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Merge pull request #22 from gentoo90/call-example 

Add an example of calling a python function from rust
This commit is contained in:
Daniel Grunwald 2015-08-02 16:35:11 +02:00
parent a884ee945c a785ba87a9
commit 85b5de71f2
3 changed files with 34 additions and 14 deletions
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15
README.md
View File

@ -28,13 +28,20 @@ Example program displaying the value of `sys.version`:
extern crate cpython;
use cpython::{PythonObject, Python};
use cpython::ObjectProtocol; //for call method
fn main() {
let gil_guard = Python::acquire_gil();
let py = gil_guard.python();
let gil = Python::acquire_gil();
let py = gil.python();
let sys = py.import("sys").unwrap();
let version = sys.get("version").unwrap().extract::<String>().unwrap();
println!("Hello Python {}", version);
let version: String = sys.get("version").unwrap().extract().unwrap();
let os = py.import("os").unwrap();
let getenv = os.get("getenv").unwrap();
let user: String = getenv.call(("USER",), None).unwrap().extract().unwrap();
println!("Hello {}, I'm Python {}", user, version);
}
```

12
examples/hello.rs
View File

@ -1,12 +1,18 @@
extern crate cpython;
use cpython::{PythonObject, Python};
use cpython::ObjectProtocol; //for call method
fn main() {
let gil = Python::acquire_gil();
let py = gil.python();
let sys = py.import("sys").unwrap();
let version: String = sys.get("version").unwrap().extract().unwrap();
println!("Hello Python {}", version);
}
let os = py.import("os").unwrap();
let getenv = os.get("getenv").unwrap();
let user: String = getenv.call(("USER",), None).unwrap().extract().unwrap();
println!("Hello {}, I'm Python {}", user, version);
}

21
src/lib.rs
View File

@ -62,13 +62,20 @@
//! extern crate cpython;
//!
//! use cpython::{PythonObject, Python};
//!
//! use cpython::ObjectProtocol; //for call method
//!
//! fn main() {
//! let gil_guard = Python::acquire_gil();
//! let py = gil_guard.python();
//! let gil = Python::acquire_gil();
//! let py = gil.python();
//!
//! let sys = py.import("sys").unwrap();
//! let version = sys.get("version").unwrap().extract::<String>().unwrap();
//! println!("Hello Python {}", version);
//! let version: String = sys.get("version").unwrap().extract().unwrap();
//!
//! let os = py.import("os").unwrap();
//! let getenv = os.get("getenv").unwrap();
//! let user: String = getenv.call(("USER",), None).unwrap().extract().unwrap();
//!
//! println!("Hello {}, I'm Python {}", user, version);
//! }
//! ```
@ -168,7 +175,7 @@ pub mod _detail {
/// try!(m.add("run", py_fn!(run)));
/// Ok(())
/// });
///
///
/// fn run<'p>(py: Python<'p>, args: &PyTuple<'p>) -> PyResult<'p, PyObject<'p>> {
/// println!("Rust says: Hello Python!");
/// Ok(py.None())
@ -187,7 +194,7 @@ pub mod _detail {
/// >>> example.run()
/// Rust says: Hello Python!
/// ```
///
///
#[macro_export]
#[cfg(feature="python27-sys")]
macro_rules! py_module_initializer {