Fix RustExtension.install_script

examples/hello-world/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "hello-world"
+version = "0.1.0"
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

examples/hello-world/MANIFEST.in

@@ -0,0 +1,2 @@
+include Cargo.toml
+recursive-include src *

examples/hello-world/setup.py

@@ -0,0 +1,12 @@
+from setuptools import setup
+from setuptools_rust import Binding, RustExtension
+
+setup(
+    name="hello-world",
+    version="1.0",
+    rust_extensions=[
+        RustExtension("hello_world.hello_world", binding=Binding.Exec, script=True)
+    ],
+    # rust extensions are not zip safe, just like C-extensions.
+    zip_safe=False,
+)

examples/hello-world/src/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}

examples/hello-world/tox.ini

@@ -0,0 +1,10 @@
+[tox]
+requires =
+    setuptools-rust @ file://{toxinidir}/../../
+
+[testenv]
+description = Run the unit tests under {basepython}
+deps =
+    setuptools-rust @ file://{toxinidir}/../../
+commands = hello_world {posargs}
+passenv = *

setuptools_rust/build.py

@@ -386,11 +386,12 @@ def install_extension(self, ext: RustExtension, dylib_paths):
                 # remove python3 extension (i.e. cpython-36m)
                 ext_path, _ = os.path.splitext(ext_path)
 
+                os.makedirs(os.path.dirname(ext_path), exist_ok=True)
                 ext.install_script(ext_path)
             else:
                 ext_path = self.get_dylib_ext_path(ext, target_fname)
+                os.makedirs(os.path.dirname(ext_path), exist_ok=True)
 
-            os.makedirs(os.path.dirname(ext_path), exist_ok=True)
             shutil.copyfile(dylib_path, ext_path)
 
             if sys.platform != "win32" and not debug_build:

setuptools_rust/extension.py

@@ -184,7 +184,7 @@ def install_script(self, ext_path):
             dirname, name = os.path.split(ext_path)
             file = os.path.join(dirname, "_gen_%s.py" % name)
             with open(file, "w") as f:
-                f.write(TMPL.format({"name": name}))
+                f.write(TMPL.format(name=name))
 
 
 TMPL = """