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One of my favorite (ab)uses of operators is the "q" package for debugging: https://pypi.org/project/q/ https://pypi.org/project/q/ You `import q`, then you can

One of my favorite (ab)uses of operators is the "q" package for debugging: https://pypi.org/project/q/ https://pypi.org/project/q/ You `import q`, then you can slap `q/` or `q|` in front of an expression to log the value (q/ for high precedence, q| for low precedence). These days, `f"{x=}"` is probably preferred, but I still wind up using q occasionally because of its simplicity.

Siira 5y ago
I use icecream: `ic(debug_expr)`. Not as concise, of course.
- jaytaylor 5y ago
  Please read the comment below in the gentlest, friendliest tone possible, because my goal is to considerately inform and persuade you, dear writer :) HTML links make it 10-100x more likely other readers will learn about the thing being mentioned (and thus help increase awareness and adoption of good tools and resources). https://github.com/gruns/icecream https://github.com/gruns/icecream Example: from icecream import ic def foo(i): return i + 333 ic(foo(123)) Prints ic| foo(123): 456
  - paimoe 5y ago
    Software library naming has always been terrible and mostly un-searchable, so links definitely help
  - musicale 5y ago
    For people who know how to use search engines, PP's version may be better since it wastes less vertical space on HN.
- jounker 5y ago
  Thank you! I’ve been trying to remember this package’s name.
ziml77 5y ago
Just last week I was thinking that it would be great if Python had a way to print both the name and value of a variable without having to repeat the variable name. I checked the formatting mini-language spec and when I didn't see it there I assumed it didn't have it. I'm glad to know now that it does have that feature!
- renox 5y ago
  There are several versions of the "the formatting mini-language" and the documentation that Google return first is for an old one which didn't have this feature :-(
zestyping 5y ago
Aw, it's such a delight to open Hacker News and see this at the top of the comments! Glad you're enjoying q. I still use the @q decorator pretty often; it's really nice to be able to trace the arguments and return values of specific functions.

Siira 5y ago

I use icecream: `ic(debug_expr)`. Not as concise, of course.

jaytaylor 5y ago
Please read the comment below in the gentlest, friendliest tone possible, because my goal is to considerately inform and persuade you, dear writer :) HTML links make it 10-100x more likely other readers will learn about the thing being mentioned (and thus help increase awareness and adoption of good tools and resources). https://github.com/gruns/icecream https://github.com/gruns/icecream Example: from icecream import ic def foo(i): return i + 333 ic(foo(123)) Prints ic| foo(123): 456
- paimoe 5y ago
  Software library naming has always been terrible and mostly un-searchable, so links definitely help
- musicale 5y ago
  For people who know how to use search engines, PP's version may be better since it wastes less vertical space on HN.
jounker 5y ago
Thank you! I’ve been trying to remember this package’s name.

ziml77 5y ago

Just last week I was thinking that it would be great if Python had a way to print both the name and value of a variable without having to repeat the variable name. I checked the formatting mini-language spec and when I didn't see it there I assumed it didn't have it. I'm glad to know now that it does have that feature!

renox 5y ago
There are several versions of the "the formatting mini-language" and the documentation that Google return first is for an old one which didn't have this feature :-(

zestyping 5y ago

Aw, it's such a delight to open Hacker News and see this at the top of the comments! Glad you're enjoying q. I still use the @q decorator pretty often; it's really nice to be able to trace the arguments and return values of specific functions.