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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _get_base(self, path):
 """ Get project blueprint """

        base = None

        # Slightly ugly DRY violation for backwards compatibility with old
        # "_base" convention
        if os.path.isdir(os.path.join(path, "_blueprint")):
            base_dir = os.path.join(path, "_blueprint/")
            # Get the blueprint template and register it as a blueprint
            if os.path.exists(os.path.join(base_dir, "blueprint.py")):
                filename, pathname, description = imp.find_module('blueprint', [base_dir])
                base = imp.load_module('blueprint', filename, pathname, description)
                self.blueprint_name = "_blueprint"
            else:
                puts("No _blueprint/blueprint.py file found")
        elif os.path.isdir(os.path.join(path, "_base")):
            puts("Using old '_base' convention")
            base_dir = os.path.join(path, "_base/")
            if os.path.exists(os.path.join(base_dir, "base.py")):
                filename, pathname, description = imp.find_module('base', [base_dir])
                base = imp.load_module('base', filename, pathname, description)
                self.blueprint_name = "_base"
            else:
                puts("No _base/base.py file found")

        if base:
            base.base_dir = base_dir

        if hasattr(base, 'blueprint') and isinstance(base.blueprint, Blueprint):
            self.app.register_blueprint(base.blueprint, site=self)

        return base