Macro py_comp::comp

macro_rules! comp {
    (
        $item_expr: expr;
        for $name: pat in $iterator: expr;
        if $condition: expr $(;)?
    ) => { ... };
    (
        $item_expr: expr;
        for $name: pat in $iterator: expr $(;)?
    ) => { ... };
    (
        $item_expr: expr;
        for $name: pat in $iterator: expr;
        if $condition: expr;
        for $($rest: tt)*
    ) => { ... };
    (
        $item_expr: expr;
        for $name: pat in $iterator: expr;
        for $($rest: tt)*
    ) => { ... };
}

A Python-like lazy generator-expression

For details see module level documentation