# [Python 2], 34 bytes

<!-- language-all: lang-python -->

    lambda n:range(1,n,2)+range(0,n,2)

[Try it online!][TIO-jh52cvzv]

[Python 2]: https://docs.python.org/2/
[TIO-jh52cvzv]: https://tio.run/##K6gsycjPM/qfZhvzPycxNyklUSHPqigxLz1Vw1AnT8dIUxvCMQBz/qflFynkKWTmKUBETXQMDTStuDgLijLzShTydBTSNPI0/wMA "Python 2 – Try It Online"