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Fix py_freeze! to run library with __main__ without __init__ #4581

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Fix py_freeze! to run library with __main__ without __init__ #4581

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11 changes: 11 additions & 0 deletions derive-impl/src/compile_bytecode.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -167,6 +167,7 @@ impl CompilationSource {
} else if file_name.ends_with(".py") {
let stem = path.file_stem().unwrap().to_str().unwrap();
let is_init = stem == "__init__";
let is_main = stem == "__main__";
let module_name = if is_init {
parent.clone()
} else if parent.is_empty() {
Expand Down Expand Up @@ -215,6 +216,16 @@ impl CompilationSource {
Err(e) => return Err(e),
};

if is_main && !code_map.contains_key(&parent) {
// FIXME: the parent module doesn't need to be a full module copy.
code_map.insert(
parent.clone(),
FrozenModule {
code: code.clone(),
package: true,
},
);
}
code_map.insert(
module_name,
FrozenModule {
Expand Down