Rustup to 1.22.0-nightly 2017-09-30

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "pyo3"
-version = "0.2.1"
+version = "0.2.2-dev"
 description = "Bindings to Python interpreter"
 authors = ["PyO3 Project and Contributors"]
 readme = "README.md"

build.rs

@@ -10,8 +10,8 @@ use regex::Regex;
 use version_check::{supports_features, is_min_version, is_min_date};
 
 // Specifies the minimum nightly version needed to compile pyo3.
-const MIN_DATE: &'static str = "2017-07-20";
-const MIN_VERSION: &'static str = "1.20.0-nightly";
+const MIN_DATE: &'static str = "2017-09-30";
+const MIN_VERSION: &'static str = "1.22.0-nightly";
 
 #[derive(Debug)]
 struct PythonVersion {

src/objects/boolobject.rs

@@ -59,7 +59,7 @@ impl IntoPyObject for bool {
 ///
 /// Fails with `TypeError` if the input is not a Python `bool`.
 pyobject_extract!(obj to bool => {
-    Ok(PyBool::try_from(obj)?.is_true())
+    Ok(<PyBool as PyTryFrom>::try_from(obj)?.is_true())
 });
 
 

src/objects/stringutils.rs

@@ -66,7 +66,7 @@ impl<'source> ::FromPyObject<'source> for Cow<'source, str>
 /// Allows extracting strings from Python objects.
 /// Accepts Python `str` and `unicode` objects.
 pyobject_extract!(obj to String => {
-    PyString::try_from(obj)?.to_string().map(Cow::into_owned)
+    <PyString as PyTryFrom>::try_from(obj)?.to_string().map(Cow::into_owned)
 });
 
 impl RefFromPyObject for str {