Remove unneeded extern crate, macro_use, and tidy uses.

crates/misc/py/src/function.rs

@@ -2,14 +2,12 @@
 
 extern crate alloc;
 
-use pyo3::prelude::*;
-use pyo3::types::PyTuple;
-
 use crate::value::{pyobj_to_value, value_to_pyobj};
 use alloc::rc::Rc;
 use core::cell::RefCell;
-
 use cranelift_codegen::ir;
+use pyo3::prelude::*;
+use pyo3::types::PyTuple;
 use wasmtime_interface_types::ModuleData;
 use wasmtime_jit::{Context, InstanceHandle};
 use wasmtime_runtime::Export;

crates/misc/py/src/import.rs

@@ -2,12 +2,12 @@
 
 extern crate alloc;
 
-use pyo3::prelude::*;
-use pyo3::types::{PyAny, PyDict, PyTuple};
-
 use crate::function::Function;
 use crate::memory::Memory;
 use crate::value::{read_value_from, write_value_to};
+use alloc::rc::Rc;
+use core::cell::RefCell;
+use core::cmp;
 use cranelift_codegen::ir::types;
 use cranelift_codegen::ir::{InstBuilder, StackSlotData, StackSlotKind};
 use cranelift_codegen::Context;
@@ -15,16 +15,14 @@ use cranelift_codegen::{binemit, ir, isa};
 use cranelift_entity::{EntityRef, PrimaryMap};
 use cranelift_frontend::{FunctionBuilder, FunctionBuilderContext};
 use cranelift_wasm::{DefinedFuncIndex, FuncIndex};
+use pyo3::prelude::*;
+use pyo3::types::{PyAny, PyDict, PyTuple};
+use std::collections::{HashMap, HashSet};
 use target_lexicon::HOST;
 use wasmtime_environ::{CompiledFunction, Export, Module};
 use wasmtime_jit::CodeMemory;
 use wasmtime_runtime::{Imports, InstanceHandle, VMContext, VMFunctionBody};
 
-use alloc::rc::Rc;
-use core::cell::RefCell;
-use core::cmp;
-use std::collections::{HashMap, HashSet};
-
 struct BoundPyFunction {
     name: String,
     obj: PyObject,

crates/misc/py/src/instance.rs

@@ -2,16 +2,13 @@
 
 extern crate alloc;
 
-use pyo3::prelude::*;
-use pyo3::types::PyDict;
-
 use crate::function::Function;
 use crate::memory::Memory;
 use alloc::rc::Rc;
 use core::cell::RefCell;
-
-use cranelift_codegen::ir;
-use cranelift_codegen::ir::types;
+use cranelift_codegen::ir::{self, types};
+use pyo3::prelude::*;
+use pyo3::types::PyDict;
 use wasmtime_environ::Export;
 use wasmtime_interface_types::ModuleData;
 use wasmtime_jit::{Context, InstanceHandle};

crates/misc/py/src/lib.rs

@@ -1,13 +1,12 @@
-use pyo3::exceptions::Exception;
-use pyo3::prelude::*;
-use pyo3::types::{PyBytes, PyDict, PySet};
-use pyo3::wrap_pyfunction;
-
 use crate::import::into_instance_from_obj;
 use crate::instance::Instance;
 use crate::memory::Memory;
 use crate::module::Module;
 use core::cell::RefCell;
+use pyo3::exceptions::Exception;
+use pyo3::prelude::*;
+use pyo3::types::{PyBytes, PyDict, PySet};
+use pyo3::wrap_pyfunction;
 use std::rc::Rc;
 use wasmtime_interface_types::ModuleData;
 

crates/misc/py/src/memory.rs

@@ -2,17 +2,15 @@
 
 extern crate alloc;
 
+use alloc::rc::Rc;
+use core::cell::RefCell;
+use core::ptr;
 use pyo3::class::PyBufferProtocol;
 use pyo3::exceptions::BufferError;
 use pyo3::ffi;
 use pyo3::prelude::*;
-
-use alloc::rc::Rc;
-use core::cell::RefCell;
-use core::ptr;
 use std::ffi::CStr;
 use std::os::raw::{c_int, c_void};
-
 use wasmtime_environ::MemoryPlan;
 use wasmtime_jit::{Context, InstanceHandle};
 use wasmtime_runtime::{Export, VMMemoryDefinition, VMMemoryImport};

crates/misc/py/src/module.rs

@@ -2,9 +2,8 @@
 
 extern crate alloc;
 
-use pyo3::prelude::*;
-
 use alloc::rc::Rc;
+use pyo3::prelude::*;
 
 #[pyclass]
 pub struct Module {

crates/misc/py/src/value.rs

@@ -1,11 +1,10 @@
 //! Utility functions to handle values conversion between abstractions/targets.
 
-use pyo3::exceptions::Exception;
-use pyo3::prelude::*;
-use pyo3::types::PyAny;
-
 use core::ptr;
 use cranelift_codegen::ir;
+use pyo3::exceptions::Exception;
+use pyo3::prelude::*;
+use pyo3::types::PyAny;
 use wasmtime_interface_types::Value;
 
 pub fn pyobj_to_value(_: Python, p: &PyAny) -> PyResult<Value> {