Besides the problem, as an entry-level Python back-end dev tasting Django, I can't talk much about this.
Either way, I have experience with other languages and I don't find this extremely hard. I think what complicated the scenario was trying to get beyond requirements with front-end.
Sharing the private conversation was not right though I beneficiated from the feedback provided by the CTO.
I wish the best of luck for you in future applications, but I also understand the company due to the reason why they are so cautious when recruiting.
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