Analysis of information sources in references of the Wikipedia article "Mojo (programming language)" in English language version.
Mojo is a programming language that is as easy to use as Python but with the performance of C++ and Rust. Furthermore, Mojo provides the ability to leverage the entire Python library ecosystem.
While many other projects now use MLIR, Mojo is the first major language designed expressly for MLIR, which makes Mojo uniquely powerful when writing systems-level code for AI workloads.
All values passed into a Python def function use reference semantics. This means the function can modify mutable objects passed into it and those changes are visible outside the function. However, the behavior is sometimes surprising for the uninitiated, because you can change the object that an argument points to and that change is not visible outside the function. All values passed into a Mojo function use value semantics by default. Compared to Python, this is an important difference: A Mojo def function receives a copy of all arguments: it can modify arguments inside the function, but the changes are not visible outside the function.
All values passed into a Python def function use reference semantics. This means the function can modify mutable objects passed into it and those changes are visible outside the function. However, the behavior is sometimes surprising for the uninitiated, because you can change the object that an argument points to and that change is not visible outside the function. All values passed into a Mojo function use value semantics by default. Compared to Python, this is an important difference: A Mojo def function receives a copy of all arguments: it can modify arguments inside the function, but the changes are not visible outside the function.
