sitemaps: more efficient processing

[adbar]

No description provided.

[codecov-commenter]

Codecov Report

Merging #326 (4ec0383) into master (21d793d) will decrease coverage by 0.02%.
The diff coverage is 98.71%.

❗ Current head 4ec0383 differs from pull request most recent head 53fd086. Consider uploading reports for the commit 53fd086 to get more accurate results

📣 This organization is not using Codecov’s GitHub App Integration. We recommend you install it so Codecov can continue to function properly for your repositories. Learn more

@@            Coverage Diff             @@
##           master     #326      +/-   ##
==========================================
- Coverage   96.49%   96.47%   -0.02%     
==========================================
  Files          22       22              
  Lines        3336     3350      +14     
==========================================
+ Hits         3219     3232      +13     
- Misses        117      118       +1     

Impacted Files	Coverage Δ
trafilatura/sitemaps.py	95.56% <98.46%> (-0.21%)	⬇️
trafilatura/cli.py	94.70% <100.00%> (-0.04%)	⬇️
trafilatura/cli_utils.py	91.50% <100.00%> (ø)
trafilatura/downloads.py	99.30% <100.00%> (-0.01%)	⬇️

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.