diff --git a/.gitignore b/.gitignore
index 29ab927..cf6ca89 100644
--- a/.gitignore
+++ b/.gitignore
@@ -19,7 +19,6 @@ dist/
 eggs/
 lib/
 lib64/
-lib64
 parts/
 sdist/
 var/
@@ -29,7 +28,6 @@ venv/
 *.egg-info/
 .installed.cfg
 *.egg
-pyvenv.cfg
 
 # Installer logs
 pip-log.txt
diff --git a/Cargo.lock b/Cargo.lock
index a3a00a4..f67e630 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -8,23 +8,23 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
-[[package]]
-name = "heck"
-version = "0.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
-
 [[package]]
 name = "indoc"
-version = "2.0.5"
+version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b248f5224d1d606005e02c97f5aa4e88eeb230488bcc03bc9ca4d7991399f2b5"
+checksum = "bfa799dd5ed20a7e349f3b4639aa80d74549c81716d9ec4f994c9b5815598306"
 
 [[package]]
 name = "libc"
@@ -32,6 +32,16 @@ version = "0.2.149"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a08173bc88b7955d1b3145aa561539096c421ac8debde8cbc3612ec635fee29b"
 
+[[package]]
+name = "lock_api"
+version = "0.4.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c168f8615b12bc01f9c17e2eb0cc07dcae1940121185446edc3744920e8ef45"
+dependencies = [
+ "autocfg",
+ "scopeguard",
+]
+
 [[package]]
 name = "memoffset"
 version = "0.9.0"
@@ -48,32 +58,48 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
 
 [[package]]
-name = "portable-atomic"
-version = "1.10.0"
+name = "parking_lot"
+version = "0.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "280dc24453071f1b63954171985a0b0d30058d287960968b9b2aca264c8d4ee6"
+checksum = "3742b2c103b9f06bc9fff0a37ff4912935851bee6d36f3c02bcc755bcfec228f"
+dependencies = [
+ "lock_api",
+ "parking_lot_core",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.9.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c42a9226546d68acdd9c0a280d17ce19bfe27a46bf68784e4066115788d008e"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "redox_syscall",
+ "smallvec",
+ "windows-targets",
+]
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.92"
+version = "1.0.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37d3544b3f2748c54e147655edb5025752e2303145b5aefb3c3ea2c78b973bb0"
+checksum = "134c189feb4956b20f6f547d2cf727d4c0fe06722b20a0eec87ed445a97f92da"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "pyo3"
-version = "0.23.3"
+version = "0.19.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e484fd2c8b4cb67ab05a318f1fd6fa8f199fcc30819f08f07d200809dba26c15"
+checksum = "e681a6cfdc4adcc93b4d3cf993749a4552018ee0a9b65fc0ccfad74352c72a38"
 dependencies = [
  "cfg-if",
  "indoc",
  "libc",
  "memoffset",
- "once_cell",
- "portable-atomic",
+ "parking_lot",
  "pyo3-build-config",
  "pyo3-ffi",
  "pyo3-macros",
@@ -82,9 +108,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.23.3"
+version = "0.19.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc0e0469a84f208e20044b98965e1561028180219e35352a2afaf2b942beff3b"
+checksum = "076c73d0bc438f7a4ef6fdd0c3bb4732149136abd952b110ac93e4edb13a6ba5"
 dependencies = [
  "once_cell",
  "target-lexicon",
@@ -92,9 +118,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-ffi"
-version = "0.23.3"
+version = "0.19.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb1547a7f9966f6f1a0f0227564a9945fe36b90da5a93b3933fc3dc03fae372d"
+checksum = "e53cee42e77ebe256066ba8aa77eff722b3bb91f3419177cf4cd0f304d3284d9"
 dependencies = [
  "libc",
  "pyo3-build-config",
@@ -102,9 +128,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros"
-version = "0.23.3"
+version = "0.19.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fdb6da8ec6fa5cedd1626c886fc8749bdcbb09424a86461eb8cdf096b7c33257"
+checksum = "dfeb4c99597e136528c6dd7d5e3de5434d1ceaf487436a3f03b2d56b6fc9efd1"
 dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
@@ -114,31 +140,50 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros-backend"
-version = "0.23.3"
+version = "0.19.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38a385202ff5a92791168b1136afae5059d3ac118457bb7bc304c197c2d33e7d"
+checksum = "947dc12175c254889edc0c02e399476c2f652b4b9ebd123aa655c224de259536"
 dependencies = [
- "heck",
  "proc-macro2",
- "pyo3-build-config",
  "quote",
  "syn",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.37"
+version = "1.0.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5b9d34b8991d19d98081b46eacdd8eb58c6f2b201139f7c5f643cc155a633af"
+checksum = "5267fca4496028628a95160fc423a33e8b2e6af8a5302579e322e4b520293cae"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
-name = "syn"
-version = "2.0.90"
+name = "redox_syscall"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "919d3b74a5dd0ccd15aeb8f93e7006bd9e14c295087c9896a110f490752bcf31"
+checksum = "4722d768eff46b75989dd134e5c353f0d6296e5aaa3132e776cbdb56be7731aa"
+dependencies = [
+ "bitflags",
+]
+
+[[package]]
+name = "scopeguard"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
+
+[[package]]
+name = "smallvec"
+version = "1.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "942b4a808e05215192e39f4ab80813e599068285906cc91aa64f923db842bd5a"
+
+[[package]]
+name = "syn"
+version = "1.0.109"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -147,9 +192,9 @@ dependencies = [
 
 [[package]]
 name = "target-lexicon"
-version = "0.12.16"
+version = "0.12.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "61c41af27dd6d1e27b1b16b489db798443478cef1f06a660c96db617ba5de3b1"
+checksum = "14c39fd04924ca3a864207c66fc2cd7d22d7c016007f9ce846cbb9326331930a"
 
 [[package]]
 name = "tictoc"
@@ -166,6 +211,63 @@ checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
 
 [[package]]
 name = "unindent"
-version = "0.2.3"
+version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c7de7d73e1754487cb58364ee906a499937a0dfabd86bcb980fa99ec8c8fa2ce"
+checksum = "e1766d682d402817b5ac4490b3c3002d91dfa0d22812f341609f97b08757359c"
+
+[[package]]
+name = "windows-targets"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
+dependencies = [
+ "windows_aarch64_gnullvm",
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_gnullvm",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
diff --git a/Cargo.toml b/Cargo.toml
index d03a33d..553dc4a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,4 +9,4 @@ name = "tictoc"
 crate-type = ["cdylib"]
 
 [dependencies]
-pyo3 = "0.23.3"
+pyo3 = "0.19.0"
diff --git a/requirements.txt b/requirements.txt
index a22da45..db9c234 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ charset-normalizer==3.3.2
 coverage==7.3.2
 idna==3.4
 iniconfig==2.0.0
-maturin==1.7.8
+maturin==1.3.1
 packaging==23.2
 pluggy==1.3.0
 pytest==7.4.3
diff --git a/src/lib.rs b/src/lib.rs
index a802ae3..4974904 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,90 +1,92 @@
 use pyo3::prelude::*;
+use std::time::Instant;
+use pyo3::exceptions::PyException;
 
-#[pymodule]
-mod tictoc {
-    use super::*;
-    use std::time::Instant;
-    use pyo3::exceptions::PyException;
-    
-    #[pyclass]
-    #[derive(Clone)]
-    struct Results {
-        #[pyo3(get)]
-        nanos: u128,
-        #[pyo3(get)]
-        micros: u128,
-        #[pyo3(get)]
-        millis: u128,
-        #[pyo3(get)]
-        seconds: f64,
+#[pyclass]
+#[derive(Clone)]
+struct Results {
+    #[pyo3(get)]
+    nanos: u128,
+    #[pyo3(get)]
+    micros: u128,
+    #[pyo3(get)]
+    millis: u128,
+    #[pyo3(get)]
+    seconds: f64,
+}
+
+#[pyclass(module = "tictoc", name = "init")]
+struct Init {
+    time: Instant,
+    #[pyo3(get)]
+    results: Results,
+    status: bool,
+}
+
+#[pymethods]
+impl Init {
+    #[new]
+    fn new() -> Self {
+        let res = Results {
+            nanos: 0,
+            micros: 0,
+            millis: 0,
+            seconds: 0.0,
+        };
+        Init {
+            time: Instant::now(),
+            results: res,
+            status: false,
+        }
     }
-    
-    #[pyclass(name = "init")]
-    pub struct Init {
-        time: Instant,
-        #[pyo3(get)]
-        results: Results,
-        status: bool,
+
+    fn tic(&mut self) {
+        self.time = Instant::now();
+        self.status = true;
     }
-    
-    #[pymethods]
-    impl Init {
-        #[new]
-        fn new() -> Self {
-            let res = Results {
-                nanos: 0,
-                micros: 0,
-                millis: 0,
-                seconds: 0.0,
+
+    fn toc(&mut self) -> PyResult<()> {
+        if self.status == false {
+            Err(PyException::new_err("tic() must be called before toc()"))    
+        } else {       
+            let elapsed_time = self.time.elapsed();
+            self.results = Results {
+                nanos: elapsed_time.as_nanos(),
+                micros: elapsed_time.as_micros(),
+                millis: elapsed_time.as_millis(),
+                seconds: elapsed_time.as_secs_f64(),
             };
-            Init {
-                time: Instant::now(),
-                results: res,
-                status: false,
-            }
+            Ok(())
         }
-    
-        fn tic(&mut self) {
-            self.time = Instant::now();
-            self.status = true;
-        }
-    
-        fn toc(&mut self) -> PyResult<()> {
-            if self.status == false {
-                Err(PyException::new_err("tic() must be called before toc()"))    
-            } else {       
-                let elapsed_time = self.time.elapsed();
-                self.results = Results {
-                    nanos: elapsed_time.as_nanos(),
-                    micros: elapsed_time.as_micros(),
-                    millis: elapsed_time.as_millis(),
-                    seconds: elapsed_time.as_secs_f64(),
-                };
-                Ok(())
-            }
-        }
-    }
-    #[test]
-    fn test_new() {
-        let init = Init::new();
-        assert_eq!(init.results.nanos,0);
-    }
-    
-    #[test]
-    fn test_tic() {
-        let mut init = Init::new();
-        let time1 = init.time;
-        init.tic();
-        let time2 = init.time;
-        assert!(time2 > time1)
-    }
-    
-    #[test]
-    fn test_toc() {
-        let mut init = Init::new();
-        init.tic();
-        println!("{}","test");
-        let _ = init.toc();
-        assert!(init.results.nanos > 0)
     }
 }
+
+#[pymodule]
+fn tictoc(_py: Python<'_>, m: &PyModule) -> PyResult<()> {
+    m.add_class::<Init>()?;
+    Ok(())
+}
+
+#[test]
+fn test_new() {
+    let init = Init::new();
+    assert_eq!(init.results.nanos,0);
+}
+
+#[test]
+fn test_tic() {
+    let mut init = Init::new();
+    let time1 = init.time;
+    init.tic();
+    let time2 = init.time;
+    assert!(time2 > time1)
+}
+
+#[test]
+fn test_toc() {
+    let mut init = Init::new();
+    init.tic();
+    println!("{}","test");
+    let _ = init.toc();
+    assert!(init.results.nanos > 0)
+}
diff --git a/tictoc/__init__.py b/tictoc/__init__.py
deleted file mode 100644
index 170a70b..0000000
--- a/tictoc/__init__.py
+++ /dev/null
@@ -1,9 +0,0 @@
-from .tictoc import *
-
-__doc__ = tictoc.__doc__
-if hasattr(tictoc, "__all__"):
-    __all__ = tictoc.__all__
-
-results = tictoc.init();
-tic = results.tic;
-toc = results.toc;