cryptography>=1.2.3',  # load_pem_x509_certificate
+    'distro>=1.0.1',
    # 1.1.0+ is required to avoid the warnings described at
    # https://github.com/certbot/josepy/issues/13.
    'josepy>=1.1.0',
--- a/tools/oldest_constraints.txt
+++ b/tools/oldest_constraints.txt
@@ -51,6 +51,7 @@ funcsigs==0.4
 zope.hookable==4.0.4

 # Ubuntu Bionic constraints.
+distro==1.0.1
 # Lexicon oldest constraint is overridden appropriately on relevant DNS provider plugins
 # using their local-oldest-requirements.txt
 dns-lexicon==2.2.1