Mastering the Shift: 3 Tips to Transition from Python to Erlang

 








Shifting from Python to Erlang can feel like learning to write with your non-dominant hand. But fear not! With a few tricks up your sleeve, the transition can be smoother. Here are three quick tips to help you navigate from Python to Erlang more easily.  Here are 3 tips help you transition from Python to Erlang.


Tip 1: Understanding Syntax Basics


Python uses whitespace to delineate code blocks, while Erlang punctuation like ; , and .

Python:

def greet(name): 
    print(f'Hello, {name}!')

Erlang:

greet(Name) -> io:fwrite("Hello, ~p!", [Name]).


Tip 2: Getting to Grips with Data Structures


In Python, lists and dictionaries are the most commonly used data structures. Erlang, on the other hand, doesn't have a built-in dictionary data type. Instead, Erlang developers often use key-value lists, maps, or records for similar purposes.

Python:

person = {'name': 'John', 'age': 30}

Erlang:

Person = #{name => 'John', age => 30}.



Tip 3: Mastering Concurrency


Erlang was designed with concurrency in mind. While Python threads are subject to the Global Interpreter Lock (GIL), Erlang's lightweight processes are not.

Python:

import threading  
def print_numbers(): 
    for i in range(10): 
        print(i) 
threading.Thread(target=print_numbers).start()

Erlang:

-module(examples).
-export([threaded_count_to_ten/0]).

threaded_count_to_ten() -> 
  spawn(fun () -> 
    lists:foreach(fun(I) -> 
      io:fwrite("~p~n", [I]) end, lists:seq(1, 10)) end).




These are just a few tips to help you transition from Python to Erlang. As you delve deeper into Erlang, you'll discover more nuances, but remember: the key is to keep practicing and experimenting. Happy coding!

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