Clean Architecture means implementation choices can be revoked.
Ignore the "Dependency Inversion" part of the SOLID design principles at your peril.
Think through at least one alternative design and make sure the API covers more than one data structure.
(Full disclosure. I failed to do this recently. Don't follow …
Some aspects of a problem are superficially binary, perhaps modeled as a boolean value.
Don't be misled. Some aspects of a problem are clearly not binary, and a boolean is wrong. Other aspects may or may not be binary, and a boolean might not be ideal.
Can't get the software to work?
The test cases are places to gather debugging details. Some simple tricks:
I've been struggling to create an accurate emulation of the …
Can't get the software to work?
Stop Staring At It.
Often, there are two problems:
It's essential to stop staring (and hand-wringing) over the code and gather evidence.
This will allow you to challenge your faulty …
Can't get the software to work?
Rewrite it.
Seriously.
It's often faster to pick a new paradigm and start a rewrite than to bang your head against a wall.
Modern languages (like Python) don't require a lot of overhead or boilerplate to start again.
Can't get the object model …
Lets look at my favorite OO-Design problem domain: card games.
We'll compare the design of two games: Cribbage and Canasta.
Why? Because they have three common abstractions: cards, hands, and a score.
Overall the players are dealt cards, form hands, and at some point, accumulate a score. Of course, all …
more ...The back-story. See Coping With Complexity. See https://github.com/cloud-custodian/cel-python for the code base.
Back around May 26, I created this branch. Today -- July 2 -- I've got the tests to pass.
I made mistakes. I spent a lot of time making a some significant mistakes …
The back-story. See Coping With Complexity. See https://github.com/cloud-custodian/cel-python for the code base.
I've reached the point where progress is clearly impossible. A bad decision a few weeks ago has reached it's inevitable conclusion. I've made a terrible mistake. About 1,000 lines of code -- and tons …
more ...I'm struggling with brain cramps trying to understand something my past self wrote. Current me needs to go outside and do something that doesn't involve software or complexity. Sadly, current me is trying to make one small change and it feels like the software has passed out of the realm …
more ...I'm undecided if this goes into the next book. Maybe this is a teaser... And yes, this is a Python to the Rescue story.
I live on a boat. See Red Ranger Blog for details. What's essential is this little complication.
The South Gulf Cove Boat Lock.
The lock keeps …
more ...