RustPython
diff --git a/‎common/src/lib.rs
Lines changed: 2 additions & 0 deletions b/‎common/src/lib.rs
Lines changed: 2 additions & 0 deletions
diff --git a/‎vm/src/builtins/complex.rs
Lines changed: 14 additions & 1 deletion b/‎vm/src/builtins/complex.rs
Lines changed: 14 additions & 1 deletion
diff --git a/‎wasm/lib/src/browser_module.rs
Lines changed: 6 additions & 6 deletions b/‎wasm/lib/src/browser_module.rs
Lines changed: 6 additions & 6 deletions
@@ -1,5 +1,7 @@
 //! A crate to hold types and functions common to all rustpython components.
 
+#![cfg_attr(target_os = "redox", feature(byte_slice_trim_ascii))]
+
 #[macro_use]
 mod macros;
 pub use macros::*;
 
@@ -131,14 +131,27 @@ fn inner_pow(v1: Complex64, v2: Complex64, vm: &VirtualMachine) -> PyResult<Comp
         };
     }
 
-    let ans = v1.powc(v2);
+    let ans = powc(v1, v2);
     if ans.is_infinite() && !(v1.is_infinite() || v2.is_infinite()) {
         Err(vm.new_overflow_error("complex exponentiation overflow".to_owned()))
     } else {
         Ok(ans)
     }
 }
 
+// num-complex changed their powc() implementation in 0.4.4, making it incompatible
+// with what the regression tests expect. this is that old formula.
+fn powc(a: Complex64, exp: Complex64) -> Complex64 {
+    let (r, theta) = a.to_polar();
+    if r.is_zero() {
+        return Complex64::new(r, r);
+    }
+    Complex64::from_polar(
+        r.powf(exp.re) * (-exp.im * theta).exp(),
+        exp.re * theta + exp.im * r.ln(),
+    )
+}
+
 impl Constructor for PyComplex {
     type Args = ComplexArgs;
 
 
@@ -70,15 +70,15 @@ mod _browser {
             None => FetchResponseFormat::Text,
         };
 
-        let mut opts = web_sys::RequestInit::new();
+        let opts = web_sys::RequestInit::new();
 
         match method {
-            Some(s) => opts.method(s.as_str()),
-            None => opts.method("GET"),
+            Some(s) => opts.set_method(s.as_str()),
+            None => opts.set_method("GET"),
         };
 
         if let Some(body) = body {
-            opts.body(Some(&convert::py_to_js(vm, body)));
+            opts.set_body(&convert::py_to_js(vm, body));
         }
 
         let request = web_sys::Request::new_with_str_and_init(url.as_str(), &opts)
@@ -225,8 +225,8 @@ mod _browser {
     fn load_module(module: PyStrRef, path: PyStrRef, vm: &VirtualMachine) -> PyResult {
         let weak_vm = weak_vm(vm);
 
-        let mut opts = web_sys::RequestInit::new();
-        opts.method("GET");
+        let opts = web_sys::RequestInit::new();
+        opts.set_method("GET");
 
         let request = web_sys::Request::new_with_str_and_init(path.as_str(), &opts)
             .map_err(|err| convert::js_py_typeerror(vm, err))?;