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Merge pull request #620 from namuyan/master 

check python interpreter by --version option
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Yuji Kanagawa 2019-10-12 17:39:49 +09:00 committed by GitHub
parent e6ad49b6bf 91b3231038
commit 77f8cad65f
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1 changed files with 9 additions and 4 deletions
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13
build.rs
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@ -25,11 +25,16 @@ const MIN_VERSION: &'static str = "1.37.0-nightly";
lazy_static! { lazy_static! {
static ref PYTHON_INTERPRETER: &'static str = { static ref PYTHON_INTERPRETER: &'static str = {
["python3", "python"] ["python", "python3"]
.iter() .iter()
.map(|bin| (bin, Command::new(bin).spawn())) .find(|bin| {
.find(|(_, r)| r.is_ok()) if let Ok(out) = Command::new(bin).arg("--version").output() {
.map(|(bin, _)| bin) // begin with `Python 3.X.X :: additional info`
out.stdout.starts_with(b"Python 3") || out.stderr.starts_with(b"Python 3")
} else {
false
}
})
.expect("Python 3.x interpreter not found") .expect("Python 3.x interpreter not found")
}; };
} }