diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 75085bf06e04d8e454c6570e5e3181bf8a0e9c58..9406b9afe6d479af6a68be5265bd36c54ce2c6fe 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -33,3 +33,12 @@ Mypy:
   - python3.5
   except:
   - tags
+
+Flake8:
+  script:
+  - curl -L -O -k https://gitlab.tiker.net/inducer/ci-support/raw/master/prepare-and-run-flake8.sh
+  - ". ./prepare-and-run-flake8.sh relate course accounts test bin"
+  tags:
+  - python3.5
+  except:
+  - tags
diff --git a/accounts/__init__.py b/accounts/__init__.py
index d409344bec94be25d0aec6cc1b4e7a868c57cbf3..8319823191b94c101df51a5f8af026671f85f567 100644
--- a/accounts/__init__.py
+++ b/accounts/__init__.py
@@ -1 +1 @@
-default_app_config = 'accounts.apps.AccountsConfig'
\ No newline at end of file
+default_app_config = 'accounts.apps.AccountsConfig'
diff --git a/accounts/apps.py b/accounts/apps.py
index fcad9b4ff44b22b6e8d20189fbb283cd4b1e5e07..b5b68ddd974ac9513a7f807b21ce00152eb23ed1 100644
--- a/accounts/apps.py
+++ b/accounts/apps.py
@@ -5,4 +5,4 @@ from django.utils.translation import ugettext_lazy as _
 class AccountsConfig(AppConfig):
     name = 'accounts'
     # for translation of the name of "Accounts" app displayed in admin.
-    verbose_name = _("Accounts")
\ No newline at end of file
+    verbose_name = _("Accounts")
diff --git a/accounts/tests.py b/accounts/tests.py
index 7ce503c2dd97ba78597f6ff6e4393132753573f6..9a30df3b5ce14e751c2215fafcf2141c38ee9946 100644
--- a/accounts/tests.py
+++ b/accounts/tests.py
@@ -1,3 +1,3 @@
-from django.test import TestCase
+from django.test import TestCase  # noqa
 
 # Create your tests here.
diff --git a/accounts/views.py b/accounts/views.py
index 91ea44a218fbd2f408430959283f0419c921093e..6100593bc427cadce19dee2f7eb0c7f1473a8ad9 100644
--- a/accounts/views.py
+++ b/accounts/views.py
@@ -1,3 +1,3 @@
-from django.shortcuts import render
+from django.shortcuts import render  # noqa
 
 # Create your views here.
diff --git a/course/__init__.py b/course/__init__.py
index 1dab58eb27c37a210fe8f076e8ff8680cf9ade32..10308e50109453da49fbc2072499f878365a0e17 100644
--- a/course/__init__.py
+++ b/course/__init__.py
@@ -1 +1 @@
-default_app_config = 'course.apps.CourseConfig'
\ No newline at end of file
+default_app_config = 'course.apps.CourseConfig'
diff --git a/course/apps.py b/course/apps.py
index 02031fe5851921f4844a24458a5051bcb47b6c17..58f78b149194b87a83c9d41cb45ac2bfa2dece17 100644
--- a/course/apps.py
+++ b/course/apps.py
@@ -8,4 +8,4 @@ class CourseConfig(AppConfig):
     verbose_name = _("Course module")
 
     def ready(self):
-        import course.receivers
\ No newline at end of file
+        import course.receivers  # noqa
diff --git a/course/constants.py b/course/constants.py
index f17cd17ebbef40d7af80574763047f65506567eb..063ab3dd6637ff9d35e4114f7eead6394cd7db83 100644
--- a/course/constants.py
+++ b/course/constants.py
@@ -73,7 +73,7 @@ PARTICIPATION_STATUS_CHOICES = (
 
 # {{{ participation permission
 
-class participation_permission:
+class participation_permission:  # noqa
     edit_course = "edit_course"
     use_admin_interface = "use_admin_interface"
 
diff --git a/course/enrollment.py b/course/enrollment.py
index 6e7386550b7781fc238ea3d8c0b868a77597b597..460dc2150b301a085505494feb7078bc1a5540bc 100644
--- a/course/enrollment.py
+++ b/course/enrollment.py
@@ -67,7 +67,7 @@ from course.utils import course_view, render_course_page
 
 from relate.utils import StyledForm, StyledModelForm
 
-from pytools.lex import RE as REBase
+from pytools.lex import RE as REBase  # noqa
 
 # {{{ for mypy
 
diff --git a/course/flow.py b/course/flow.py
index 74d6cac8d5da767d7526dc96b0344995f38e35c2..dfa2b1bf913598c1ace75633eaaeef7c8fb49d58 100644
--- a/course/flow.py
+++ b/course/flow.py
@@ -2281,7 +2281,7 @@ class FlowPageInteractionEmailForm(StyledForm):
         self.fields["message"] = forms.CharField(
                 required=True,
                 widget=forms.Textarea,
-                help_text= string_concat(
+                help_text=string_concat(
                     _("Your questions about page %s . ") % review_uri,
                     _("Notice that <strong>only</strong> questions "
                       "for that page will be answered."),
diff --git a/course/page/base.py b/course/page/base.py
index 741ca898b0e4c26913cb36ec975fa4f816930db8..a5742323b4a021056f0d78d8c01d9e101de7b2e8 100644
--- a/course/page/base.py
+++ b/course/page/base.py
@@ -995,20 +995,20 @@ class PageBaseWithHumanTextFeedback(PageBase):
                 msg.send()
 
         if (grading_form.cleaned_data["notes"]
-            and grading_form.cleaned_data["notify_instructor"]
-            and page_context.flow_session):
+                and grading_form.cleaned_data["notify_instructor"]
+                and page_context.flow_session):
             with translation.override(settings.RELATE_ADMIN_EMAIL_LOCALE):
                 from django.template.loader import render_to_string
-                from django.urls import reverse
-                message = render_to_string("course/grade-internal-notes-notify.txt", {
-                    "page_title": self.title(page_context, page_data),
-                    "course": page_context.course,
-                    "participation": page_context.flow_session.participation,
-                    "notes_text": grade_data["notes"],
-                    "flow_session": page_context.flow_session,
-                    "review_uri": page_context.page_uri,
-                    "sender": request.user
-                    })
+                message = render_to_string("course/grade-internal-notes-notify.txt",
+                        {
+                            "page_title": self.title(page_context, page_data),
+                            "course": page_context.course,
+                            "participation": page_context.flow_session.participation,
+                            "notes_text": grade_data["notes"],
+                            "flow_session": page_context.flow_session,
+                            "review_uri": page_context.page_uri,
+                            "sender": request.user
+                            })
 
                 from django.core.mail import EmailMessage
                 msg = EmailMessage(
diff --git a/course/page/inline.py b/course/page/inline.py
index caa856ca723be153de54489fe11a3ded0ab996a5..d1fb92b393e229bd4c910bfcf1c37a38650e36bb 100644
--- a/course/page/inline.py
+++ b/course/page/inline.py
@@ -43,7 +43,7 @@ import re
 
 # {{{ multiple text question
 
-from crispy_forms.layout import Layout, Field, HTML
+from crispy_forms.layout import Layout, HTML
 from crispy_forms.bootstrap import PrependedAppendedText
 
 
@@ -459,11 +459,12 @@ class ChoicesAnswer(AnswerBase):
     def get_correct_answer_text(self, page_context):
         corr_idx = self.correct_indices()[0]
         return ("%s%s%s"
-                % (getattr(self.answers_desc, "prepended_text", "").strip(),
-                   self.process_choice_string(
-                       page_context, self.answers_desc.choices[corr_idx]).lstrip(),
-                   getattr(self.answers_desc, "appended_text", "").strip())
-                   )
+                % (
+                    getattr(self.answers_desc, "prepended_text", "").strip(),
+                    self.process_choice_string(
+                        page_context, self.answers_desc.choices[corr_idx]).lstrip(),
+                    getattr(self.answers_desc, "appended_text", "").strip())
+                )
 
     def get_max_correct_answer_len(self, page_context):
         return max([len(answer) for answer in
@@ -821,7 +822,7 @@ class InlineMultiQuestion(TextQuestionBase, PageBaseWithValue):
                             correctness_list.append(answer_instance.get_correctness(
                                     answer[answer_instance.name]))
 
-                    # The answer doesn't exist for newly added question 
+                    # The answer doesn't exist for newly added question
                     # for pages which have been submitted.
                     except KeyError:
                         correctness_list.append(1)
diff --git a/course/templatetags/coursetags.py b/course/templatetags/coursetags.py
index bda5a5ac1a9a8ae198d369ec72cffc24058f2f82..c48bf73d1ea8ae2a24c42a1fc70558ee81e7066a 100644
--- a/course/templatetags/coursetags.py
+++ b/course/templatetags/coursetags.py
@@ -30,6 +30,7 @@ register = Library()
 
 # {{{ get language_code in JS traditional naming format
 
+
 class GetCurrentLanguageJsFmtNode(Node):
     def __init__(self, variable):
         self.variable = variable
@@ -39,6 +40,7 @@ class GetCurrentLanguageJsFmtNode(Node):
         context[self.variable] = js_lang_name
         return ''
 
+
 @register.tag("get_current_js_lang_name")
 def do_get_current_js_lang_name(parser, token):
     """
diff --git a/course/tests.py b/course/tests.py
index 7ce503c2dd97ba78597f6ff6e4393132753573f6..9a30df3b5ce14e751c2215fafcf2141c38ee9946 100644
--- a/course/tests.py
+++ b/course/tests.py
@@ -1,3 +1,3 @@
-from django.test import TestCase
+from django.test import TestCase  # noqa
 
 # Create your tests here.
diff --git a/relate/utils.py b/relate/utils.py
index 52ad19b9bd45da8e6f0ac654a42c7800df09e0eb..54e15f787529b0e7277131f2d2a2dd4c3ae14bcc 100644
--- a/relate/utils.py
+++ b/relate/utils.py
@@ -267,7 +267,7 @@ def retry_transaction(f, args, kwargs={}, max_tries=None, serializable=None):
         sleep(uniform(0.05, 0.2))
 
 
-class retry_transaction_decorator(object):
+class retry_transaction_decorator(object):  # noqa
     def __init__(self, max_tries=None, serializable=None):
         # type: (Optional[int], Optional[bool]) -> None
         self.max_tries = max_tries
diff --git a/setup.cfg b/setup.cfg
index 77f81d3bfbff0b437d7d65c0bcda8064887aa084..4670a3c154b4d105bd48cc15a2a39b9c8ead208f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,3 +1,4 @@
 [flake8]
 ignore = E126,E127,E128,E123,E226,E241,E242,E265,E402,W503
 max-line-length=85
+exclude=course/migrations,accounts/migrations,static,components,course/mdx_mathjax.py