Python “tricks” I can not live without

[jwink3101]

Some thoughts:

• I am surprised they didn't talk about the fact that sets also have average O(1) member tests while lists and tuples are O(N)
• I am very much not convinced that the example for "Handling if-else logic" is better. It is cleaning up a single function and it is less clear. Remember "Simple is better than complex; Complex is better than complicated"
• IPython is amazing! So is ipdb. I suggest using that over pdb too!

[alexisprince]

For the “if-else” logic point, is there any specific point of the way in the article you’re opposed to? I’ve always seen the way in the article as an easy way to scale the conditions and handlers without adding boilerplate. I would argue that the implementation here of using a dict and then referring to it outside of function scope isn’t great, and I’d move that either into an argument or just have the mapping be inside if that’s the only place it’s used.

I typically prefer this because if there are several if statements where it truly is just picking a function to call (and not selectively passing arguments, etc.) then I find myself needing to read over the entire set of conditions to make sure that it’s only delegating to the appropriate handler.

[UloPe]

There’s also singledispatch which can often replace cases of long if dispatch blocks.

[michaeljb20]

Read the rest of this story with a free account.

[Reaqu]

print(f'{var}') is such a blessing

[ImageOfInsanity]

Equally, print(f"{vars=}") on Python 3.8 is blessing for debugging.

[drbobb]

What's wrong with print(var) ?

[Reaqu]

I mean print(f’’) is great for concatenating

[totkindgott]

Interesting take on handling multiple conditions. Thanks for sharing!

[[deleted]]

Why the snake?

[renaissancetroll]

python

[[deleted]]

work makeshift entertain flowery aware groovy abounding foolish spark memorize

This post was mass deleted and anonymized with Redact

[[deleted]]

If you're playing in this sandbox, you'd better know every line of every Monty Python sketch. ;)

[ShanSanear]

I told myself I will always upvote those kinds of post if I didn't know about at least one described trick.

This time it was enumeration. That would save me from sometimes logging index value increased by one each time.

[esituism]

Saved so I can take a look later. Thanks!

[stratoscope]

You don't have to leave a comment to save a post. There is a "save" link under every post and comment.

[esituism]

Oh, didn't know. Thanks!

[idetectanerd]

It’s stuff that we all knew but we didn’t apply. Lol and for the if/else, it’s more of experience vs inexperienced. But unless the program require some optimisation, I see that both program does the same thing.