diff --git a/prospector-more.yml b/prospector-more.yml
index de7af7b5c5c..e4a0898ea6a 100644
--- a/prospector-more.yml
+++ b/prospector-more.yml
@@ -3,7 +3,6 @@ inherits: prospector
 strictness: medium
 
 ignore-paths:
-  - core/
   - donate/
   - restapi/
   - search/
diff --git a/readthedocs/core/__init__.py b/readthedocs/core/__init__.py
index 081e5c19f4d..ed1c53debf0 100644
--- a/readthedocs/core/__init__.py
+++ b/readthedocs/core/__init__.py
@@ -1 +1,3 @@
+"""App initialization."""
+
 default_app_config = 'readthedocs.core.apps.CoreAppConfig'
diff --git a/readthedocs/core/adapters.py b/readthedocs/core/adapters.py
index c54990ad2e8..76f00a9fea7 100644
--- a/readthedocs/core/adapters.py
+++ b/readthedocs/core/adapters.py
@@ -35,7 +35,7 @@ def send_mail(self, template_prefix, email, context):
         removed_keys = []
         for key in context.keys():
             try:
-                _ = pickle.dumps(context[key])
+                _ = pickle.dumps(context[key])  # noqa for F841
             except (pickle.PickleError, TypeError):
                 removed_keys.append(key)
                 del context[key]
diff --git a/readthedocs/core/admin.py b/readthedocs/core/admin.py
index 29feb2dd661..9ec5edcd36f 100644
--- a/readthedocs/core/admin.py
+++ b/readthedocs/core/admin.py
@@ -53,6 +53,9 @@ def queryset(self, request, queryset):
 
 
 class UserAdminExtra(UserAdmin):
+
+    """Admin configuration for User."""
+
     list_display = ('username', 'email', 'first_name',
                     'last_name', 'is_staff', 'is_banned')
     list_filter = (UserProjectFilter,) + UserAdmin.list_filter
diff --git a/readthedocs/core/apps.py b/readthedocs/core/apps.py
index d5c7c6b0e5b..d422684ba03 100644
--- a/readthedocs/core/apps.py
+++ b/readthedocs/core/apps.py
@@ -1,3 +1,5 @@
+"""App configurations for core app."""
+
 from django.apps import AppConfig
 
 
diff --git a/readthedocs/core/backends.py b/readthedocs/core/backends.py
index f896fb8281f..a9428d66fa7 100644
--- a/readthedocs/core/backends.py
+++ b/readthedocs/core/backends.py
@@ -1,3 +1,5 @@
+"""Email backends for core app."""
+
 import smtplib
 
 from django.core.mail.utils import DNS_NAME
@@ -15,6 +17,6 @@ def open(self):
             if self.username and self.password:
                 self.connection.login(self.username, self.password)
             return True
-        except:
+        except Exception:
             if not self.fail_silently:
                 raise
diff --git a/readthedocs/core/context_processors.py b/readthedocs/core/context_processors.py
index 2494edb784c..0ff6d8faa81 100644
--- a/readthedocs/core/context_processors.py
+++ b/readthedocs/core/context_processors.py
@@ -1,8 +1,10 @@
+"""Template context processors for core app."""
+
 from django.conf import settings
 
 
 def readthedocs_processor(request):
-
+    # pylint: disable=unused-argument
     exports = {
         'PUBLIC_DOMAIN': getattr(settings, 'PUBLIC_DOMAIN', None),
         'PRODUCTION_DOMAIN': getattr(settings, 'PRODUCTION_DOMAIN', None),
diff --git a/readthedocs/core/forms.py b/readthedocs/core/forms.py
index 70acdcfc086..2d96a09788a 100644
--- a/readthedocs/core/forms.py
+++ b/readthedocs/core/forms.py
@@ -1,3 +1,5 @@
+"""Forms for core app."""
+
 import logging
 
 from haystack.forms import SearchForm
@@ -25,7 +27,7 @@ def __init__(self, *args, **kwargs):
         try:
             self.fields['first_name'].initial = self.instance.user.first_name
             self.fields['last_name'].initial = self.instance.user.last_name
-        except:
+        except AttributeError:
             pass
 
     def save(self, *args, **kwargs):
diff --git a/readthedocs/core/management/commands/archive.py b/readthedocs/core/management/commands/archive.py
index 855044b4727..3a4c8ff1686 100644
--- a/readthedocs/core/management/commands/archive.py
+++ b/readthedocs/core/management/commands/archive.py
@@ -1,3 +1,5 @@
+"""Rebuild documentation for all projects"""
+
 from glob import glob
 import os
 import logging
@@ -11,11 +13,7 @@
 
 class Command(BaseCommand):
 
-    """
-    Custom management command to rebuild documentation for all projects.
-
-    Invoked via ``./manage.py update_repos``.
-    """
+    help = __doc__
 
     def handle(self, *args, **options):
         doc_index = {}
diff --git a/readthedocs/core/management/commands/clean_builds.py b/readthedocs/core/management/commands/clean_builds.py
index 89164c2a225..a4bb8f0d512 100644
--- a/readthedocs/core/management/commands/clean_builds.py
+++ b/readthedocs/core/management/commands/clean_builds.py
@@ -1,3 +1,5 @@
+"""Clean up stable build paths per project version"""
+
 from datetime import datetime, timedelta
 import logging
 from optparse import make_option
@@ -12,7 +14,7 @@
 
 class Command(BaseCommand):
 
-    help = ('Clean up stale build paths per project version')
+    help = __doc__
 
     option_list = BaseCommand.option_list + (
         make_option('--days',
diff --git a/readthedocs/core/management/commands/import_github.py b/readthedocs/core/management/commands/import_github.py
index 214ef03067d..45bb028e968 100644
--- a/readthedocs/core/management/commands/import_github.py
+++ b/readthedocs/core/management/commands/import_github.py
@@ -1,3 +1,5 @@
+"""Resync GitHub project for user"""
+
 from django.core.management.base import BaseCommand
 from django.contrib.auth.models import User
 
@@ -6,6 +8,8 @@
 
 class Command(BaseCommand):
 
+    help = __doc__
+
     def handle(self, *args, **options):
         if len(args):
             for slug in args:
diff --git a/readthedocs/core/management/commands/import_github_language.py b/readthedocs/core/management/commands/import_github_language.py
index d1540f008db..aa6e33ced8a 100644
--- a/readthedocs/core/management/commands/import_github_language.py
+++ b/readthedocs/core/management/commands/import_github_language.py
@@ -1,3 +1,13 @@
+"""
+Import a project's programming language from GitHub
+
+This builds a basic management command that will set
+a projects language to the most used one in GitHub.
+
+Requires a ``GITHUB_AUTH_TOKEN`` to be set in the environment,
+which should contain a proper GitHub Oauth Token for rate limiting.
+"""
+
 import os
 import requests
 
@@ -15,17 +25,10 @@
 
 class Command(BaseCommand):
 
-    """
-    Import a project's programming language from GitHub.
-
-    This builds a basic management command that will set
-    a projects language to the most used one in GitHub.
-
-    Requires a ``GITHUB_AUTH_TOKEN`` to be set in the environment,
-    which should contain a proper GitHub Oauth Token for rate limiting.
-    """
+    help = __doc__
 
     def handle(self, *args, **options):
+        # pylint: disable=too-many-locals
         token = os.environ.get('GITHUB_AUTH_TOKEN')
         if not token:
             print 'Invalid GitHub token, exiting'
diff --git a/readthedocs/core/management/commands/pull.py b/readthedocs/core/management/commands/pull.py
index cc563e406e1..391ddb8a2d6 100644
--- a/readthedocs/core/management/commands/pull.py
+++ b/readthedocs/core/management/commands/pull.py
@@ -1,7 +1,8 @@
+"""Trigger build for project slug"""
+
 import logging
 
 from django.core.management.base import BaseCommand
-from django.conf import settings
 
 from readthedocs.builds.constants import LATEST
 from readthedocs.projects import tasks, utils
@@ -11,6 +12,9 @@
 
 
 class Command(BaseCommand):
+
+    help = __doc__
+
     def handle(self, *args, **options):
         if len(args):
             for slug in args:
diff --git a/readthedocs/core/management/commands/reindex_elasticsearch.py b/readthedocs/core/management/commands/reindex_elasticsearch.py
index d7b8176e376..839ac4854d6 100644
--- a/readthedocs/core/management/commands/reindex_elasticsearch.py
+++ b/readthedocs/core/management/commands/reindex_elasticsearch.py
@@ -1,3 +1,5 @@
+"""Reindex Elastic Search indexes"""
+
 import logging
 from optparse import make_option
 
@@ -14,6 +16,7 @@
 
 class Command(BaseCommand):
 
+    help = __doc__
     option_list = BaseCommand.option_list + (
         make_option('-p',
                     dest='project',
@@ -32,20 +35,21 @@ def handle(self, *args, **options):
             if not queryset.exists():
                 raise CommandError(
                     'No project with slug: {slug}'.format(slug=project))
-            log.info("Building all versions for %s" % project)
+            log.info("Building all versions for %s", project)
         elif getattr(settings, 'INDEX_ONLY_LATEST', True):
             queryset = queryset.filter(slug=LATEST)
 
         for version in queryset:
-            log.info("Reindexing %s" % version)
+            log.info("Reindexing %s", version)
             try:
                 commit = version.project.vcs_repo(version.slug).commit
-            except:
-                # This will happen on prod
+            except:  # pylint: disable=bare-except
+                # An exception can be thrown here in production, but it's not
+                # documented what the exception here is
                 commit = None
 
             try:
                 update_search(version.pk, commit,
                               delete_non_commit_files=False)
             except Exception:
-                log.error('Reindex failed for %s' % version, exc_info=True)
+                log.error('Reindex failed for %s', version, exc_info=True)
diff --git a/readthedocs/core/management/commands/set_metadata.py b/readthedocs/core/management/commands/set_metadata.py
index 3bd6f0e9033..5ef8e6f07fb 100644
--- a/readthedocs/core/management/commands/set_metadata.py
+++ b/readthedocs/core/management/commands/set_metadata.py
@@ -1,8 +1,8 @@
+"""Generate metadata for all projects"""
+
 import logging
-from optparse import make_option
 
 from django.core.management.base import BaseCommand
-from django.conf import settings
 
 from readthedocs.projects import tasks
 from readthedocs.projects.models import Project
@@ -11,11 +11,14 @@
 
 
 class Command(BaseCommand):
+
+    help = __doc__
+
     def handle(self, *args, **options):
         queryset = Project.objects.all()
         for p in queryset:
-            log.info("Generating metadata for %s" % p)
+            log.info("Generating metadata for %s", p)
             try:
                 tasks.update_static_metadata(p.pk)
             except Exception:
-                log.error('Build failed for %s' % p, exc_info=True)
+                log.error('Build failed for %s', p, exc_info=True)
diff --git a/readthedocs/core/management/commands/symlink.py b/readthedocs/core/management/commands/symlink.py
index 8dd96099081..4c2f92cbf96 100644
--- a/readthedocs/core/management/commands/symlink.py
+++ b/readthedocs/core/management/commands/symlink.py
@@ -1,3 +1,5 @@
+"""Update symlinks for projects"""
+
 import logging
 
 from django.core.management.base import BaseCommand
@@ -11,6 +13,8 @@
 
 class Command(BaseCommand):
 
+    help = __doc__
+
     def add_arguments(self, parser):
         parser.add_argument('projects', nargs='+', type=str)
 
diff --git a/readthedocs/core/management/commands/update_api.py b/readthedocs/core/management/commands/update_api.py
index 8a3100b2389..195615b5deb 100644
--- a/readthedocs/core/management/commands/update_api.py
+++ b/readthedocs/core/management/commands/update_api.py
@@ -1,3 +1,11 @@
+"""
+Build documentation using the API and not hitting a database.
+
+Usage::
+
+    ./manage.py update_api <slug>
+"""
+
 import logging
 
 from django.core.management.base import BaseCommand
@@ -10,13 +18,7 @@
 
 class Command(BaseCommand):
 
-    """
-    Build documentation using the API and not hitting a database.
-
-    Usage::
-
-        ./manage.py update_api <slug>
-    """
+    help = __doc__
 
     def add_arguments(self, parser):
         parser.add_argument('--docker', action='store_true', default=False)
@@ -27,5 +29,5 @@ def handle(self, *args, **options):
         for slug in options['projects']:
             project_data = api.project(slug).get()
             p = tasks.make_api_project(project_data)
-            log.info("Building %s" % p)
+            log.info("Building %s", p)
             tasks.update_docs.run(pk=p.pk, docker=docker)
diff --git a/readthedocs/core/management/commands/update_repos.py b/readthedocs/core/management/commands/update_repos.py
index 394958a59af..5492f70c04b 100644
--- a/readthedocs/core/management/commands/update_repos.py
+++ b/readthedocs/core/management/commands/update_repos.py
@@ -1,3 +1,9 @@
+"""
+Custom management command to rebuild documentation for all projects.
+
+Invoked via ``./manage.py update_repos``.
+"""
+
 import logging
 from optparse import make_option
 
@@ -12,12 +18,9 @@
 
 class Command(BaseCommand):
 
-    """
-    Custom management command to rebuild documentation for all projects.
-
-    Invoked via ``./manage.py update_repos``.
-    """
+    """Management command for rebuilding documentation on projects"""
 
+    help = __doc__
     option_list = BaseCommand.option_list + (
         make_option('-r',
                     action='store_true',
@@ -42,11 +45,11 @@ def handle(self, *args, **options):
         if len(args):
             for slug in args:
                 if version and version != "all":
-                    log.info("Updating version %s for %s" % (version, slug))
+                    log.info("Updating version %s for %s", version, slug)
                     for version in Version.objects.filter(project__slug=slug, slug=version):
                         trigger_build(project=version.project, version=version)
                 elif version == "all":
-                    log.info("Updating all versions for %s" % slug)
+                    log.info("Updating all versions for %s", slug)
                     for version in Version.objects.filter(project__slug=slug,
                                                           active=True,
                                                           uploaded=False):
@@ -55,7 +58,7 @@ def handle(self, *args, **options):
                                               version_pk=version.pk)
                 else:
                     p = Project.all_objects.get(slug=slug)
-                    log.info("Building %s" % p)
+                    log.info("Building %s", p)
                     trigger_build(project=p, force=force, record=record)
         else:
             if version == "all":
@@ -71,7 +74,3 @@ def handle(self, *args, **options):
                 for project in Project.objects.all():
                     tasks.update_docs.run(pk=project.pk, record=record,
                                           force=force)
-
-    @property
-    def help(self):
-        return Command.__doc__
diff --git a/readthedocs/core/management/commands/update_versions.py b/readthedocs/core/management/commands/update_versions.py
index 0ae1a6f0424..f04be5db218 100644
--- a/readthedocs/core/management/commands/update_versions.py
+++ b/readthedocs/core/management/commands/update_versions.py
@@ -1,3 +1,5 @@
+"""Rebuild documentation for all projects"""
+
 from django.core.management.base import BaseCommand
 
 from readthedocs.builds.models import Version
@@ -6,11 +8,7 @@
 
 class Command(BaseCommand):
 
-    """
-    Custom management command to rebuild documentation for all projects.
-
-    Invoked via ``./manage.py update_repos``.
-    """
+    help = __doc__
 
     def handle(self, *args, **options):
         for version in Version.objects.filter(active=True, built=False):
diff --git a/readthedocs/core/middleware.py b/readthedocs/core/middleware.py
index 7cf32bfdaf4..ff8a67d8b7d 100644
--- a/readthedocs/core/middleware.py
+++ b/readthedocs/core/middleware.py
@@ -1,3 +1,5 @@
+"""Middleware for core app."""
+
 import logging
 
 from django.utils.translation import ugettext_lazy as _
@@ -27,7 +29,15 @@
 
 class SubdomainMiddleware(object):
 
+    """Middleware to display docs for non-dashboard domains"""
+
     def process_request(self, request):
+        """Process requests for unhandled domains
+
+        If the request is not for our ``PUBLIC_DOMAIN``, or if ``PUBLIC_DOMAIN``
+        is not set and the request is for a subdomain on ``PRODUCTION_DOMAIN``,
+        process the request as a request a documentation project.
+        """
         if not getattr(settings, 'USE_SUBDOMAIN', False):
             return None
 
diff --git a/readthedocs/core/models.py b/readthedocs/core/models.py
index 5ef8aefb8b6..d633823a89e 100644
--- a/readthedocs/core/models.py
+++ b/readthedocs/core/models.py
@@ -1,3 +1,5 @@
+"""Models for the core app."""
+
 import logging
 
 from django.db import models
diff --git a/readthedocs/core/resolver.py b/readthedocs/core/resolver.py
index 99ee6092c24..66cbb85e4be 100644
--- a/readthedocs/core/resolver.py
+++ b/readthedocs/core/resolver.py
@@ -55,6 +55,7 @@ def base_resolve_path(self, project_slug, filename, version_slug=None,
         """Resolve a with nothing smart, just filling in the blanks"""
         # Only support `/docs/project' URLs outside our normal environment. Normally
         # the path should always have a subdomain or CNAME domain
+        # pylint: disable=unused-argument
         if subdomain or cname or (self._use_subdomain()):
             url = u'/'
         else:
@@ -120,6 +121,7 @@ def resolve_path(self, project, filename='', version_slug=None,
         )
 
     def resolve_domain(self, project, private=None):
+        # pylint: disable=unused-argument
         canonical_project = self._get_canonical_project(project)
         domain = canonical_project.domains.filter(canonical=True).first()
         if domain:
diff --git a/readthedocs/core/signals.py b/readthedocs/core/signals.py
index 5ff5a472deb..aab87d50dba 100644
--- a/readthedocs/core/signals.py
+++ b/readthedocs/core/signals.py
@@ -1,3 +1,5 @@
+"""Signal handling for core app."""
+
 import logging
 from urlparse import urlparse
 
@@ -16,7 +18,7 @@
 webhook_bitbucket = Signal(providing_args=['project', 'data', 'event'])
 
 
-def decide_if_cors(sender, request, **kwargs):
+def decide_if_cors(sender, request, **kwargs):  # pylint: disable=unused-argument
     """
     Decide whether a request should be given CORS access.
 
diff --git a/readthedocs/core/templatetags/core_tags.py b/readthedocs/core/templatetags/core_tags.py
index 57de3d3d4fa..51261504a48 100644
--- a/readthedocs/core/templatetags/core_tags.py
+++ b/readthedocs/core/templatetags/core_tags.py
@@ -1,3 +1,5 @@
+"""Template tags for core app."""
+
 import urllib
 import hashlib
 
@@ -60,15 +62,14 @@ def restructuredtext(value, short=False):
                 out = out.split("\n")[0]
         except IndexError:
             pass
-        finally:
-            return mark_safe(out)
+        return mark_safe(out)
 
 
 @register.filter
 def get_project(slug):
     try:
         return Project.objects.get(slug=slug)
-    except:
+    except Project.DoesNotExist:
         return None
 
 
@@ -76,7 +77,7 @@ def get_project(slug):
 def get_version(slug):
     try:
         return Project.objects.get(slug=slug)
-    except:
+    except Project.DoesNotExist:
         return None
 
 
diff --git a/readthedocs/core/urls/__init__.py b/readthedocs/core/urls/__init__.py
index d4876159924..d4024e96f00 100644
--- a/readthedocs/core/urls/__init__.py
+++ b/readthedocs/core/urls/__init__.py
@@ -1,3 +1,5 @@
+"""URL configuration for core app."""
+
 from django.conf.urls import url
 
 from readthedocs.constants import pattern_opts
diff --git a/readthedocs/core/urls/single_version.py b/readthedocs/core/urls/single_version.py
index d904db91de5..136a3461bd4 100644
--- a/readthedocs/core/urls/single_version.py
+++ b/readthedocs/core/urls/single_version.py
@@ -1,3 +1,5 @@
+"""URL configuration for a single version."""
+
 from operator import add
 
 from django.conf.urls import url
diff --git a/readthedocs/core/urls/subdomain.py b/readthedocs/core/urls/subdomain.py
index f3532c6d01a..eb27a471042 100644
--- a/readthedocs/core/urls/subdomain.py
+++ b/readthedocs/core/urls/subdomain.py
@@ -1,3 +1,5 @@
+"""URL configurations for subdomains."""
+
 from operator import add
 
 from django.conf.urls import url, patterns
diff --git a/readthedocs/core/utils/__init__.py b/readthedocs/core/utils/__init__.py
index 3f4a3d17ce1..ae34fd032e3 100644
--- a/readthedocs/core/utils/__init__.py
+++ b/readthedocs/core/utils/__init__.py
@@ -1,3 +1,5 @@
+"""Common utilty functions"""
+
 import errno
 import getpass
 import logging
@@ -23,7 +25,7 @@
 
 def run_on_app_servers(command):
     """A helper to copy a single file across app servers"""
-    log.info("Running %s on app servers" % command)
+    log.info("Running %s on app servers", command)
     ret_val = 0
     if getattr(settings, "MULTIPLE_APP_SERVERS", None):
         for server in settings.MULTIPLE_APP_SERVERS:
@@ -36,7 +38,7 @@ def run_on_app_servers(command):
         return ret
 
 
-def broadcast(type, task, args):
+def broadcast(type, task, args):  # pylint: disable=redefined-builtin
     assert type in ['web', 'app', 'build']
     default_queue = getattr(settings, 'CELERY_DEFAULT_QUEUE', 'celery')
     if type in ['web', 'app']:
@@ -52,13 +54,10 @@ def broadcast(type, task, args):
 
 def clean_url(url):
     parsed = urlparse(url)
-    if parsed.scheme:
-        scheme, netloc = parsed.scheme, parsed.netloc
-    elif parsed.netloc:
-        scheme, netloc = "http", parsed.netloc
+    if parsed.scheme or parsed.netloc:
+        return parsed.netloc
     else:
-        scheme, netloc = "http", parsed.path
-    return netloc
+        return parsed.path
 
 
 def cname_to_slug(host):
@@ -126,7 +125,7 @@ def trigger_build(project, version=None, record=True, force=False, basic=False):
 
 
 def send_email(recipient, subject, template, template_html, context=None,
-               request=None):
+               request=None):  # pylint: disable=unused-argument
     """Alter context passed in and call email send task
 
     .. seealso::
diff --git a/readthedocs/core/utils/extend.py b/readthedocs/core/utils/extend.py
index 9e25d0ce180..5707f5aed5b 100644
--- a/readthedocs/core/utils/extend.py
+++ b/readthedocs/core/utils/extend.py
@@ -21,6 +21,7 @@ def get_override_class(proxy_class, default_class=None):
         proxy_class.__name__
     ])
     class_path = getattr(settings, 'CLASS_OVERRIDES', {}).get(class_id)
+    # pylint: disable=protected-access
     if class_path is None and proxy_class._override_setting is not None:
         class_path = getattr(settings, proxy_class._override_setting, None)
     if class_path is not None:
diff --git a/readthedocs/core/utils/tasks/__init__.py b/readthedocs/core/utils/tasks/__init__.py
index 766f899f1cc..3b6b13331b7 100644
--- a/readthedocs/core/utils/tasks/__init__.py
+++ b/readthedocs/core/utils/tasks/__init__.py
@@ -1,7 +1,9 @@
-from .permission_checks import user_id_matches
-from .public import PublicTask
-from .public import TaskNoPermission
-from .public import permission_check
-from .public import get_public_task_data
-from .retrieve import TaskNotFound
-from .retrieve import get_task_data
+"""Common task exports"""
+
+from .permission_checks import user_id_matches  # noqa for unused import
+from .public import PublicTask  # noqa
+from .public import TaskNoPermission  # noqa
+from .public import permission_check  # noqa
+from .public import get_public_task_data  # noqa
+from .retrieve import TaskNotFound  # noqa
+from .retrieve import get_task_data  # noqa
diff --git a/readthedocs/core/utils/tasks/permission_checks.py b/readthedocs/core/utils/tasks/permission_checks.py
index 91ac5d1372c..ce2a2dffd2d 100644
--- a/readthedocs/core/utils/tasks/permission_checks.py
+++ b/readthedocs/core/utils/tasks/permission_checks.py
@@ -1,7 +1,9 @@
+"""Permission checks for tasks"""
+
 __all__ = ('user_id_matches',)
 
 
-def user_id_matches(request, state, context):
+def user_id_matches(request, state, context):  # pylint: disable=unused-argument
     user_id = context.get('user_id', None)
     if user_id is not None and request.user.is_authenticated():
         if request.user.id == user_id:
diff --git a/readthedocs/core/utils/tasks/public.py b/readthedocs/core/utils/tasks/public.py
index f9fcd0e5e21..91fba3fbab2 100644
--- a/readthedocs/core/utils/tasks/public.py
+++ b/readthedocs/core/utils/tasks/public.py
@@ -1,3 +1,5 @@
+"""Celery tasks with publicly viewable status"""
+
 from celery import Task, states
 from django.conf import settings
 
@@ -26,6 +28,7 @@ class PublicTask(Task):
     @classmethod
     def check_permission(cls, request, state, context):
         """Override this method to define who can monitor this task."""
+        # pylint: disable=unused-argument
         return False
 
     def get_task_data(self):
@@ -67,7 +70,7 @@ def run(self, *args, **kwargs):
         result = self.run_public(*args, **kwargs)
         if result is not None:
             self.set_public_data(result)
-        state, info = self.get_task_data()
+        _, info = self.get_task_data()
         return info
 
     def after_return(self, status, retval, task_id, args, kwargs, einfo):
diff --git a/readthedocs/core/utils/tasks/retrieve.py b/readthedocs/core/utils/tasks/retrieve.py
index ee1fb362abc..9fdb33efdfc 100644
--- a/readthedocs/core/utils/tasks/retrieve.py
+++ b/readthedocs/core/utils/tasks/retrieve.py
@@ -1,3 +1,5 @@
+"""Utilities for retrieving task data."""
+
 from djcelery import celery as celery_app
 from celery.result import AsyncResult
 
diff --git a/readthedocs/core/validators.py b/readthedocs/core/validators.py
index 70d5c84b001..7b4c904f39c 100644
--- a/readthedocs/core/validators.py
+++ b/readthedocs/core/validators.py
@@ -1,3 +1,5 @@
+"""Validators for core app."""
+
 # From https://github.com/django/django/pull/3477/files
 import re
 
diff --git a/readthedocs/core/views/__init__.py b/readthedocs/core/views/__init__.py
index 60664549d7c..8cf4ea3d7ff 100644
--- a/readthedocs/core/views/__init__.py
+++ b/readthedocs/core/views/__init__.py
@@ -68,7 +68,7 @@ def get_context_data(self, **kwargs):
         return context
 
 
-def random_page(request, project_slug=None):
+def random_page(request, project_slug=None):  # pylint: disable=unused-argument
     imported_file = ImportedFile.objects.order_by('?')
     if project_slug:
         imported_file = imported_file.filter(project__slug=project_slug)
@@ -100,11 +100,11 @@ def wipe_version(request, project_slug, version_slug):
                                   context_instance=RequestContext(request))
 
 
-def divide_by_zero(request):
+def divide_by_zero(request):  # pylint: disable=unused-argument
     return 1 / 0
 
 
-def server_error_500(request, exception, template_name='500.html'):
+def server_error_500(request, exception, template_name='500.html'):  # pylint: disable=unused-argument  # noqa
     """A simple 500 handler so we get media"""
     r = render_to_response(template_name,
                            context_instance=RequestContext(request))
@@ -112,7 +112,7 @@ def server_error_500(request, exception, template_name='500.html'):
     return r
 
 
-def server_error_404(request, exception, template_name='404.html'):
+def server_error_404(request, exception, template_name='404.html'):  # pylint: disable=unused-argument  # noqa
     """A simple 404 handler so we get media"""
     response = get_redirect_response(request, path=request.get_full_path())
     if response:
diff --git a/readthedocs/core/views/hooks.py b/readthedocs/core/views/hooks.py
index 8a2538cad63..4baf9ff2588 100644
--- a/readthedocs/core/views/hooks.py
+++ b/readthedocs/core/views/hooks.py
@@ -1,3 +1,5 @@
+"""Views pertaining to builds."""
+
 import json
 import re
 
@@ -36,26 +38,26 @@ def _build_version(project, slug, already_built=()):
         # active
         latest_version = project.versions.get(slug=LATEST)
         trigger_build(project=project, version=latest_version, force=True)
-        log.info(("(Version build) Building %s:%s"
-                  % (project.slug, latest_version.slug)))
+        log.info("(Version build) Building %s:%s",
+                 project.slug, latest_version.slug)
         if project.versions.exclude(active=False).filter(slug=slug).exists():
             # Handle the case where we want to build the custom branch too
             slug_version = project.versions.get(slug=slug)
             trigger_build(project=project, version=slug_version, force=True)
-            log.info(("(Version build) Building %s:%s"
-                      % (project.slug, slug_version.slug)))
+            log.info("(Version build) Building %s:%s",
+                     project.slug, slug_version.slug)
         return LATEST
     elif project.versions.exclude(active=True).filter(slug=slug).exists():
-        log.info(("(Version build) Not Building %s" % slug))
+        log.info("(Version build) Not Building %s", slug)
         return None
     elif slug not in already_built:
         version = project.versions.get(slug=slug)
         trigger_build(project=project, version=version, force=True)
-        log.info(("(Version build) Building %s:%s"
-                  % (project.slug, version.slug)))
+        log.info("(Version build) Building %s:%s",
+                 project.slug, version.slug)
         return slug
     else:
-        log.info(("(Version build) Not Building %s" % slug))
+        log.info("(Version build) Not Building %s", slug)
         return None
 
 
@@ -72,8 +74,8 @@ def build_branches(project, branch_list):
         to_build = set()
         not_building = set()
         for version in versions:
-            log.info(("(Branch Build) Processing %s:%s"
-                      % (project.slug, version.slug)))
+            log.info("(Branch Build) Processing %s:%s",
+                     project.slug, version.slug)
             ret = _build_version(project, version.slug, already_built=to_build)
             if ret:
                 to_build.add(ret)
@@ -311,14 +313,14 @@ def generic_build(request, project_id_or_slug=None):
             project = Project.objects.get(slug=project_id_or_slug)
         except (Project.DoesNotExist, ValueError):
             log.error(
-                "(Incoming Generic Build) Repo not found:  %s" % (
-                    project_id_or_slug))
+                "(Incoming Generic Build) Repo not found:  %s",
+                project_id_or_slug)
             return HttpResponseNotFound(
                 'Repo not found: %s' % project_id_or_slug)
     if request.method == 'POST':
         slug = request.POST.get('version_slug', project.default_version)
         log.info(
-            "(Incoming Generic Build) %s [%s]" % (project.slug, slug))
+            "(Incoming Generic Build) %s [%s]", project.slug, slug)
         _build_version(project, slug)
     else:
         return HttpResponse("You must POST to this resource.")
diff --git a/readthedocs/core/views/serve.py b/readthedocs/core/views/serve.py
index 09f663015c7..6f0663c25f8 100644
--- a/readthedocs/core/views/serve.py
+++ b/readthedocs/core/views/serve.py
@@ -95,14 +95,14 @@ def inner_view(request, project=None, project_slug=None, *args, **kwargs):
 
 @map_project_slug
 @map_subproject_slug
-def redirect_project_slug(request, project, subproject):
+def redirect_project_slug(request, project, subproject):  # pylint: disable=unused-argument
     """Handle / -> /en/latest/ directs on subdomains"""
     return HttpResponseRedirect(resolve(subproject or project))
 
 
 @map_project_slug
 @map_subproject_slug
-def redirect_page_with_filename(request, project, subproject, filename):
+def redirect_page_with_filename(request, project, subproject, filename):  # pylint: disable=unused-argument  # noqa
     """Redirect /page/file.html to /en/latest/file.html."""
     return HttpResponseRedirect(resolve(subproject or project, filename=filename))
 
@@ -170,7 +170,7 @@ def serve_docs(request, project, subproject,
 
 @map_project_slug
 def _serve_symlink_docs(request, project, privacy_level, filename=''):
-
+    """Serve a file by symlink, or a 404 if not found."""
     # Handle indexes
     if filename == '' or filename[-1] == '/':
         filename += 'index.html'
@@ -179,7 +179,7 @@ def _serve_symlink_docs(request, project, privacy_level, filename=''):
     if filename[0] == '/':
         filename = filename[1:]
 
-    log.info('Serving %s for %s' % (filename, project))
+    log.info('Serving %s for %s', filename, project)
 
     files_tried = []