Remove unused imports from common, as reported by pylint.

common/djangoapps/cache_toolbox/core.py

@@ -12,7 +12,6 @@ from django.core.cache import cache
 from django.db import DEFAULT_DB_ALIAS
 
 from . import app_settings
-from xmodule.contentstore.content import StaticContent
 
 
 def get_instance(model, instance_or_pk, timeout=None, using=None):

common/djangoapps/course_groups/cohorts.py

@@ -3,7 +3,6 @@ This file contains the logic for cohort groups, as exposed internally to the
 forums, and to the cohort admin views.
 """
 
-from django.contrib.auth.models import User
 from django.http import Http404
 import logging
 import random
@@ -27,7 +26,7 @@ def local_random():
     """
     # ironic, isn't it?
     global _local_random
-    
+
     if _local_random is None:
         _local_random = random.Random()
 

common/djangoapps/course_groups/views.py

 from django_future.csrf import ensure_csrf_cookie
-from django.contrib.auth.decorators import login_required
 from django.views.decorators.http import require_POST
 from django.contrib.auth.models import User
-from django.core.context_processors import csrf
 from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
 from django.core.urlresolvers import reverse
-from django.http import HttpResponse, HttpResponseForbidden, Http404
-from django.shortcuts import redirect
+from django.http import HttpResponse
 import json
 import logging
 import re
 
 from courseware.courses import get_course_with_access
-from mitxmako.shortcuts import render_to_response, render_to_string
+from mitxmako.shortcuts import render_to_response
 
-from .models import CourseUserGroup
 from . import cohorts
 
-import track.views
-
 
 log = logging.getLogger(__name__)
 

common/djangoapps/mitxmako/makoloader.py

@@ -7,7 +7,6 @@ from django.template.loaders.filesystem import Loader as FilesystemLoader
 from django.template.loaders.app_directories import Loader as AppDirectoriesLoader
 
 from mitxmako.template import Template
-import mitxmako.middleware
 
 import tempdir
 

common/djangoapps/status/status.py

@@ -6,7 +6,6 @@ from django.conf import settings
 import json
 import logging
 import os
-import sys
 
 log = logging.getLogger(__name__)
 

common/djangoapps/student/management/commands/6002exportusers.py

@@ -11,12 +11,7 @@
 import datetime
 import json
 
-import os.path
-
-from lxml import etree
-
 from django.core.management.base import BaseCommand
-from django.conf import settings
 from django.contrib.auth.models import User
 
 from student.models import UserProfile

common/djangoapps/student/management/commands/6002importusers.py

@@ -3,17 +3,11 @@
 ## See export for more info
 
 
-import datetime
 import json
 
 import dateutil.parser
 
-import os.path
-
-from lxml import etree
-
 from django.core.management.base import BaseCommand
-from django.conf import settings
 from django.contrib.auth.models import User
 
 from student.models import UserProfile

common/djangoapps/student/management/commands/assigngroups.py

-import os.path
-
-from lxml import etree
-
 from django.core.management.base import BaseCommand
-from django.conf import settings
 from django.contrib.auth.models import User
 
 import mitxmako.middleware as middleware

common/djangoapps/student/management/commands/create_random_users.py

@@ -2,9 +2,7 @@
 ## A script to create some dummy users
 
 from django.core.management.base import BaseCommand
-from django.conf import settings
-from django.contrib.auth.models import User
-from student.models import UserProfile, CourseEnrollment
+from student.models import CourseEnrollment
 
 from student.views import _do_create_account, get_random_post_override
 

common/djangoapps/student/management/commands/emaillist.py

-import os.path
-
-from lxml import etree
-
 from django.core.management.base import BaseCommand
-from django.conf import settings
 from django.contrib.auth.models import User
 
 import mitxmako.middleware as middleware

common/djangoapps/student/management/commands/massemail.py

-import os.path
-
-from lxml import etree
-
 from django.core.management.base import BaseCommand
-from django.conf import settings
 from django.contrib.auth.models import User
 
 import mitxmako.middleware as middleware

common/djangoapps/student/management/commands/massemailtxt.py

 import os.path
 import time
 
-from lxml import etree
-
 from django.core.management.base import BaseCommand
 from django.conf import settings
-from django.contrib.auth.models import User
 
 import mitxmako.middleware as middleware
 

common/djangoapps/student/management/commands/pearson_dump.py

@@ -2,7 +2,7 @@ from optparse import make_option
 from json import dump
 from datetime import datetime
 
-from django.core.management.base import BaseCommand, CommandError
+from django.core.management.base import BaseCommand
 
 from student.models import TestCenterRegistration
 

common/djangoapps/student/management/commands/pearson_import_conf_zip.py

@@ -3,11 +3,8 @@ import csv
 from zipfile import ZipFile, is_zipfile
 from time import strptime, strftime
 
-from collections import OrderedDict
 from datetime import datetime
-from os.path import isdir
-from optparse import make_option
-from dogapi import dog_http_api, dog_stats_api
+from dogapi import dog_http_api
 
 from django.core.management.base import BaseCommand, CommandError
 from django.conf import settings

common/djangoapps/student/management/commands/tests/test_pearson.py

@@ -14,7 +14,7 @@ from django.test import TestCase
 from django.core.management import call_command
 from nose.plugins.skip import SkipTest
 
-from student.models import User, TestCenterRegistration, TestCenterUser, get_testcenter_registration
+from student.models import User, TestCenterUser, get_testcenter_registration
 
 log = logging.getLogger(__name__)
 

common/djangoapps/student/management/commands/userinfo.py

-import os.path
-
-from lxml import etree
-
 from django.core.management.base import BaseCommand
-from django.conf import settings
 from django.contrib.auth.models import User
 
 import mitxmako.middleware as middleware

common/djangoapps/student/views.py

@@ -4,7 +4,6 @@ import json
 import logging
 import random
 import string
-import sys
 import urllib
 import uuid
 import time
@@ -20,9 +19,9 @@ from django.core.mail import send_mail
 from django.core.urlresolvers import reverse
 from django.core.validators import validate_email, validate_slug, ValidationError
 from django.db import IntegrityError, transaction
-from django.http import HttpResponse, HttpResponseBadRequest, HttpResponseForbidden, HttpResponseNotAllowed, HttpResponseRedirect, Http404
+from django.http import HttpResponse, HttpResponseBadRequest, HttpResponseForbidden, HttpResponseNotAllowed, Http404
 from django.shortcuts import redirect
-from django_future.csrf import ensure_csrf_cookie, csrf_exempt
+from django_future.csrf import ensure_csrf_cookie
 from django.utils.http import cookie_date
 
 from mitxmako.shortcuts import render_to_response, render_to_string
@@ -39,14 +38,11 @@ from certificates.models import CertificateStatuses, certificate_status_for_stud
 from xmodule.course_module import CourseDescriptor
 from xmodule.modulestore.exceptions import ItemNotFoundError
 from xmodule.modulestore.django import modulestore
-from xmodule.modulestore import Location
 
 from collections import namedtuple
 
 from courseware.courses import get_courses, sort_by_announcement
 from courseware.access import has_access
-from courseware.views import get_module_for_descriptor, jump_to
-from courseware.model_data import ModelDataCache
 
 from statsd import statsd
 from pytz import UTC

common/djangoapps/terrain/browser.py

@@ -4,7 +4,6 @@ Browser set up for acceptance tests.
 
 #pylint: disable=E1101
 #pylint: disable=W0613
-#pylint: disable=W0611
 
 from lettuce import before, after, world
 from splinter.browser import Browser
@@ -15,8 +14,9 @@ from selenium.common.exceptions import WebDriverException
 
 # Let the LMS and CMS do their one-time setup
 # For example, setting up mongo caches
-from lms import one_time_startup
-from cms import one_time_startup
+# These names aren't used, but do important work on import.
+from lms import one_time_startup        # pylint: disable=W0611
+from cms import one_time_startup        # pylint: disable=W0611
 
 # There is an import issue when using django-staticfiles with lettuce
 # Lettuce assumes that we are using django.contrib.staticfiles,

common/djangoapps/terrain/course_helpers.py

 # pylint: disable=C0111
 # pylint: disable=W0621
 
-from lettuce import world, step
+from lettuce import world
 from .factories import *
 from django.conf import settings
 from django.http import HttpRequest
@@ -15,7 +15,6 @@ from xmodule.templates import update_templates
 from bs4 import BeautifulSoup
 import os.path
 from urllib import quote_plus
-from lettuce.django import django_url
 
 
 @world.absorb

common/djangoapps/terrain/steps.py

@@ -15,7 +15,7 @@ from lettuce import world, step
 from .course_helpers import *
 from .ui_helpers import *
 from lettuce.django import django_url
-from nose.tools import assert_equals, assert_in
+from nose.tools import assert_equals
 
 from logging import getLogger
 logger = getLogger(__name__)

common/djangoapps/track/middleware.py

 import json
 
-from django.conf import settings
-
 import views
 
 

common/djangoapps/util/models.py

-from django.db import models
-
 # Create your models here.

common/djangoapps/util/tests/test_memcache.py

@@ -4,7 +4,6 @@ Tests for memcache in util app
 
 from django.test import TestCase
 from django.core.cache import get_cache
-from django.conf import settings
 from util.memcache import safe_key
 
 

common/djangoapps/util/tests/test_submit_feedback.py

 """Tests for the Zendesk"""
 
-from django.conf import settings
 from django.contrib.auth.models import AnonymousUser
 from django.http import Http404
 from django.test import TestCase

common/djangoapps/util/views.py

-import datetime
 import json
 import logging
-import pprint
 import sys
 
 from django.conf import settings
-from django.contrib.auth.models import User
-from django.core.context_processors import csrf
-from django.core.mail import send_mail
 from django.core.validators import ValidationError, validate_email
-from django.http import Http404, HttpResponse, HttpResponseBadRequest, HttpResponseNotAllowed, HttpResponseServerError
-from django.shortcuts import redirect
-from django_future.csrf import ensure_csrf_cookie
+from django.http import Http404, HttpResponse, HttpResponseNotAllowed
 from dogapi import dog_stats_api
-from mitxmako.shortcuts import render_to_response, render_to_string
-from urllib import urlencode
+from mitxmako.shortcuts import render_to_response
 import zendesk
 
 import calc

common/lib/capa/capa/checker.py

@@ -10,7 +10,6 @@ import sys
 from path import path
 
 from cStringIO import StringIO
-from collections import defaultdict
 
 from .calc import UndefinedVariable
 from .capa_problem import LoncapaProblem

common/lib/capa/capa/customrender.py

@@ -10,8 +10,6 @@ from .registry import TagRegistry
 
 import logging
 import re
-import shlex  # for splitting quoted strings
-import json
 
 from lxml import etree
 import xml.sax.saxutils as saxutils

common/lib/capa/capa/responsetypes.py

@@ -11,7 +11,6 @@ Used by capa_problem.py
 # standard library imports
 import abc
 import cgi
-import hashlib
 import inspect
 import json
 import logging

common/lib/capa/capa/tests/test_html_render.py

@@ -2,7 +2,6 @@ import unittest
 from lxml import etree
 import os
 import textwrap
-import json
 
 import mock
 

common/lib/capa/capa/util.py

-from calc import evaluator, UndefinedVariable
+from calc import evaluator
 from cmath import isinf
 
 #-----------------------------------------------------------------------------

common/lib/chem/chem/chemcalc.py

 from __future__ import division
-import copy
 from fractions import Fraction
-import logging
-import math
-import operator
-import re
-import numpy
-import numbers
-import scipy.constants
-
-from pyparsing import (Literal, Keyword, Word, nums, StringEnd, Optional,
-                       Forward, OneOrMore, ParseException)
+
+from pyparsing import (Literal, StringEnd, OneOrMore, ParseException)
 import nltk
 from nltk.tree import Tree
 

common/lib/symmath/symmath/formula.py

@@ -10,7 +10,6 @@
 # Provides sympy representation.
 
 import os
-import sys
 import string
 import re
 import logging
@@ -25,8 +24,7 @@ from sympy.physics.quantum.state import *
 # from sympy.core.operations import LatticeOp
 # import sympy.physics.quantum.qubit
 
-import urllib
-from xml.sax.saxutils import escape, unescape
+from xml.sax.saxutils import unescape
 import sympy
 import unicodedata
 from lxml import etree

common/lib/symmath/symmath/symmath_check.py

@@ -8,10 +8,6 @@
 #
 # Takes in math expressions given as Presentation MathML (from ASCIIMathML), converts to Content MathML using SnuggleTeX
 
-import os
-import sys
-import string
-import re
 import traceback
 from .formula import *
 import logging

common/lib/xmodule/xmodule/modulestore/tests/factories.py

 from factory import Factory, lazy_attribute_sequence, lazy_attribute
-from time import gmtime
 from uuid import uuid4
 from xmodule.modulestore import Location
 from xmodule.modulestore.django import modulestore

common/lib/xmodule/xmodule/modulestore/tests/test_modulestore.py

-from nose.tools import assert_equals, assert_raises, assert_not_equals, with_setup
+from nose.tools import assert_equals, assert_raises
 
-from xmodule.modulestore.exceptions import ItemNotFoundError, NoPathToItem
+from xmodule.modulestore.exceptions import ItemNotFoundError
 from xmodule.modulestore.search import path_to_location
 
 

common/lib/xmodule/xmodule/modulestore/tests/test_mongo.py

 import pymongo
 
-from mock import Mock
 from nose.tools import assert_equals, assert_raises, assert_not_equals, assert_false
 from pprint import pprint
 

common/lib/xmodule/xmodule/open_ended_grading_classes/combined_open_ended_modulev1.py

 import json
 import logging
 from lxml import etree
-from lxml.html import rewrite_links
 from xmodule.timeinfo import TimeInfo
 from xmodule.capa_module import ComplexEncoder
-from xmodule.editing_module import EditingDescriptor
 from xmodule.progress import Progress
 from xmodule.stringify import stringify_children
-from xmodule.xml_module import XmlDescriptor
 import self_assessment_module
 import open_ended_module
 from .combined_open_ended_rubric import CombinedOpenEndedRubric, GRADER_TYPE_IMAGE_DICT, HUMAN_GRADER_TYPE, LEGEND_LIST

common/lib/xmodule/xmodule/open_ended_grading_classes/grading_service_module.py

@@ -3,7 +3,6 @@ import json
 import logging
 import requests
 from requests.exceptions import RequestException, ConnectionError, HTTPError
-import sys
 
 from .combined_open_ended_rubric import CombinedOpenEndedRubric
 from lxml import etree

common/lib/xmodule/xmodule/open_ended_grading_classes/open_ended_image_submission.py

@@ -14,9 +14,7 @@ from urlparse import urlparse
 import requests
 from boto.s3.connection import S3Connection
 from boto.s3.key import Key
-import pickle
 import logging
-import re
 
 log = logging.getLogger(__name__)
 

common/lib/xmodule/xmodule/open_ended_grading_classes/open_ended_module.py

@@ -11,10 +11,8 @@ from lxml import etree
 import capa.xqueue_interface as xqueue_interface
 
 from xmodule.capa_module import ComplexEncoder
-from xmodule.editing_module import EditingDescriptor
 from xmodule.progress import Progress
 from xmodule.stringify import stringify_children
-from xmodule.xml_module import XmlDescriptor
 from capa.util import *
 import openendedchild
 

common/lib/xmodule/xmodule/open_ended_grading_classes/openendedchild.py

@@ -3,14 +3,8 @@ import logging
 from lxml.html.clean import Cleaner, autolink_html
 import re
 
-from xmodule.capa_module import ComplexEncoder
 import open_ended_image_submission
-from xmodule.editing_module import EditingDescriptor
-from xmodule.html_checker import check_html
 from xmodule.progress import Progress
-from xmodule.stringify import stringify_children
-from xmodule.xml_module import XmlDescriptor
-from xmodule.modulestore import Location
 from capa.util import *
 from .peer_grading_service import PeerGradingService, MockPeerGradingService
 import controller_query_service

common/lib/xmodule/xmodule/progress.py

@@ -13,7 +13,6 @@ For most subclassing needs, you should only need to reimplement
 frac() and __str__().
 '''
 
-from collections import namedtuple
 import numbers
 
 

common/lib/xmodule/xmodule/schematic_module.py

-import json
 
 from .x_module import XModule, XModuleDescriptor
 

common/lib/xmodule/xmodule/template_module.py

@@ -3,7 +3,6 @@ from xmodule.raw_module import RawDescriptor
 from lxml import etree
 from mako.template import Template
 from xmodule.modulestore.django import modulestore
-import logging
 
 
 class CustomTagModule(XModule):

common/lib/xmodule/xmodule/tests/test_html_module.py

@@ -3,7 +3,6 @@ import unittest
 from mock import Mock
 
 from xmodule.html_module import HtmlModule
-from xmodule.modulestore import Location
 
 from . import get_test_system
 

common/lib/xmodule/xmodule/tests/test_peer_grading.py

@@ -2,10 +2,6 @@ import unittest
 from xmodule.modulestore import Location
 from .import get_test_system
 from test_util_open_ended import MockQueryDict, DummyModulestore
-import json
-
-from xmodule.peer_grading_module import PeerGradingModule, PeerGradingDescriptor
-from xmodule.open_ended_grading_classes.grading_service_module import GradingServiceError
 
 import logging
 

common/lib/xmodule/xmodule/tests/test_randomize_module.py

 import unittest
-from time import strptime
-from fs.memoryfs import MemoryFS
-
-from mock import Mock, patch
-
-from xmodule.modulestore.xml import ImportSystem, XMLModuleStore
 
+from .test_course_module import DummySystem as DummyImportSystem
 
 ORG = 'test_org'
 COURSE = 'test_course'
@@ -13,9 +8,6 @@ COURSE = 'test_course'
 START = '2013-01-01T01:00:00'
 
 
-from .test_course_module import DummySystem as DummyImportSystem
-
-
 class RandomizeModuleTestCase(unittest.TestCase):
     """Make sure the randomize module works"""
     @staticmethod

common/lib/xmodule/xmodule/tests/test_stringify.py

-from nose.tools import assert_equals, assert_true, assert_false
+from nose.tools import assert_equals
 from lxml import etree
 from xmodule.stringify import stringify_children
 

common/lib/xmodule/xmodule/tests/test_util_open_ended.py

 from .import get_test_system
 from xmodule.modulestore import Location
-from xmodule.modulestore.xml import ImportSystem, XMLModuleStore
+from xmodule.modulestore.xml import XMLModuleStore
 from xmodule.tests.test_export import DATA_DIR
 
 OPEN_ENDED_GRADING_INTERFACE = {

common/lib/xmodule/xmodule/timelimit_module.py

-import json
 import logging
 
 from lxml import etree