Module Expr Str FunctionDef arguments args defaults body Expr Str Import alias Return Call AttributeLoad NameLoad attr decorator_list
N/A N/A stuff dealing with incompatibilities between python versions get_platform_system N/A N/A N/A N/A N/A return platform.system
    platform module has many regexp, so importing it is slow...
    import only if required
     N/A platform N/A N/A N/A platform system N/A