diff --git a/Cargo.lock b/Cargo.lock
index 929a6c0..d4cb909 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "ansi_term"
 version = "0.11.0"
@@ -11,9 +13,9 @@ dependencies = [
 
 [[package]]
 name = "async-trait"
-version = "0.1.48"
+version = "0.1.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36ea56748e10732c49404c153638a15ec3d6211ec5ff35d9bb20e13b93576adf"
+checksum = "0b98e84bbb4cbcdd97da190ba0c58a1bb0de2c1fdf67d159e192ed766aeca722"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -72,9 +74,9 @@ checksum = "b700ce4376041dcd0a327fd0097c41095743c4c8af8887265942faf1100bd040"
 
 [[package]]
 name = "cc"
-version = "1.0.67"
+version = "1.0.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3c69b077ad434294d3ce9f1f6143a2a4b89a8a2d54ef813d85003a4fd1137fd"
+checksum = "4a72c244c1ff497a746a7e1fb3d14bd08420ecda70c8f25c7112f2781652d787"
 
 [[package]]
 name = "cfg-if"
@@ -106,23 +108,24 @@ dependencies = [
  "encode_unicode",
  "lazy_static",
  "libc",
- "regex",
  "terminal_size",
- "unicode-width",
  "winapi",
 ]
 
 [[package]]
-name = "cpuid-bool"
-version = "0.1.2"
+name = "cpufeatures"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8aebca1129a03dc6dc2b127edd729435bbc4a37e1d5f4d7513165089ceb02634"
+checksum = "66c99696f6c9dd7f35d486b9d04d7e6e202aa3e8c40d553f2fdf5e7e0c6a71ef"
+dependencies = [
+ "libc",
+]
 
 [[package]]
 name = "crossbeam-channel"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dca26ee1f8d361640700bde38b2c37d8c22b3ce2d360e1fc1c74ea4b0aa7d775"
+checksum = "06ed27e177f16d65f0f0c22a213e17c696ace5dd64b14258b52f9417ccb52db4"
 dependencies = [
  "cfg-if",
  "crossbeam-utils",
@@ -141,9 +144,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-epoch"
-version = "0.9.3"
+version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2584f639eb95fea8c798496315b297cf81b9b58b6d30ab066a75455333cf4b12"
+checksum = "4ec02e091aa634e2c3ada4a392989e7c3116673ef0ac5b72232439094d73b7fd"
 dependencies = [
  "cfg-if",
  "crossbeam-utils",
@@ -154,11 +157,10 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-utils"
-version = "0.8.3"
+version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e7e9d99fa91428effe99c5c6d4634cdeba32b8cf784fc428a2a687f61a952c49"
+checksum = "d82cfc11ce7f2c3faef78d8a684447b40d503d9681acebed6cb728d45940c4db"
 dependencies = [
- "autocfg",
  "cfg-if",
  "lazy_static",
 ]
@@ -223,9 +225,9 @@ checksum = "2022715d62ab30faffd124d40b76f4134a550a87792276512b18d63272333394"
 
 [[package]]
 name = "futures"
-version = "0.3.13"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f55667319111d593ba876406af7c409c0ebb44dc4be6132a783ccf163ea14c1"
+checksum = "0e7e43a803dae2fa37c1f6a8fe121e1f7bf9548b4dfc0522a42f34145dadfc27"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -238,9 +240,9 @@ dependencies = [
 
 [[package]]
 name = "futures-channel"
-version = "0.3.13"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c2dd2df839b57db9ab69c2c9d8f3e8c81984781937fe2807dc6dcf3b2ad2939"
+checksum = "e682a68b29a882df0545c143dc3646daefe80ba479bcdede94d5a703de2871e2"
 dependencies = [
  "futures-core",
  "futures-sink",
@@ -248,15 +250,15 @@ dependencies = [
 
 [[package]]
 name = "futures-core"
-version = "0.3.13"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "15496a72fabf0e62bdc3df11a59a3787429221dd0710ba8ef163d6f7a9112c94"
+checksum = "0402f765d8a89a26043b889b26ce3c4679d268fa6bb22cd7c6aad98340e179d1"
 
 [[package]]
 name = "futures-executor"
-version = "0.3.13"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "891a4b7b96d84d5940084b2a37632dd65deeae662c114ceaa2c879629c9c0ad1"
+checksum = "badaa6a909fac9e7236d0620a2f57f7664640c56575b71a7552fbd68deafab79"
 dependencies = [
  "futures-core",
  "futures-task",
@@ -265,16 +267,17 @@ dependencies = [
 
 [[package]]
 name = "futures-io"
-version = "0.3.13"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d71c2c65c57704c32f5241c1223167c2c3294fd34ac020c807ddbe6db287ba59"
+checksum = "acc499defb3b348f8d8f3f66415835a9131856ff7714bf10dadfc4ec4bdb29a1"
 
 [[package]]
 name = "futures-macro"
-version = "0.3.13"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea405816a5139fb39af82c2beb921d52143f556038378d6db21183a5c37fbfb7"
+checksum = "a4c40298486cdf52cc00cd6d6987892ba502c7656a16a4192a9992b1ccedd121"
 dependencies = [
+ "autocfg",
  "proc-macro-hack",
  "proc-macro2",
  "quote",
@@ -283,22 +286,23 @@ dependencies = [
 
 [[package]]
 name = "futures-sink"
-version = "0.3.13"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "85754d98985841b7d4f5e8e6fbfa4a4ac847916893ec511a2917ccd8525b8bb3"
+checksum = "a57bead0ceff0d6dde8f465ecd96c9338121bb7717d3e7b108059531870c4282"
 
 [[package]]
 name = "futures-task"
-version = "0.3.13"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa189ef211c15ee602667a6fcfe1c1fd9e07d42250d2156382820fba33c9df80"
+checksum = "8a16bef9fc1a4dddb5bee51c989e3fbba26569cbb0e31f5b303c184e3dd33dae"
 
 [[package]]
 name = "futures-util"
-version = "0.3.13"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1812c7ab8aedf8d6f2701a43e1243acdbcc2b36ab26e2ad421eb99ac963d96d1"
+checksum = "feb5c238d27e2bf94ffdfd27b2c29e3df4a68c4193bb6427384259e2bf191967"
 dependencies = [
+ "autocfg",
  "futures-channel",
  "futures-core",
  "futures-io",
@@ -325,9 +329,9 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c9495705279e7140bf035dde1f6e750c162df8b625267cd52cc44e0b156732c8"
+checksum = "7fcd999463524c52659517fe2cea98493cfe485d10565e7b0fb07dbba7ad2753"
 dependencies = [
  "cfg-if",
  "libc",
@@ -336,9 +340,9 @@ dependencies = [
 
 [[package]]
 name = "hermit-abi"
-version = "0.1.18"
+version = "0.1.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "322f4de77956e22ed0e5032c359a0f1273f1f7f0d79bfa3b8ffbc730d7fbcc5c"
+checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
 dependencies = [
  "libc",
 ]
@@ -355,9 +359,9 @@ dependencies = [
 
 [[package]]
 name = "indicatif"
-version = "0.15.0"
+version = "0.16.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7baab56125e25686df467fe470785512329883aab42696d661247aca2a2896e4"
+checksum = "2d207dc617c7a380ab07ff572a6e52fa202a2a8f355860ac9c38e23f8196be1b"
 dependencies = [
  "console",
  "lazy_static",
@@ -366,10 +370,33 @@ dependencies = [
 ]
 
 [[package]]
-name = "instant"
-version = "0.1.9"
+name = "indoc"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61124eeebbd69b8190558df225adf7e4caafce0d743919e5d6b19652314ec5ec"
+checksum = "47741a8bc60fb26eb8d6e0238bbb26d8575ff623fdc97b1a2c00c050b9684ed8"
+dependencies = [
+ "indoc-impl",
+ "proc-macro-hack",
+]
+
+[[package]]
+name = "indoc-impl"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ce046d161f000fffde5f432a0d034d0341dc152643b2598ed5bfce44c4f3a8f0"
+dependencies = [
+ "proc-macro-hack",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "unindent",
+]
+
+[[package]]
+name = "instant"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bee0328b1209d157ef001c94dd85b4f8f64139adb0eac2659f4b08382b2f474d"
 dependencies = [
  "cfg-if",
 ]
@@ -403,15 +430,15 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.90"
+version = "0.2.98"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba4aede83fc3617411dc6993bc8c70919750c1c257c6ca6a502aed6e0e2394ae"
+checksum = "320cfe77175da3a483efed4bc0adc1968ca050b098ce4f2f1c13a56626128790"
 
 [[package]]
 name = "lock_api"
-version = "0.4.2"
+version = "0.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd96ffd135b2fd7b973ac026d28085defbe8983df057ced3eb4f2130b0831312"
+checksum = "0382880606dff6d15c9476c416d18690b72742aa7b605bb6dd6ec9030fbf07eb"
 dependencies = [
  "scopeguard",
 ]
@@ -432,31 +459,36 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
 
 [[package]]
-name = "md5"
-version = "0.7.0"
+name = "md-5"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "490cc448043f947bae3cbee9c203358d62dbee0db12107a74be5c30ccfd09771"
+checksum = "7b5a279bb9607f9f53c22d496eade00d138d1bdcccd07d74650387cf94942a15"
+dependencies = [
+ "block-buffer",
+ "digest",
+ "opaque-debug",
+]
 
 [[package]]
 name = "memchr"
-version = "2.3.4"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
+checksum = "b16bd47d9e329435e309c58469fe0791c2d0d1ba96ec0954152a5ae2b04387dc"
 
 [[package]]
 name = "memoffset"
-version = "0.6.1"
+version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "157b4208e3059a8f9e78d559edc658e13df41410cb3ae03979c83130067fdd87"
+checksum = "59accc507f1338036a0477ef61afdae33cde60840f4dfe481319ce3ad116ddf9"
 dependencies = [
  "autocfg",
 ]
 
 [[package]]
 name = "mio"
-version = "0.7.10"
+version = "0.7.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2182a122f3b7f3f5329cb1972cee089ba2459a0a80a56935e6e674f096f8d839"
+checksum = "8c2bdb6314ec10835cd3293dd268473a835c02b7b352e788be788b3c6ca6bb16"
 dependencies = [
  "libc",
  "log",
@@ -467,11 +499,10 @@ dependencies = [
 
 [[package]]
 name = "miow"
-version = "0.3.6"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a33c1b55807fbed163481b5ba66db4b2fa6cde694a5027be10fb724206c5897"
+checksum = "b9f1c5b025cda876f66ef43a113f91ebc9f4ccef34843000e0adf6ebbab84e21"
 dependencies = [
- "socket2",
  "winapi",
 ]
 
@@ -502,15 +533,15 @@ dependencies = [
 
 [[package]]
 name = "number_prefix"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "17b02fc0ff9a9e4b35b3342880f48e896ebf69f2967921fe8646bf5b7125956a"
+checksum = "830b246a0e5f20af87141b25c173cd1b609bd7779a4617d6ec582abaf90870f3"
 
 [[package]]
 name = "once_cell"
-version = "1.7.2"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af8b08b04175473088b46763e51ee54da5f9a164bc162f615b91bc179dbf15a3"
+checksum = "692fcb63b64b1758029e0a96ee63e049ce8c5948587f2f7208df04625e5f6b56"
 
 [[package]]
 name = "opaque-debug"
@@ -520,9 +551,9 @@ checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
 [[package]]
 name = "openssl"
-version = "0.10.33"
+version = "0.10.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a61075b62a23fef5a29815de7536d940aa35ce96d18ce0cc5076272db678a577"
+checksum = "549430950c79ae24e6d02e0b7404534ecf311d94cc9f861e9e4020187d13d885"
 dependencies = [
  "bitflags",
  "cfg-if",
@@ -534,9 +565,9 @@ dependencies = [
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.61"
+version = "0.9.65"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "313752393519e876837e09e1fa183ddef0be7735868dced3196f4472d536277f"
+checksum = "7a7907e3bfa08bb85105209cdfcb6c63d109f8f6c1ed6ca318fff5c1853fbc1d"
 dependencies = [
  "autocfg",
  "cc",
@@ -570,6 +601,25 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "paste"
+version = "0.1.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "45ca20c77d80be666aef2b45486da86238fabe33e38306bd3118fe4af33fa880"
+dependencies = [
+ "paste-impl",
+ "proc-macro-hack",
+]
+
+[[package]]
+name = "paste-impl"
+version = "0.1.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d95a7db200b97ef370c8e6de0088252f7e0dfff7d047a28528e47456c0fc98b6"
+dependencies = [
+ "proc-macro-hack",
+]
+
 [[package]]
 name = "percent-encoding"
 version = "2.1.0"
@@ -594,31 +644,11 @@ dependencies = [
  "siphasher",
 ]
 
-[[package]]
-name = "pin-project"
-version = "1.0.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96fa8ebb90271c4477f144354485b8068bd8f6b78b428b01ba892ca26caf0b63"
-dependencies = [
- "pin-project-internal",
-]
-
-[[package]]
-name = "pin-project-internal"
-version = "1.0.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "758669ae3558c6f74bd2a18b41f7ac0b5a195aea6639d6a9b5e5d1ad5ba24c0b"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "pin-project-lite"
-version = "0.2.6"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc0e1f259c92177c30a4c9d177246edd0a3568b25756a977d0632cf8fa37e905"
+checksum = "8d31d11c69a6b52a174b42bdc0c30e5e11670f90788b2c471c31c1d17d449443"
 
 [[package]]
 name = "pin-utils"
@@ -634,9 +664,9 @@ checksum = "3831453b3449ceb48b6d9c7ad7c96d5ea673e9b470a1dc578c2ce6521230884c"
 
 [[package]]
 name = "postgres"
-version = "0.19.0"
+version = "0.19.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0f853fba627ed1f21392d329eeb03caf90dce57a65dfbd24274f4c39452ed3bb"
+checksum = "c7871ee579860d8183f542e387b176a25f2656b9fb5211e045397f745a68d1c2"
 dependencies = [
  "bytes",
  "fallible-iterator",
@@ -661,16 +691,16 @@ dependencies = [
 
 [[package]]
 name = "postgres-protocol"
-version = "0.6.0"
+version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70e34ad3dc5c56d036b9418185ee97e14b6766d55c8ccf9dc18302ad4e6371d9"
+checksum = "ff3e0f70d32e20923cabf2df02913be7c1842d4c772db8065c00fcfdd1d1bff3"
 dependencies = [
  "base64",
  "byteorder",
  "bytes",
  "fallible-iterator",
  "hmac",
- "md5",
+ "md-5",
  "memchr",
  "rand",
  "sha2",
@@ -679,9 +709,9 @@ dependencies = [
 
 [[package]]
 name = "postgres-types"
-version = "0.2.0"
+version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5493d9d4613b88b12433aa12890e74e74cd93fdc1e08b7c2aed4768aaae8414c"
+checksum = "430f4131e1b7657b0cd9a2b0c3408d77c9a43a042d300b8c77f981dffcc43a2f"
 dependencies = [
  "bytes",
  "fallible-iterator",
@@ -714,13 +744,61 @@ checksum = "bc881b2c22681370c6a780e47af9840ef841837bc98118431d4e1868bd0c1086"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.24"
+version = "1.0.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
+checksum = "f0d8caf72986c1a598726adc988bb5984792ef84f5ee5aa50209145ee8077038"
 dependencies = [
  "unicode-xid",
 ]
 
+[[package]]
+name = "pyo3"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "338f7f3701e11fd7f76508c91fbcaabc982564bcaf4d1ca7e1574ff2b4778aec"
+dependencies = [
+ "cfg-if",
+ "indoc",
+ "libc",
+ "parking_lot",
+ "paste",
+ "pyo3-build-config",
+ "pyo3-macros",
+ "unindent",
+]
+
+[[package]]
+name = "pyo3-build-config"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dcb2e98cc9ccc83d4f7115c8f925e0057e88c8d324b1bc4c2db4a7270c06ac9d"
+dependencies = [
+ "once_cell",
+]
+
+[[package]]
+name = "pyo3-macros"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cfb8671a42d0ecc4bec8cc107ae96d49292ca20cd1968e09b98af4aafd516adf"
+dependencies = [
+ "pyo3-macros-backend",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "pyo3-macros-backend"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9addf6dc422f05d4949cc0990195ee74fa43e3c3780cc9a1972fe9e7b68a9f48"
+dependencies = [
+ "proc-macro2",
+ "pyo3-build-config",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "quote"
 version = "1.0.9"
@@ -732,9 +810,9 @@ dependencies = [
 
 [[package]]
 name = "rand"
-version = "0.8.3"
+version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ef9e7e66b4468674bfcb0c81af8b7fa0bb154fa9f28eb840da5c447baeb8d7e"
+checksum = "2e7573632e6454cf6b99d7aac4ccca54be06da05aca2ef7423d22d27d4d4bcd8"
 dependencies = [
  "libc",
  "rand_chacha",
@@ -744,9 +822,9 @@ dependencies = [
 
 [[package]]
 name = "rand_chacha"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e12735cf05c9e10bf21534da50a147b924d555dc7a547c42e6bb2d5b6017ae0d"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
 dependencies = [
  "ppv-lite86",
  "rand_core",
@@ -754,27 +832,27 @@ dependencies = [
 
 [[package]]
 name = "rand_core"
-version = "0.6.2"
+version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34cf66eb183df1c5876e2dcf6b13d57340741e8dc255b48e40a26de954d06ae7"
+checksum = "d34f1408f55294453790c48b2f1ebbb1c5b4b7563eb1f418bcfcfdbb06ebb4e7"
 dependencies = [
  "getrandom",
 ]
 
 [[package]]
 name = "rand_hc"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3190ef7066a446f2e7f42e239d161e905420ccab01eb967c9eb27d21b2322a73"
+checksum = "d51e9f596de227fda2ea6c84607f5558e196eeaf43c986b724ba4fb8fdf497e7"
 dependencies = [
  "rand_core",
 ]
 
 [[package]]
 name = "rayon"
-version = "1.5.0"
+version = "1.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8b0d8e0819fadc20c74ea8373106ead0600e3a67ef1fe8da56e39b9ae7275674"
+checksum = "c06aca804d41dbc8ba42dfd964f0d01334eceb64314b9ecf7c5fad5188a06d90"
 dependencies = [
  "autocfg",
  "crossbeam-deque",
@@ -784,9 +862,9 @@ dependencies = [
 
 [[package]]
 name = "rayon-core"
-version = "1.9.0"
+version = "1.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ab346ac5921dc62ffa9f89b7a773907511cdfa5490c572ae9be1be33e8afa4a"
+checksum = "d78120e2c850279833f1dd3582f730c4ab53ed95aeaaaa862a2a5c71b1656d8e"
 dependencies = [
  "crossbeam-channel",
  "crossbeam-deque",
@@ -797,27 +875,27 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.2.5"
+version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94341e4e44e24f6b591b59e47a8a027df12e008d73fd5672dbea9cc22f4507d9"
+checksum = "5ab49abadf3f9e1c4bc499e8845e152ad87d2ad2d30371841171169e9d75feee"
 dependencies = [
  "bitflags",
 ]
 
 [[package]]
 name = "regex"
-version = "1.4.5"
+version = "1.5.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "957056ecddbeba1b26965114e191d2e8589ce74db242b6ea25fc4062427a5c19"
+checksum = "d07a8629359eb56f1e2fb1652bb04212c072a87ba68546a04065d525673ac461"
 dependencies = [
  "regex-syntax",
 ]
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.23"
+version = "0.6.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "24d5f089152e60f62d28b835fbff2cd2e8dc0baf1ac13343bef92ab7eed84548"
+checksum = "f497285884f3fcff424ffc933e56d7cbca511def0c9831a7f9b5f6153e3cc89b"
 
 [[package]]
 name = "scopeguard"
@@ -827,34 +905,34 @@ checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
 [[package]]
 name = "serde"
-version = "1.0.124"
+version = "1.0.126"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd761ff957cb2a45fbb9ab3da6512de9de55872866160b23c25f1a841e99d29f"
+checksum = "ec7505abeacaec74ae4778d9d9328fe5a5d04253220a85c4ee022239fc996d03"
 
 [[package]]
 name = "sha2"
-version = "0.9.3"
+version = "0.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa827a14b29ab7f44778d14a88d3cb76e949c45083f7dbfa507d0cb699dc12de"
+checksum = "b362ae5752fd2137731f9fa25fd4d9058af34666ca1966fb969119cc35719f12"
 dependencies = [
  "block-buffer",
  "cfg-if",
- "cpuid-bool",
+ "cpufeatures",
  "digest",
  "opaque-debug",
 ]
 
 [[package]]
 name = "siphasher"
-version = "0.3.3"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa8f3741c7372e75519bd9346068370c9cdaabcc1f9599cbcf2a2719352286b7"
+checksum = "cbce6d4507c7e4a3962091436e56e95290cb71fa302d0d270e32130b75fbff27"
 
 [[package]]
 name = "slab"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
+checksum = "f173ac3d1a7e3b28003f40de0b5ce7fe2710f9b9dc3fc38664cebee46b3b6527"
 
 [[package]]
 name = "smallvec"
@@ -864,11 +942,10 @@ checksum = "fe0f37c9e8f3c5a4a66ad655a93c74daac4ad00c441533bf5c6e7990bb42604e"
 
 [[package]]
 name = "socket2"
-version = "0.3.19"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "122e570113d28d773067fab24266b66753f6ea915758651696b6e35e49f88d6e"
+checksum = "9e3dfc207c526015c632472a77be09cf1b6e46866581aecae5cc38fb4235dea2"
 dependencies = [
- "cfg-if",
  "libc",
  "winapi",
 ]
@@ -915,9 +992,9 @@ checksum = "1e81da0851ada1f3e9d4312c704aa4f8806f0f9d69faaf8df2f3464b4a9437c2"
 
 [[package]]
 name = "syn"
-version = "1.0.64"
+version = "1.0.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fd9d1e9976102a03c542daa2eff1b43f9d72306342f3f8b3ed5fb8908195d6f"
+checksum = "f71489ff30030d2ae598524f61326b902466f72a0fb1a8564c001cc63425bcc7"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -925,7 +1002,7 @@ dependencies = [
 ]
 
 [[package]]
-name = "synapse-compress-state"
+name = "synapse_compress_state"
 version = "0.1.0"
 dependencies = [
  "clap",
@@ -934,6 +1011,7 @@ dependencies = [
  "openssl",
  "postgres",
  "postgres-openssl",
+ "pyo3",
  "rand",
  "rayon",
  "state-map",
@@ -942,9 +1020,9 @@ dependencies = [
 
 [[package]]
 name = "terminal_size"
-version = "0.1.16"
+version = "0.1.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86ca8ced750734db02076f44132d802af0b33b09942331f4459dde8636fd2406"
+checksum = "633c1a546cee861a1a6d0dc69ebeca693bf4296661ba7852b9d21d159e0506df"
 dependencies = [
  "libc",
  "winapi",
@@ -961,9 +1039,9 @@ dependencies = [
 
 [[package]]
 name = "tinyvec"
-version = "1.1.1"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "317cca572a0e89c3ce0ca1f1bdc9369547fe318a683418e42ac8f59d14701023"
+checksum = "5b5220f05bb7de7f3f53c7c065e1199b3172696fe2db9f9c4d8ad9b4ee74c342"
 dependencies = [
  "tinyvec_macros",
 ]
@@ -976,9 +1054,9 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "tokio"
-version = "1.3.0"
+version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d56477f6ed99e10225f38f9f75f872f29b8b8bd8c0b946f63345bb144e9eeda"
+checksum = "98c8b05dc14c75ea83d63dd391100353789f5f24b8b3866542a5e85c8be8e985"
 dependencies = [
  "autocfg",
  "bytes",
@@ -986,25 +1064,26 @@ dependencies = [
  "memchr",
  "mio",
  "pin-project-lite",
+ "winapi",
 ]
 
 [[package]]
 name = "tokio-openssl"
-version = "0.6.1"
+version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac1bec5c0a4aa71e3459802c7a12e8912c2091ce2151004f9ce95cc5d1c6124e"
+checksum = "f24cddc8445a4dc8359cdd9e91c19d544fc95f672e32afe8945852b9381a09fe"
 dependencies = [
  "futures",
  "openssl",
- "pin-project",
+ "openssl-sys",
  "tokio",
 ]
 
 [[package]]
 name = "tokio-postgres"
-version = "0.7.0"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1cc9f82c2bfb06a33dd0dfb44b07ca98fe72df19e681d80c78d05a1bac2138e2"
+checksum = "2d2b1383c7e4fb9a09e292c7c6afb7da54418d53b045f1c1fac7a911411a2b8b"
 dependencies = [
  "async-trait",
  "byteorder",
@@ -1025,9 +1104,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-util"
-version = "0.6.4"
+version = "0.6.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec31e5cc6b46e653cf57762f36f71d5e6386391d88a72fd6db4508f8f676fb29"
+checksum = "1caa0b0c8d94a049db56b5acf8cba99dc0623aab1b26d5b5f5e2d945846b3592"
 dependencies = [
  "bytes",
  "futures-core",
@@ -1045,18 +1124,18 @@ checksum = "879f6906492a7cd215bfa4cf595b600146ccfac0c79bcbd1f3000162af5e8b06"
 
 [[package]]
 name = "unicode-bidi"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
+checksum = "eeb8be209bb1c96b7c177c7420d26e04eccacb0eeae6b980e35fcb74678107e0"
 dependencies = [
  "matches",
 ]
 
 [[package]]
 name = "unicode-normalization"
-version = "0.1.17"
+version = "0.1.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07fbfce1c8a97d547e8b5334978438d9d6ec8c20e38f56d4a4374d181493eaef"
+checksum = "d54590932941a9e9266f0832deed84ebe1bf2e4c9e4a3554d393d18f5e854bf9"
 dependencies = [
  "tinyvec",
 ]
@@ -1069,15 +1148,21 @@ checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
 
 [[package]]
 name = "unicode-xid"
-version = "0.2.1"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
+checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
+
+[[package]]
+name = "unindent"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f14ee04d9415b52b3aeab06258a3f07093182b88ba0f9b8d203f211a7a7d41c7"
 
 [[package]]
 name = "vcpkg"
-version = "0.2.11"
+version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b00bca6106a5e23f3eee943593759b7fcddb00554332e856d990c893966879fb"
+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
 
 [[package]]
 name = "vec_map"
diff --git a/Cargo.toml b/Cargo.toml
index 3438ed2..6f0977c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,13 +1,13 @@
 [package]
 authors = ["Erik Johnston"]
 description = "A tool to compress some state in a Synapse instance's database"
-name = "synapse-compress-state"
+name = "synapse_compress_state"
 version = "0.1.0"
 edition = "2018"
 
 [dependencies]
 clap = "2.33.0"
-indicatif = "0.15.0"
+indicatif = "0.16.0"
 jemallocator = "0.3.2"
 openssl = "0.10.32"
 postgres = "0.19.0"
@@ -18,3 +18,15 @@ string_cache = "0.8.0"
 
 [dependencies.state-map]
 git = "https://github.com/matrix-org/rust-matrix-state-map"
+
+# Needed for pyo3 support
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[dependencies.pyo3]
+version = "0.14.1"
+features = ["extension-module","abi3-py36"]
+
+[features]
+default = ["jemalloc"]
+jemalloc = []
\ No newline at end of file
diff --git a/README.md b/README.md
index 7c925f3..9edc485 100644
--- a/README.md
+++ b/README.md
@@ -45,7 +45,7 @@ attempts to keep this below 100.
 ## Example usage
 
 ```
-$ synapse-compress-state -p "postgresql://localhost/synapse" -r '!some_room:example.com' -o out.sql -t
+$ synapse_compress_state -p "postgresql://localhost/synapse" -r '!some_room:example.com' -o out.sql -t
 Fetching state from DB for room '!some_room:example.com'...
 Got initial state from database. Checking for any missing state groups...
 Number of state groups: 73904
@@ -60,3 +60,33 @@ New state map matches old one
 # It's finished, so we can now go and rewrite the DB
 $ psql synapse < out.data
 ```
+
+## Using as python library
+
+The compressor can also be built into a python library as it uses PyO3. It can be
+built and installed into the current virtual environment by running `maturin develop`
+
+The following code does exactly the same as the command-line example from above:
+```
+import synapse_compress_state as comp
+
+comp.run_compression(
+  db_url="postgresql://localhost/synapse",
+  room_id="!some_room:example.com",
+  output_file="out.sql",
+  transactions=True
+)
+```
+
+Note: since this library uses Jemalloc, you might get an error of the form:
+```
+ImportError: /[LONG_PATH]/synapse_compress_state.abi3.so: cannot allocate memory in static TLS block
+```
+If this happens then try running the following:
+```
+LD_PATH=/[LONG_PATH]/synapse_compress_state.abi3.so ./my_python_script
+```
+Or just try disabling jemalloc:
+```
+$ maturin develop --cargo-extra-args="--no-default-features"
+```
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..d6b1317
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,4 @@
+[build-system]
+requires = ["maturin>=0.11,<0.12"]
+build-backend = "maturin"
+cargo-extra-args = "--no-default-features"
\ No newline at end of file
diff --git a/src/compressor.rs b/src/compressor.rs
index 859c0a2..77aa189 100644
--- a/src/compressor.rs
+++ b/src/compressor.rs
@@ -23,7 +23,7 @@
 //!
 //! This produces graphs that look roughly like, for two levels:
 //!
-//! ``` ignored
+//! ```ignore
 //! L2 <-------------------- L2 <---------- ...
 //!  ^--- L1 <--- L1 <--- L1  ^--- L1 <--- L1 <--- L1
 //! ```
@@ -182,7 +182,7 @@ impl<'a> Compressor<'a> {
     ///
     /// Returns the state map and the actual base state group (if any) used.
     fn get_delta(&mut self, prev_sg: Option<i64>, sg: i64) -> (StateMap<Atom>, Option<i64>) {
-        let state_map = collapse_state_maps(&self.original_state_map, sg);
+        let state_map = collapse_state_maps(self.original_state_map, sg);
 
         let mut prev_sg = if let Some(prev_sg) = prev_sg {
             prev_sg
@@ -194,7 +194,7 @@ impl<'a> Compressor<'a> {
         // a valid base for the state group.
         let mut prev_state_map;
         'outer: loop {
-            prev_state_map = collapse_state_maps(&self.original_state_map, prev_sg);
+            prev_state_map = collapse_state_maps(self.original_state_map, prev_sg);
             for (t, s) in prev_state_map.keys() {
                 if !state_map.contains_key(t, s) {
                     // This is not a valid base as it contains key the new state
diff --git a/src/lib.rs b/src/lib.rs
index 4a7306b..c380f15 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -16,12 +16,13 @@
 //! Synapse instance's database. Specifically, it aims to reduce the number of
 //! rows that a given room takes up in the `state_groups_state` table.
 
+use pyo3::{exceptions, prelude::*};
+
+#[cfg(feature = "jemalloc")]
 #[global_allocator]
 static GLOBAL: jemallocator::Jemalloc = jemallocator::Jemalloc;
 
-use clap::{
-    crate_authors, crate_description, crate_name, crate_version, value_t_or_exit, App, Arg,
-};
+use clap::{crate_authors, crate_description, crate_name, crate_version, value_t, App, Arg};
 use indicatif::{ProgressBar, ProgressStyle};
 use rayon::prelude::*;
 use state_map::StateMap;
@@ -142,9 +143,9 @@ impl Config {
             .value_of("postgres-url")
             .expect("db url should be required");
 
-        let output_file = matches
-            .value_of("output_file")
-            .map(|path| File::create(path).unwrap());
+        let output_file = matches.value_of("output_file").map(|path| {
+            File::create(path).unwrap_or_else(|e| panic!("Unable to create output file: {}", e))
+        });
 
         let room_id = matches
             .value_of("room_id")
@@ -160,7 +161,8 @@ impl Config {
 
         let transactions = matches.is_present("transactions");
 
-        let level_sizes = value_t_or_exit!(matches, "level_sizes", LevelSizes);
+        let level_sizes = value_t!(matches, "level_sizes", LevelSizes)
+            .unwrap_or_else(|e| panic!("Unable to parse level_sizes: {}", e));
 
         Config {
             db_url: String::from(db_url),
@@ -384,8 +386,8 @@ fn check_that_maps_match(
     old_map
         .par_iter() // This uses rayon to run the checks in parallel
         .try_for_each(|(sg, _)| {
-            let expected = collapse_state_maps(&old_map, *sg);
-            let actual = collapse_state_maps(&new_map, *sg);
+            let expected = collapse_state_maps(old_map, *sg);
+            let actual = collapse_state_maps(new_map, *sg);
 
             pb.inc(1);
 
@@ -422,7 +424,7 @@ fn collapse_state_maps(map: &BTreeMap<i64, StateGroupEntry>, state_group: i64) -
 
     for sg in stack.iter().rev() {
         state_map.extend(
-            map[&sg]
+            map[sg]
                 .state_map
                 .iter()
                 .map(|((t, s), e)| ((t, s), e.clone())),
@@ -431,3 +433,92 @@ fn collapse_state_maps(map: &BTreeMap<i64, StateGroupEntry>, state_group: i64) -
 
     state_map
 }
+
+// PyO3 INTERFACE STARTS HERE
+
+impl Config {
+    /// Converts string and bool arguments into a Config struct
+    ///
+    /// This function panics if db_url or room_id are empty strings!
+    pub fn new(
+        db_url: String,
+        room_id: String,
+        output_file: Option<String>,
+        max_state_group: Option<i64>,
+        min_saved_rows: Option<i32>,
+        transactions: bool,
+        level_sizes: String,
+    ) -> Result<Config, String> {
+        let mut output: Option<File> = None;
+        if let Some(file) = output_file {
+            output = match File::create(file) {
+                Ok(f) => Some(f),
+                Err(e) => return Err(format!("Unable to create output file: {}", e)),
+            };
+        }
+        let output_file = output;
+
+        let level_sizes: LevelSizes = match level_sizes.parse() {
+            Ok(l_sizes) => l_sizes,
+            Err(e) => return Err(format!("Unable to parse level_sizes: {}", e)),
+        };
+
+        Ok(Config {
+            db_url,
+            output_file,
+            room_id,
+            max_state_group,
+            min_saved_rows,
+            transactions,
+            level_sizes,
+        })
+    }
+}
+
+/// Access point for python code
+///
+/// Default arguments are equivalent to using the command line tool
+/// No default's are provided for db_url or room_id since these arguments
+/// are compulsory (so that new() act's like parse_arguments())
+#[pyfunction(
+    // db_url has no default
+    // room_id  has no default
+    output_file = "None",
+    max_state_group = "None",
+    min_saved_rows = "None",
+    transactions = false,
+    level_sizes = "String::from(\"100,50,25\")"
+)]
+fn run_compression(
+    db_url: String,
+    room_id: String,
+    output_file: Option<String>,
+    max_state_group: Option<i64>,
+    min_saved_rows: Option<i32>,
+    transactions: bool,
+    level_sizes: String,
+) -> PyResult<()> {
+    let config = Config::new(
+        db_url,
+        room_id,
+        output_file,
+        max_state_group,
+        min_saved_rows,
+        transactions,
+        level_sizes,
+    );
+    match config {
+        Err(e) => Err(PyErr::new::<exceptions::PyException, _>(e)),
+        Ok(config) => {
+            run(config);
+            Ok(())
+        }
+    }
+}
+
+/// Python module - "import synapse_compress_state" to use
+#[pymodule]
+fn synapse_compress_state(_py: Python, m: &PyModule) -> PyResult<()> {
+    m.add_function(wrap_pyfunction!(run_compression, m)?)?;
+    Ok(())
+}