Clean up violations from ichuang's PR

.pylintrc

@@ -35,6 +35,7 @@ load-plugins=
 # it should appear only once).
 disable=
 # C0301: Line too long
+# C0302: Too many lines in module
 # W0141: Used builtin function 'map'
 # W0142: Used * or ** magic
 # R0201: Method could be a function
@@ -42,8 +43,11 @@ disable=
 # R0902: Too many instance attributes
 # R0903: Too few public methods (1/2)
 # R0904: Too many public methods
+# R0911: Too many return statements
+# R0912: Too many branches
 # R0913: Too many arguments
-    C0301,W0141,W0142,R0201,R0901,R0902,R0903,R0904,R0913
+# R0914: Too many local variables
+    C0301,C0302,W0141,W0142,R0201,R0901,R0902,R0903,R0904,R0911,R0912,R0913,R0914
 
 
 [REPORTS]
@@ -92,7 +96,7 @@ zope=no
 # List of members which are set dynamically and missed by pylint inference
 # system, and so shouldn't trigger E0201 when accessed. Python regular
 # expressions are accepted.
-generated-members=REQUEST,acl_users,aq_parent,objects,DoesNotExist,can_read,can_write,get_url,size
+generated-members=REQUEST,acl_users,aq_parent,objects,DoesNotExist,can_read,can_write,get_url,size,content
 
 
 [BASIC]

lms/djangoapps/instructor/management/commands/dump_grades.py

@@ -3,17 +3,12 @@
 # django management command: dump grades to csv files
 # for use by batch processes
 
-import os
-import sys
-import string
-import datetime
-import json
+import csv
 
-from instructor.views import *
+from instructor.views import get_student_grade_summary_data
 from courseware.courses import get_course_by_id
 from xmodule.modulestore.django import modulestore
 
-from django.conf import settings
 from django.core.management.base import BaseCommand
 
 
@@ -45,7 +40,7 @@ class Command(BaseCommand):
         request = self.DummyRequest()
         try:
             course = get_course_by_id(course_id)
-        except Exception as err:
+        except Exception:
             if course_id in modulestore().courses:
                 course = modulestore().courses[course_id]
             else:

lms/djangoapps/instructor/views.py

@@ -11,7 +11,6 @@ import requests
 from requests.status_codes import codes
 import urllib
 from collections import OrderedDict
-import json
 
 from StringIO import StringIO
 
@@ -21,7 +20,6 @@ from django.http import HttpResponse
 from django_future.csrf import ensure_csrf_cookie
 from django.views.decorators.cache import cache_control
 from mitxmako.shortcuts import render_to_response
-import requests
 from django.core.urlresolvers import reverse
 
 from courseware import grades
@@ -36,11 +34,7 @@ from django_comment_client.models import (Role,
 from django_comment_client.utils import has_forum_access
 from psychometrics import psychoanalyze
 from student.models import CourseEnrollment, CourseEnrollmentAllowed
-from xmodule.course_module import CourseDescriptor
-from xmodule.modulestore import Location
 from xmodule.modulestore.django import modulestore
-from xmodule.modulestore.exceptions import InvalidLocationError, ItemNotFoundError, NoPathToItem
-from xmodule.modulestore.search import path_to_location
 import xmodule.graders as xmgraders
 import track.views
 
@@ -48,14 +42,15 @@ from .offline_gradecalc import student_grades, offline_grades_available
 
 log = logging.getLogger(__name__)
 
-template_imports = {'urllib': urllib}
-
 # internal commands for managing forum roles:
 FORUM_ROLE_ADD = 'add'
 FORUM_ROLE_REMOVE = 'remove'
 
 
 def split_by_comma_and_whitespace(s):
+    """
+    Return string s, split by , or whitespace
+    """
     return re.split(r'[\s,]', s)
 
 
@@ -141,7 +136,7 @@ def instructor_dashboard(request, course_id):
         # 'beta', so adding it to get_access_group_name doesn't really make
         # sense.
         name = course_beta_test_group_name(course.location)
-        (group, created) = Group.objects.get_or_create(name=name)
+        (group, _) = Group.objects.get_or_create(name=name)
         return group
 
     # process actions from form POST
@@ -237,13 +232,13 @@ def instructor_dashboard(request, course_id):
             if '/' not in problem_to_reset:				# allow state of modules other than problem to be reset
                 problem_to_reset = "problem/" + problem_to_reset	# but problem is the default
             try:
-                (org, course_name, run) = course_id.split("/")
+                (org, course_name, _) = course_id.split("/")
                 module_state_key = "i4x://" + org + "/" + course_name + "/" + problem_to_reset
                 module_to_reset = StudentModule.objects.get(student_id=student_to_reset.id,
                                                           course_id=course_id,
                                                           module_state_key=module_state_key)
                 msg += "Found module to reset.  "
-            except Exception as e:
+            except Exception:
                 msg += "<font color='red'>Couldn't find module with that urlname.  </font>"
 
         if "Delete student state for problem" in action:
@@ -352,7 +347,7 @@ def instructor_dashboard(request, course_id):
                     return_csv('', datatable, fp=fp)
                     fp.seek(0)
                     files = {'datafile': fp}
-                    msg2, dataset = _do_remote_gradebook(request.user, course, 'post-grades', files=files)
+                    msg2, _ = _do_remote_gradebook(request.user, course, 'post-grades', files=files)
                     msg += msg2
 
 
@@ -423,7 +418,7 @@ def instructor_dashboard(request, course_id):
         datatable = {'header': ['username', 'email'] + profkeys}
         def getdat(u):
             p = u.profile
-            return [u.username, u.email] + [getattr(p,x,'') for x in profkeys]
+            return [u.username, u.email] + [getattr(p, x, '') for x in profkeys]
 
         datatable['data'] = [getdat(u) for u in enrolled_students]
         datatable['title'] = 'Student profile data for course %s' % course_id
@@ -433,17 +428,17 @@ def instructor_dashboard(request, course_id):
     elif 'Download CSV of all responses to problem' in action:
         problem_to_dump = request.POST.get('problem_to_dump','')
 
-        if problem_to_dump[-4:]==".xml":
-            problem_to_dump=problem_to_dump[:-4]
+        if problem_to_dump[-4:] == ".xml":
+            problem_to_dump = problem_to_dump[:-4]
         try:
-            (org, course_name, run)=course_id.split("/")
-            module_state_key="i4x://"+org+"/"+course_name+"/problem/"+problem_to_dump
+            (org, course_name, run) = course_id.split("/")
+            module_state_key = "i4x://" + org + "/" + course_name + "/problem/" + problem_to_dump
             smdat = StudentModule.objects.filter(course_id=course_id,
                                                  module_state_key=module_state_key)
             smdat = smdat.order_by('student')
             msg += "Found %d records to dump " % len(smdat)
         except Exception as err:
-            msg+="<font color='red'>Couldn't find module with that urlname.  </font>"
+            msg += "<font color='red'>Couldn't find module with that urlname.  </font>"
             msg += "<pre>%s</pre>" % escape(err)
             smdat = []
 
@@ -741,7 +736,7 @@ def _list_course_forum_members(course_id, rolename, datatable):
     # make sure datatable is set up properly for display first, before checking for errors
     datatable['header'] = ['Username', 'Full name', 'Roles']
     datatable['title'] = 'List of Forum {0}s in course {1}'.format(rolename, course_id)
-    datatable['data'] = [];
+    datatable['data'] = []
     try:
         role = Role.objects.get(name=rolename, course_id=course_id)
     except Role.DoesNotExist:
@@ -923,7 +918,7 @@ def get_student_grade_summary_data(request, course, course_id, get_grades=True,
         datarow = [student.id, student.username, student.profile.name, student.email]
         try:
             datarow.append(student.externalauthmap.external_email)
-        except:  	# ExternalAuthMap.DoesNotExist
+        except:  # ExternalAuthMap.DoesNotExist
             datarow.append('')
 
         if get_grades:
@@ -1040,7 +1035,8 @@ def _do_enroll_students(course, course_id, students, overload=False):
     datatable['data'] = [[x, status[x]] for x in status]
     datatable['title'] = 'Enrollment of students'
 
-    def sf(stat): return [x for x in status if status[x] == stat]
+    def sf(stat):
+        return [x for x in status if status[x] == stat]
 
     data = dict(added=sf('added'), rejected=sf('rejected') + sf('exists'),
                 deleted=sf('deleted'), datatable=datatable)
@@ -1136,7 +1132,7 @@ def dump_grading_context(course):
     '''
     msg = "-----------------------------------------------------------------------------\n"
     msg += "Course grader:\n"
-    
+
     msg += '%s\n' % course.grader.__class__
     graders = {}
     if isinstance(course.grader, xmgraders.WeightedSubsectionsGrader):
@@ -1151,7 +1147,7 @@ def dump_grading_context(course):
 
     gc = course.grading_context
     msg += "graded sections:\n"
-    
+
     msg += '%s\n' % gc['graded_sections'].keys()
     for (gs, gsvals) in gc['graded_sections'].items():
         msg += "--> Section %s:\n" % (gs)

lms/djangoapps/open_ended_grading/views.py

@@ -27,8 +27,6 @@ from mitxmako.shortcuts import render_to_string
 
 log = logging.getLogger(__name__)
 
-template_imports = {'urllib': urllib}
-
 system = ModuleSystem(
     ajax_url=None,
     track_function=None,