diff --git a/Cargo.lock b/Cargo.lock
index 9a017ab9c..c8d034270 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -328,18 +328,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "cpython"
-version = "0.7.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3052106c29da7390237bc2310c1928335733b286287754ea85e6093d2495280e"
-dependencies = [
- "libc",
- "num-traits",
- "paste",
- "python3-sys",
-]
-
 [[package]]
 name = "cranelift"
 version = "0.88.2"
@@ -978,6 +966,12 @@ dependencies = [
  "hashbrown",
 ]
 
+[[package]]
+name = "indoc"
+version = "2.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e186cfbae8084e513daff4240b4797e342f988cecda4fb6c939150f96315fd8"
+
 [[package]]
 name = "insta"
 version = "1.33.0"
@@ -1686,13 +1680,64 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fe7765e19fb2ba6fd4373b8d90399f5321683ea7c11b598c6bbaa3a72e9c83b8"
 
 [[package]]
-name = "python3-sys"
-version = "0.7.1"
+name = "pyo3"
+version = "0.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "49f8b50d72fb3015735aa403eebf19bbd72c093bfeeae24ee798be5f2f1aab52"
+checksum = "9a89dc7a5850d0e983be1ec2a463a171d20990487c3cfcd68b5363f1ee3d6fe0"
+dependencies = [
+ "cfg-if",
+ "indoc",
+ "libc",
+ "memoffset 0.9.0",
+ "parking_lot",
+ "pyo3-build-config",
+ "pyo3-ffi",
+ "pyo3-macros",
+ "unindent",
+]
+
+[[package]]
+name = "pyo3-build-config"
+version = "0.20.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07426f0d8fe5a601f26293f300afd1a7b1ed5e78b2a705870c5f30893c5163be"
+dependencies = [
+ "once_cell",
+ "target-lexicon",
+]
+
+[[package]]
+name = "pyo3-ffi"
+version = "0.20.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dbb7dec17e17766b46bca4f1a4215a85006b4c2ecde122076c562dd058da6cf1"
 dependencies = [
  "libc",
- "regex",
+ "pyo3-build-config",
+]
+
+[[package]]
+name = "pyo3-macros"
+version = "0.20.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05f738b4e40d50b5711957f142878cfa0f28e054aa0ebdfc3fd137a843f74ed3"
+dependencies = [
+ "proc-macro2",
+ "pyo3-macros-backend",
+ "quote",
+ "syn 2.0.32",
+]
+
+[[package]]
+name = "pyo3-macros-backend"
+version = "0.20.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fc910d4851847827daf9d6cdd4a823fbdaab5b8818325c5e97a86da79e8881f"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.32",
 ]
 
 [[package]]
@@ -1902,7 +1947,6 @@ dependencies = [
  "atty",
  "cfg-if",
  "clap",
- "cpython",
  "criterion",
  "dirs-next",
  "env_logger",
@@ -1910,7 +1954,7 @@ dependencies = [
  "flamescope",
  "libc",
  "log",
- "python3-sys",
+ "pyo3",
  "rustpython-compiler",
  "rustpython-parser",
  "rustpython-pylib",
@@ -2932,6 +2976,12 @@ dependencies = [
  "time",
 ]
 
+[[package]]
+name = "unindent"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7de7d73e1754487cb58364ee906a499937a0dfabd86bcb980fa99ec8c8fa2ce"
+
 [[package]]
 name = "utf8parse"
 version = "0.2.0"
diff --git a/Cargo.toml b/Cargo.toml
index b7b3db3dc..541a5aa3f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -41,7 +41,6 @@ rustpython-format = { git = "https://github.com/RustPython/Parser.git", rev = "2
 # rustpython-format = { path = "../RustPython-parser/format" }
 
 ahash = "0.8.3"
-anyhow = "1.0.45"
 ascii = "1.0"
 atty = "0.2.14"
 bitflags = "2.4.0"
@@ -118,9 +117,8 @@ libc = { workspace = true }
 rustyline = { workspace = true }
 
 [dev-dependencies]
-cpython = "0.7.0"
-criterion = "0.3.5"
-python3-sys = "0.7.1"
+criterion = { version = "0.3.5", features = ["html_reports"] }
+pyo3 = { version = "0.20.2", features = ["auto-initialize"] }
 
 [[bench]]
 name = "execution"