feat(cl_back_scrape_opinions): add optional wait argument

Solves #4564

cl/scrapers/management/commands/cl_back_scrape_opinions.py

@@ -1,3 +1,5 @@
+import time
+
 from juriscraper import AbstractSite
 from juriscraper.AbstractSite import logger
 from juriscraper.lib.importer import site_yielder
@@ -20,6 +22,13 @@ def add_arguments(self, parser):
  dest="backscrape_end",
  help="End value for backscraper iterable creation.",
  )
+ parser.add_argument(
+ "--backscrape-wait",
+ type=int,
+ default=0,
+ help="Seconds to wait after consuming each element "
+ "of the backscrape iterable",
+ )
 
  def parse_and_scrape_site(
  self,
@@ -50,5 +59,12 @@ def parse_and_scrape_site(
  site.parse()
  self.scrape_court(site, full_crawl=True)
 
+ if wait := options["backscrape_wait"]:
+ logger.info(
+ "Sleeping for %s seconds before continuing backscrape",
+ wait,
+ )
+ time.sleep(wait)
+
  def save_everything(self, items, index=False, backscrape=True):
  super().save_everything(items, index, backscrape)