error-handling Archives

What is the difference between Swift 2.0 do-try-catch and regular Java/C#/C++ exceptions

January 15, 2021 Odhran Miss

Question or problem in the Swift programming language: It seems that Swift 2.0 has changed from traditional ObjC (NSError returning) and Swift 1.X (Success/Failure optionals) conventions of runtime error handling, to something that looks very similar to exception handling in languages like Java/C#/C++/etc.

Python is a powerful general-purpose programming language.

Hide traceback unless a debug flag is set

January 15, 2021 Aba Tayler

Question or problem about Python programming: What is the idiomatic python way to hide traceback errors unless a verbose or debug flag is set?

Catch multiple errorTypes?

January 13, 2021 Bell Jacquise

Question or problem in the Swift programming language: I’m looking for a way to catch multiple types of errors in a catch. I’ve tried fallthrough and the comma separated style from a switch statement and neither works. The docs say nothing about catching multiple but pattern 1. It’s not clear to me which of the […]

Functions Defined The core of extensible programming is defining functions. Python allows mandatory and optional arguments, keyword arguments, and even arbitrary argument lists.

How can I ignore ValueError when I try to remove an element from a list?

January 13, 2021 Odhran Miss

Question or problem about Python programming: How can I ignore the “not in list” error message if I call a.remove(x) when x is not present in list a?

Returning API Error Messages with Python and Flask

January 12, 2021 Ollie MC

Question or problem about Python programming: I am designing a RESTful API using Python and Flask. As expected, the API needs to receive an API request and return data if all goes well, but in the instance of an error, it needs to fail softly and return the proper error. I typically raise exceptions when […]

Python Multiprocessing: Handling Child Errors in Parent

January 11, 2021 Simon Abital

Question or problem about Python programming: I am currently playing around with multiprocessing and queues. I have written a piece of code to export data from mongoDB, map it into a relational (flat) structure, convert all values to string and insert them into mysql.

Tag: error-handling

What is the difference between Swift 2.0 do-try-catch and regular Java/C#/C++ exceptions

Hide traceback unless a debug flag is set

Catch multiple errorTypes?

Python Multiprocessing: Handling Child Errors in Parent

NSError, Swift, and nullability

Strange error when map is removed from view in app

How to get userInfo from NSError in catch clause