Custom marshal enc/decoding impl

Author: coolreader18

Cargo.toml

@@ -9,5 +9,3 @@ edition = "2021"
 rustpython-compiler-core = { path = "core" }
 rustpython-codegen = { path = "codegen" }
 rustpython-parser = { path = "parser" }
-
-thiserror = { workspace = true }

core/Cargo.toml

@@ -8,14 +8,10 @@ repository = "https://github.com/RustPython/RustPython"
 license = "MIT"
 
 [dependencies]
-bincode = { workspace = true }
 bitflags = { workspace = true }
 bstr = { workspace = true }
 itertools = { workspace = true }
-num-bigint = { workspace = true, features = ["serde"] }
-num-complex = { workspace = true, features = ["serde"] }
-num_enum = { workspace = true }
-serde = { workspace = true, features = ["derive"] }
-thiserror = { workspace = true }
+num-bigint = { workspace = true }
+num-complex = { workspace = true }
 
 lz4_flex = "0.9.2"