Programming in D for Python Programmers
This section is under development, but in the meantime this link presents an independent perspective on D from the perspective of a python programmer:
AdRoll is known for their use of Python elsewhere, but their data scientists use D. According to Andrew Pascoe, senior data scientist at AdRoll, "One of the clearest advantages of using D compared to other typical data science workflows is that it compiles down into machine code. Without an interpreter or virtual machine layer, we can rip through data significantly faster than other tools like a Java hadoop framework, R, or python would allow. But D’s compiler is fast enough that in many cases it can be run as if it were a scripting language....The key thing here that separates D from other efficient languages like the oft-suggested C or C++ is that D frees you to program in the style you feel most comfortable with at the given time". He says that they have found that they "can rapidly prototype new infrastructure and analysis tasks, and when efficiency becomes a core concern, we have the ability to refactor that same code base to squeeze as much performance out as possible".
Python's generators and list comprehensions have been thought to be two of the most difficult concepts to replicate in other languages. For the D solution to the problem solved by Python generators, see D Ranges and lazy evaluation. For list comprehensions, see UFCS.
- Theoretical article on ranges as a development of the iterator concept by the C++ guru, Dr Andrei Alexandrescu
- Introduction to Ranges by Ali Çehreli - Part I
- Introduction to Ranges by Ali Çehreli - Part II
- Introduction to D slices
- std.range structures and functions in the Phobos standard library
- std.algorithm generic functions in Phobos
Parallel programming has become increasingly in focus as we approach the beginning of the end of the free lunch from Moore's Law. D makes multiprocessing and threading as simple as possible, but not simpler: