Those other people your copying your argument from likely only had jobs doing Java or C# and they did some python scripts on the side and came to their conclusions like that. I have extensive experience for production work in both and I can assure you my conclusions are much more nuanced.

Python and java stack up pretty similarly in my experience. There's no hard red flags that make either language a nightmare to use when compared to the other. People panic about runtime errors, but like I said those errors happen anyway.

Python does however have a slight edge in the fact that it promotes a more humane style of coding by not enforcing the oop style. Java programmers on the otherhand are herded into doing oop so you have all kinds of service objects with dependency injection and mutating state everywhere. So what happens is in Java you tend to get more complex code, while python code can be more straightforward as long as the programmer doesn't migrate their oop design patterns over to python.

That's the difference between the two in my personal experience. You're mostly likely thinking about types. My experience is that those types are not that important, but either way, modern python with external type checkers actually has a type system that is more powerful then Java or C#. So in modern times there is no argument. Python wins.

But prior to that new python type system my personal anecdotal experience is more relevant and accurate then other people's given my background in both Java and python And C++. Types aren't that important period. They are certainly better then no types but any practical contribution to safety is minimal.