qvm-template: Fix compatibility with Python 3.6
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@ -58,7 +58,7 @@ def parser_gen() -> argparse.ArgumentParser:
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formatter = argparse.ArgumentDefaultsHelpFormatter
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parser_main = argparse.ArgumentParser(description='Qubes Template Manager',
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formatter_class=formatter)
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subparsers = parser_main.add_subparsers(dest='operation', required=True,
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subparsers = parser_main.add_subparsers(dest='operation',
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description='Command to run.')
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def parser_add_command(cmd, help_str):
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@ -1363,6 +1363,9 @@ def main(args: typing.Optional[typing.Sequence[str]] = None,
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"""
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p_args = parser.parse_args(args)
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if not p_args.operation:
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parser.error('An operation needs to be specified.')
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# If the user specified other repo files...
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if len(p_args.repo_files) > 1:
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# ...remove the default entry
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