Reduce Travis test runs.

.travis.yml

@@ -11,6 +11,6 @@ install:
   - pip install -r requirements.txt --use-mirrors
   - pip install pytest-xdist --use-mirrors
 # command to run tests
-script: make test PYTESTOPTS="--tb=short -n40"
+script: make test PYTESTOPTS="--tb=short -n25"
 #notifications:
 #  email: false

tests/test_comics.py

@@ -93,7 +93,7 @@ def generate_comic_testers():
     g = globals()
     if "TRAVIS" in os.environ:
         # Get limited number of scraper tests on Travis builds.
-        max_scrapers = 2000
+        max_scrapers = 1500
         scraperclasses = islice(scraper.get_scraperclasses(), 0, max_scrapers)
     else:
         scraperclasses = scraper.get_scraperclasses()