---

radon

Computes four different code metrics:

• radon-cc: cyclomatic complexity (measures the number of independent paths through code).
• radon-mi: maintainability index (estimates ease of maintenance).
• radon-raw: raw metrics (counts lines, comments, blanks, etc.).
• radon-hal: halstead metrics (quantifies code complexity based on operators (symbols) and operands (variables)).

See the radon documentation for more details.

View on PyPI View on GitHub View on Conda

Example Quarto .qmd file:

1:     ---
2:     title: "Example"
3:     ---
4:     
5:     This file contains some issues for the linter to identify.
6:     
7:     ```{python}
8:     # Function with low complexity
9:     def simple_addition(a, b):
10:        return a + b
11:    ```
12:    
13:    There's another function to check below:
14:    
15:    ```{python}
16:    # Function with moderate complexity
17:    def check_number(num, flag, extra):
18:        if num > 100:
19:            if flag:
20:                if extra:
21:                    return "Huge and flagged and extra"
22:                else:
23:                    return "Huge and flagged"
24:            else:
25:                if extra:
26:                    return "Huge and extra"
27:                else:
28:                    return "Huge"
29:        elif num > 50:
30:            if flag:
31:                return "Medium and flagged"
32:            else:
33:                return "Medium"
34:        elif num > 10:
35:            if extra:
36:                return "Small and extra"
37:            else:
38:                return "Small"
39:        else:
40:            if flag or extra:
41:                return "Tiny but special"
42:            else:
43:                return "Tiny"
44:    ```

Run radon using lintquarto

lintquarto -l radon-cc -p complexity_example.qmd

=============================================================
Running radon-cc...
=============================================================
/home/runner/work/lintquarto/lintquarto/docs/pages/tools/examples/complexity_example.qmd
    F 17:0 check_number - C
    F 9:0 simple_addition - A

lintquarto -l radon-mi -p complexity_example.qmd

=============================================================
Running radon-mi...
=============================================================
/home/runner/work/lintquarto/lintquarto/docs/pages/tools/examples/complexity_example.qmd - A

lintquarto -l radon-raw -p complexity_example.qmd

=============================================================
Running radon-raw...
=============================================================
/home/runner/work/lintquarto/lintquarto/docs/pages/tools/examples/complexity_example.qmd
    LOC: 31
    LLOC: 29
    SLOC: 29
    Comments: 2
    Single comments: 2
    Multi: 0
    Blank: 0
    - Comment Stats
        (C % L): 6%
        (C % S): 7%
        (C + M % L): 6%

lintquarto -l radon-hal -p complexity_example.qmd

=============================================================
Running radon-hal...
=============================================================
/home/runner/work/lintquarto/lintquarto/docs/pages/tools/examples/complexity_example.qmd:
    h1: 3
    h2: 8
    N1: 5
    N2: 10
    vocabulary: 11
    length: 15
    calculated_length: 28.75488750216347
    volume: 51.89147427955947
    difficulty: 1.875
    effort: 97.296514274174
    time: 5.405361904120777
    bugs: 0.01729715809318649