RustPython · joshuamegnauth54 · May 16, 2026
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
@@ -235,7 +235,6 @@ mac_address = "1.1.3"
 malachite-bigint = "0.9.1"
 malachite-q = "0.9.1"
 malachite-base = "0.9.1"
-maplit = "1.0.2"
 md-5 = "0.10.1"
 memchr = "2.8.0"
 memmap2 = "0.9.10"
@@ -250,7 +249,6 @@ openssl = "0.10.79"
 openssl-sys = "0.9.110"
 openssl-probe = "0.2.1"
 optional = "0.5"
-page_size = "0.6"
 parking_lot = "0.12.3"
 paste = "1.0.15"
 pbkdf2 = "0.12"
@@ -265,7 +263,7 @@ radium = "1.1.1"
 rand = "0.9"
 rand_core = { version = "0.9", features = ["os_rng"] }
 result-like = "0.5.0"
-rustix = { version = "1.1", features = ["event", "system"] }
+rustix = { version = "1.1", features = ["event", "param", "system"] }
 rustls = { version = "0.23.39", default-features = false }
 rustls-native-certs = "0.8"
 rustls-pemfile = "2.2"

diff --git a/crates/derive-impl/Cargo.toml b/crates/derive-impl/Cargo.toml
@@ -16,7 +16,6 @@ rustpython-doc = { workspace = true }
 itertools = { workspace = true }
 syn = { workspace = true, features = ["full", "extra-traits"] }
 
-maplit = { workspace = true }
 proc-macro2 = { workspace = true }
 quote = { workspace = true }
 syn-ext = { workspace = true, features = ["full"] }

diff --git a/crates/derive-impl/src/compile_bytecode.rs b/crates/derive-impl/src/compile_bytecode.rs
@@ -83,12 +83,14 @@ impl CompilationSource {
             CompilationSourceKind::Dir { base, rel_path } => {
                 self.compile_dir(base, &base.join(rel_path), "", mode, compiler)
             }
-            _ => Ok(hashmap! {
-                module_name.to_string() => CompiledModule {
+            _ => Ok(core::iter::once((
+                module_name.to_string(),
+                CompiledModule {
                     code: self.compile_single(mode, module_name, compiler)?,
                     package: false,
                 },
-            }),
+            ))
+            .collect()),
         }
     }
 

diff --git a/crates/derive-impl/src/lib.rs b/crates/derive-impl/src/lib.rs
@@ -4,9 +4,6 @@
 
 extern crate proc_macro;
 
-#[macro_use]
-extern crate maplit;
-
 #[macro_use]
 mod error;
 #[macro_use]

diff --git a/crates/stdlib/Cargo.toml b/crates/stdlib/Cargo.toml
@@ -92,7 +92,7 @@

 # tkinter
 tk-sys = { workspace = true, optional = true }
 tcl-sys = { workspace = true, optional = true }
 widestring = { workspace = true, optional = true }
 chrono.workspace = true

@@ -110,7 +110,6 @@
 # mmap + socket dependencies
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 memmap2 = { workspace = true }
-page_size = { workspace = true }
 gethostname = { workspace = true }
 socket2 = { workspace = true, features = ["all"] }
 dns-lookup = { workspace = true }
@@ -125,8 +124,8 @@
 rustls = { workspace = true, default-features = false, features = ["std", "tls12", "aws_lc_rs"], optional = true }
 rustls-native-certs = { workspace = true, optional = true }
 rustls-pemfile = { workspace = true, optional = true }
 rustls-platform-verifier = { workspace = true, optional = true }
 x509-cert = { workspace = true, features = ["pem", "builder"], optional = true }
 x509-parser = { workspace = true, optional = true }
 der = { workspace = true, optional = true }
 pem-rfc7468 = { workspace = true, features = ["alloc"], optional = true }
@@ -159,6 +158,7 @@
   "Win32_System_Console",
   "Win32_System_IO",
   "Win32_System_Memory",
+  "Win32_System_SystemInformation",
   "Win32_System_Threading"
 ]
 

diff --git a/crates/stdlib/src/mmap.rs b/crates/stdlib/src/mmap.rs
@@ -46,7 +46,10 @@ mod mmap {
             CreateFileMappingW, FILE_MAP_COPY, FILE_MAP_READ, FILE_MAP_WRITE, FlushViewOfFile,
             MapViewOfFile, PAGE_READONLY, PAGE_READWRITE, PAGE_WRITECOPY, UnmapViewOfFile,
         },
-        System::Threading::GetCurrentProcess,
+        System::{
+            SystemInformation::{GetSystemInfo, SYSTEM_INFO},
+            Threading::GetCurrentProcess,
+        },
     };
 
     #[cfg(unix)]
@@ -180,16 +183,48 @@ mod mmap {
     #[pyattr]
     const ACCESS_COPY: u32 = AccessMode::Copy as u32;
 
-    #[cfg(not(target_arch = "wasm32"))]
+    #[cfg(unix)]
     #[pyattr(name = "PAGESIZE", once)]
     fn page_size(_vm: &VirtualMachine) -> usize {
-        page_size::get()
+        rustix::param::page_size()
+    }
+
+    #[cfg(target_arch = "wasm32")]
+    #[pyattr(name = "PAGESIZE", once)]
+    const fn page_size(_vm: &VirtualMachine) -> usize {
+        65536
+    }
+
+    #[cfg(windows)]
+    #[pyattr(name = "PAGESIZE", once)]
+    fn page_size(_vm: &VirtualMachine) -> usize {
+        let mut info = SYSTEM_INFO::default();
+        unsafe {
+            GetSystemInfo(&mut info);
+        }
+        info.dwPageSize as _
     }
 
-    #[cfg(not(target_arch = "wasm32"))]
+    #[cfg(unix)]
+    #[pyattr(name = "ALLOCATIONGRANULARITY", once)]
+    fn granularity(_vm: &VirtualMachine) -> usize {
+        rustix::param::page_size()
+    }
+
+    #[cfg(target_arch = "wasm32")]
+    #[pyattr(name = "ALLOCATIONGRANULARITY", once)]
+    const fn granularity(_vm: &VirtualMachine) -> usize {
+        65536
+    }
+
+    #[cfg(windows)]
     #[pyattr(name = "ALLOCATIONGRANULARITY", once)]
     fn granularity(_vm: &VirtualMachine) -> usize {
-        page_size::get_granularity()
+        let mut info = SYSTEM_INFO::default();
+        unsafe {
+            GetSystemInfo(&mut info);
+        }
+        info.dwAllocationGranularity as _
     }
 
     #[pyattr(name = "error", once)]