The provided Python code imports two functions from a module and defines a decorator function called tryexcept that wraps other functions with a try-except block. The weave function is used to apply the tryexcept decorator to the combine_to_dictionary and combine_list_strings functions, adding a safety feature that catches errors and returns None instead of crashing the program. This code could be useful in a larger software architecture where these aspects are applied to different functions to handle exceptions in a consistent and centralized manner.
Summarized list of the key points from the provided code:
combine_list_strings and combine_to_dictionary, from a specific module.tryexcept, which wraps other functions with a try-except block to handle potential errors.@Aspect decorator to mark tryexcept as a decorator. Decorators are used to modify how functions work.weave function is used to apply the tryexcept decorator to the combine_to_dictionary and combine_list_strings functions.tryexcept decorator, these wrapped functions will have a protective layer that catches errors and prevents crashes by returning None in case of an error.In simple terms, this code adds a safety feature to the combine_list_strings and combine_to_dictionary functions. This safety feature makes sure that if anything goes wrong when these functions are used, the program won't crash completely. Instead, it will handle the error gracefully and return a special value (None) to indicate that something went wrong.
from pyprojecttools.utilities.listtools import (
combine_list_strings,
combine_to_dictionary,
)
# ANCHOR - temporary helper functions
@Aspect
def tryexcept(func):
def wrapper(*args, **kwargs):
try:
result = func(*args, **kwargs)
except:
result = None
return result
return wrapper
# ANCHOR - aspects
weave(tryexcept, combine_to_dictionary)
weave(tryexcept, combine_list_strings)
The provided code is written in Python and imports two functions, combine_list_strings and combine_to_dictionary, from the pyprojecttools.utilities.listtools module. Additionally, it defines a decorator @Aspect and a decorator function tryexcept.
The tryexcept decorator function is used to wrap other functions with a try-except block. This can be useful for handling exceptions and returning None in case an exception occurs within the wrapped function. The weave function is used to apply the tryexcept decorator to the combine_to_dictionary and combine_list_strings functions, essentially adding a try-except block around the execution of these functions.
A possible use case of this code is in a larger software architecture where these aspects are applied to different functions to handle exceptions in a consistent and centralized manner.
Here is a more detailed walkthrough of the code:
The code imports two functions combine_list_strings and combine_to_dictionary from the pyprojecttools.utilities.listtools module. These functions may be used to manipulate lists, strings, and dictionaries.
tryexceptThe tryexcept function is a decorator function that wraps other functions with a try-except block. The decorator function takes a function func as an argument and returns a new function wrapper that wraps func with a try-except block.
@Aspect decorator