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<h1>Coverage for <b>rest_framework/settings</b> :
<span class='pc_cov'>95%</span>
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44 statements
<span class='run hide_run shortkey_r' onclick='coverage.toggle_lines(this, "run")'>42 run</span>
<span class='mis shortkey_m' onclick='coverage.toggle_lines(this, "mis")'>2 missing</span>
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<p id='t1' class='pln'><span class='str'>"""</span><span class='strut'> </span></p>
<p id='t2' class='pln'><span class='str'>Settings for REST framework are all namespaced in the REST_FRAMEWORK setting.</span><span class='strut'> </span></p>
<p id='t3' class='pln'><span class='str'>For example your project's `settings.py` file might look like this:</span><span class='strut'> </span></p>
<p id='t4' class='pln'><span class='strut'> </span></p>
<p id='t5' class='pln'><span class='str'>REST_FRAMEWORK = {</span><span class='strut'> </span></p>
<p id='t6' class='pln'><span class='str'> 'DEFAULT_RENDERER_CLASSES': (</span><span class='strut'> </span></p>
<p id='t7' class='pln'><span class='str'> 'rest_framework.renderers.JSONRenderer',</span><span class='strut'> </span></p>
<p id='t8' class='pln'><span class='str'> 'rest_framework.renderers.YAMLRenderer',</span><span class='strut'> </span></p>
<p id='t9' class='pln'><span class='str'> )</span><span class='strut'> </span></p>
<p id='t10' class='pln'><span class='str'> 'DEFAULT_PARSER_CLASSES': (</span><span class='strut'> </span></p>
<p id='t11' class='pln'><span class='str'> 'rest_framework.parsers.JSONParser',</span><span class='strut'> </span></p>
<p id='t12' class='pln'><span class='str'> 'rest_framework.parsers.YAMLParser',</span><span class='strut'> </span></p>
<p id='t13' class='pln'><span class='str'> )</span><span class='strut'> </span></p>
<p id='t14' class='pln'><span class='str'>}</span><span class='strut'> </span></p>
<p id='t15' class='pln'><span class='strut'> </span></p>
<p id='t16' class='pln'><span class='str'>This module provides the `api_setting` object, that is used to access</span><span class='strut'> </span></p>
<p id='t17' class='pln'><span class='str'>REST framework settings, checking for user settings first, then falling</span><span class='strut'> </span></p>
<p id='t18' class='pln'><span class='str'>back to the defaults.</span><span class='strut'> </span></p>
<p id='t19' class='pln'><span class='str'>"""</span><span class='strut'> </span></p>
<p id='t20' class='stm run hide_run'><span class='key'>from</span> <span class='nam'>__future__</span> <span class='key'>import</span> <span class='nam'>unicode_literals</span><span class='strut'> </span></p>
<p id='t21' class='pln'><span class='strut'> </span></p>
<p id='t22' class='stm run hide_run'><span class='key'>from</span> <span class='nam'>django</span><span class='op'>.</span><span class='nam'>conf</span> <span class='key'>import</span> <span class='nam'>settings</span><span class='strut'> </span></p>
<p id='t23' class='stm run hide_run'><span class='key'>from</span> <span class='nam'>django</span><span class='op'>.</span><span class='nam'>utils</span> <span class='key'>import</span> <span class='nam'>importlib</span><span class='strut'> </span></p>
<p id='t24' class='pln'><span class='strut'> </span></p>
<p id='t25' class='stm run hide_run'><span class='key'>from</span> <span class='nam'>rest_framework</span> <span class='key'>import</span> <span class='nam'>ISO_8601</span><span class='strut'> </span></p>
<p id='t26' class='stm run hide_run'><span class='key'>from</span> <span class='nam'>rest_framework</span><span class='op'>.</span><span class='nam'>compat</span> <span class='key'>import</span> <span class='nam'>six</span><span class='strut'> </span></p>
<p id='t27' class='pln'><span class='strut'> </span></p>
<p id='t28' class='pln'><span class='strut'> </span></p>
<p id='t29' class='stm run hide_run'><span class='nam'>USER_SETTINGS</span> <span class='op'>=</span> <span class='nam'>getattr</span><span class='op'>(</span><span class='nam'>settings</span><span class='op'>,</span> <span class='str'>'REST_FRAMEWORK'</span><span class='op'>,</span> <span class='nam'>None</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t30' class='pln'><span class='strut'> </span></p>
<p id='t31' class='stm run hide_run'><span class='nam'>DEFAULTS</span> <span class='op'>=</span> <span class='op'>{</span><span class='strut'> </span></p>
<p id='t32' class='pln'> <span class='com'># Base API policies</span><span class='strut'> </span></p>
<p id='t33' class='pln'> <span class='str'>'DEFAULT_RENDERER_CLASSES'</span><span class='op'>:</span> <span class='op'>(</span><span class='strut'> </span></p>
<p id='t34' class='pln'> <span class='str'>'rest_framework.renderers.JSONRenderer'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t35' class='pln'> <span class='str'>'rest_framework.renderers.BrowsableAPIRenderer'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t36' class='pln'> <span class='op'>)</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t37' class='pln'> <span class='str'>'DEFAULT_PARSER_CLASSES'</span><span class='op'>:</span> <span class='op'>(</span><span class='strut'> </span></p>
<p id='t38' class='pln'> <span class='str'>'rest_framework.parsers.JSONParser'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t39' class='pln'> <span class='str'>'rest_framework.parsers.FormParser'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t40' class='pln'> <span class='str'>'rest_framework.parsers.MultiPartParser'</span><span class='strut'> </span></p>
<p id='t41' class='pln'> <span class='op'>)</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t42' class='pln'> <span class='str'>'DEFAULT_AUTHENTICATION_CLASSES'</span><span class='op'>:</span> <span class='op'>(</span><span class='strut'> </span></p>
<p id='t43' class='pln'> <span class='str'>'rest_framework.authentication.SessionAuthentication'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t44' class='pln'> <span class='str'>'rest_framework.authentication.BasicAuthentication'</span><span class='strut'> </span></p>
<p id='t45' class='pln'> <span class='op'>)</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t46' class='pln'> <span class='str'>'DEFAULT_PERMISSION_CLASSES'</span><span class='op'>:</span> <span class='op'>(</span><span class='strut'> </span></p>
<p id='t47' class='pln'> <span class='str'>'rest_framework.permissions.AllowAny'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t48' class='pln'> <span class='op'>)</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t49' class='pln'> <span class='str'>'DEFAULT_THROTTLE_CLASSES'</span><span class='op'>:</span> <span class='op'>(</span><span class='strut'> </span></p>
<p id='t50' class='pln'> <span class='op'>)</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t51' class='pln'><span class='strut'> </span></p>
<p id='t52' class='pln'> <span class='str'>'DEFAULT_CONTENT_NEGOTIATION_CLASS'</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t53' class='pln'> <span class='str'>'rest_framework.negotiation.DefaultContentNegotiation'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t54' class='pln'><span class='strut'> </span></p>
<p id='t55' class='pln'> <span class='com'># Genric view behavior</span><span class='strut'> </span></p>
<p id='t56' class='pln'> <span class='str'>'DEFAULT_MODEL_SERIALIZER_CLASS'</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t57' class='pln'> <span class='str'>'rest_framework.serializers.ModelSerializer'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t58' class='pln'> <span class='str'>'DEFAULT_PAGINATION_SERIALIZER_CLASS'</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t59' class='pln'> <span class='str'>'rest_framework.pagination.PaginationSerializer'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t60' class='pln'> <span class='str'>'DEFAULT_FILTER_BACKENDS'</span><span class='op'>:</span> <span class='op'>(</span><span class='op'>)</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t61' class='pln'><span class='strut'> </span></p>
<p id='t62' class='pln'> <span class='com'># Throttling</span><span class='strut'> </span></p>
<p id='t63' class='pln'> <span class='str'>'DEFAULT_THROTTLE_RATES'</span><span class='op'>:</span> <span class='op'>{</span><span class='strut'> </span></p>
<p id='t64' class='pln'> <span class='str'>'user'</span><span class='op'>:</span> <span class='nam'>None</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t65' class='pln'> <span class='str'>'anon'</span><span class='op'>:</span> <span class='nam'>None</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t66' class='pln'> <span class='op'>}</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t67' class='pln'><span class='strut'> </span></p>
<p id='t68' class='pln'> <span class='com'># Pagination</span><span class='strut'> </span></p>
<p id='t69' class='pln'> <span class='str'>'PAGINATE_BY'</span><span class='op'>:</span> <span class='nam'>None</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t70' class='pln'> <span class='str'>'PAGINATE_BY_PARAM'</span><span class='op'>:</span> <span class='nam'>None</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t71' class='pln'><span class='strut'> </span></p>
<p id='t72' class='pln'> <span class='com'># Authentication</span><span class='strut'> </span></p>
<p id='t73' class='pln'> <span class='str'>'UNAUTHENTICATED_USER'</span><span class='op'>:</span> <span class='str'>'django.contrib.auth.models.AnonymousUser'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t74' class='pln'> <span class='str'>'UNAUTHENTICATED_TOKEN'</span><span class='op'>:</span> <span class='nam'>None</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t75' class='pln'><span class='strut'> </span></p>
<p id='t76' class='pln'> <span class='com'># Browser enhancements</span><span class='strut'> </span></p>
<p id='t77' class='pln'> <span class='str'>'FORM_METHOD_OVERRIDE'</span><span class='op'>:</span> <span class='str'>'_method'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t78' class='pln'> <span class='str'>'FORM_CONTENT_OVERRIDE'</span><span class='op'>:</span> <span class='str'>'_content'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t79' class='pln'> <span class='str'>'FORM_CONTENTTYPE_OVERRIDE'</span><span class='op'>:</span> <span class='str'>'_content_type'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t80' class='pln'> <span class='str'>'URL_ACCEPT_OVERRIDE'</span><span class='op'>:</span> <span class='str'>'accept'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t81' class='pln'> <span class='str'>'URL_FORMAT_OVERRIDE'</span><span class='op'>:</span> <span class='str'>'format'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t82' class='pln'><span class='strut'> </span></p>
<p id='t83' class='pln'> <span class='str'>'FORMAT_SUFFIX_KWARG'</span><span class='op'>:</span> <span class='str'>'format'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t84' class='pln'><span class='strut'> </span></p>
<p id='t85' class='pln'> <span class='com'># Input and output formats</span><span class='strut'> </span></p>
<p id='t86' class='pln'> <span class='str'>'DATE_INPUT_FORMATS'</span><span class='op'>:</span> <span class='op'>(</span><span class='strut'> </span></p>
<p id='t87' class='pln'> <span class='nam'>ISO_8601</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t88' class='pln'> <span class='op'>)</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t89' class='pln'> <span class='str'>'DATE_FORMAT'</span><span class='op'>:</span> <span class='nam'>None</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t90' class='pln'><span class='strut'> </span></p>
<p id='t91' class='pln'> <span class='str'>'DATETIME_INPUT_FORMATS'</span><span class='op'>:</span> <span class='op'>(</span><span class='strut'> </span></p>
<p id='t92' class='pln'> <span class='nam'>ISO_8601</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t93' class='pln'> <span class='op'>)</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t94' class='pln'> <span class='str'>'DATETIME_FORMAT'</span><span class='op'>:</span> <span class='nam'>None</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t95' class='pln'><span class='strut'> </span></p>
<p id='t96' class='pln'> <span class='str'>'TIME_INPUT_FORMATS'</span><span class='op'>:</span> <span class='op'>(</span><span class='strut'> </span></p>
<p id='t97' class='pln'> <span class='nam'>ISO_8601</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t98' class='pln'> <span class='op'>)</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t99' class='pln'> <span class='str'>'TIME_FORMAT'</span><span class='op'>:</span> <span class='nam'>None</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t100' class='pln'><span class='strut'> </span></p>
<p id='t101' class='pln'> <span class='com'># Pending deprecation</span><span class='strut'> </span></p>
<p id='t102' class='pln'> <span class='str'>'FILTER_BACKEND'</span><span class='op'>:</span> <span class='nam'>None</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t103' class='pln'><span class='op'>}</span><span class='strut'> </span></p>
<p id='t104' class='pln'><span class='strut'> </span></p>
<p id='t105' class='pln'><span class='strut'> </span></p>
<p id='t106' class='pln'><span class='com'># List of settings that may be in string import notation.</span><span class='strut'> </span></p>
<p id='t107' class='stm run hide_run'><span class='nam'>IMPORT_STRINGS</span> <span class='op'>=</span> <span class='op'>(</span><span class='strut'> </span></p>
<p id='t108' class='pln'> <span class='str'>'DEFAULT_RENDERER_CLASSES'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t109' class='pln'> <span class='str'>'DEFAULT_PARSER_CLASSES'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t110' class='pln'> <span class='str'>'DEFAULT_AUTHENTICATION_CLASSES'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t111' class='pln'> <span class='str'>'DEFAULT_PERMISSION_CLASSES'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t112' class='pln'> <span class='str'>'DEFAULT_THROTTLE_CLASSES'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t113' class='pln'> <span class='str'>'DEFAULT_CONTENT_NEGOTIATION_CLASS'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t114' class='pln'> <span class='str'>'DEFAULT_MODEL_SERIALIZER_CLASS'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t115' class='pln'> <span class='str'>'DEFAULT_PAGINATION_SERIALIZER_CLASS'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t116' class='pln'> <span class='str'>'DEFAULT_FILTER_BACKENDS'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t117' class='pln'> <span class='str'>'FILTER_BACKEND'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t118' class='pln'> <span class='str'>'UNAUTHENTICATED_USER'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t119' class='pln'> <span class='str'>'UNAUTHENTICATED_TOKEN'</span><span class='op'>,</span><span class='strut'> </span></p>
<p id='t120' class='pln'><span class='op'>)</span><span class='strut'> </span></p>
<p id='t121' class='pln'><span class='strut'> </span></p>
<p id='t122' class='pln'><span class='strut'> </span></p>
<p id='t123' class='stm run hide_run'><span class='key'>def</span> <span class='nam'>perform_import</span><span class='op'>(</span><span class='nam'>val</span><span class='op'>,</span> <span class='nam'>setting_name</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t124' class='pln'> <span class='str'>"""</span><span class='strut'> </span></p>
<p id='t125' class='pln'><span class='str'> If the given setting is a string import notation,</span><span class='strut'> </span></p>
<p id='t126' class='pln'><span class='str'> then perform the necessary import or imports.</span><span class='strut'> </span></p>
<p id='t127' class='pln'><span class='str'> """</span><span class='strut'> </span></p>
<p id='t128' class='stm run hide_run'> <span class='key'>if</span> <span class='nam'>isinstance</span><span class='op'>(</span><span class='nam'>val</span><span class='op'>,</span> <span class='nam'>six</span><span class='op'>.</span><span class='nam'>string_types</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t129' class='stm run hide_run'> <span class='key'>return</span> <span class='nam'>import_from_string</span><span class='op'>(</span><span class='nam'>val</span><span class='op'>,</span> <span class='nam'>setting_name</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t130' class='stm run hide_run'> <span class='key'>elif</span> <span class='nam'>isinstance</span><span class='op'>(</span><span class='nam'>val</span><span class='op'>,</span> <span class='op'>(</span><span class='nam'>list</span><span class='op'>,</span> <span class='nam'>tuple</span><span class='op'>)</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t131' class='stm run hide_run'> <span class='key'>return</span> <span class='op'>[</span><span class='nam'>import_from_string</span><span class='op'>(</span><span class='nam'>item</span><span class='op'>,</span> <span class='nam'>setting_name</span><span class='op'>)</span> <span class='key'>for</span> <span class='nam'>item</span> <span class='key'>in</span> <span class='nam'>val</span><span class='op'>]</span><span class='strut'> </span></p>
<p id='t132' class='stm mis'> <span class='key'>return</span> <span class='nam'>val</span><span class='strut'> </span></p>
<p id='t133' class='pln'><span class='strut'> </span></p>
<p id='t134' class='pln'><span class='strut'> </span></p>
<p id='t135' class='stm run hide_run'><span class='key'>def</span> <span class='nam'>import_from_string</span><span class='op'>(</span><span class='nam'>val</span><span class='op'>,</span> <span class='nam'>setting_name</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t136' class='pln'> <span class='str'>"""</span><span class='strut'> </span></p>
<p id='t137' class='pln'><span class='str'> Attempt to import a class from a string representation.</span><span class='strut'> </span></p>
<p id='t138' class='pln'><span class='str'> """</span><span class='strut'> </span></p>
<p id='t139' class='stm run hide_run'> <span class='key'>try</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t140' class='pln'> <span class='com'># Nod to tastypie's use of importlib.</span><span class='strut'> </span></p>
<p id='t141' class='stm run hide_run'> <span class='nam'>parts</span> <span class='op'>=</span> <span class='nam'>val</span><span class='op'>.</span><span class='nam'>split</span><span class='op'>(</span><span class='str'>'.'</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t142' class='stm run hide_run'> <span class='nam'>module_path</span><span class='op'>,</span> <span class='nam'>class_name</span> <span class='op'>=</span> <span class='str'>'.'</span><span class='op'>.</span><span class='nam'>join</span><span class='op'>(</span><span class='nam'>parts</span><span class='op'>[</span><span class='op'>:</span><span class='op'>-</span><span class='num'>1</span><span class='op'>]</span><span class='op'>)</span><span class='op'>,</span> <span class='nam'>parts</span><span class='op'>[</span><span class='op'>-</span><span class='num'>1</span><span class='op'>]</span><span class='strut'> </span></p>
<p id='t143' class='stm run hide_run'> <span class='nam'>module</span> <span class='op'>=</span> <span class='nam'>importlib</span><span class='op'>.</span><span class='nam'>import_module</span><span class='op'>(</span><span class='nam'>module_path</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t144' class='stm run hide_run'> <span class='key'>return</span> <span class='nam'>getattr</span><span class='op'>(</span><span class='nam'>module</span><span class='op'>,</span> <span class='nam'>class_name</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t145' class='stm run hide_run'> <span class='key'>except</span> <span class='nam'>ImportError</span> <span class='key'>as</span> <span class='nam'>e</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t146' class='stm run hide_run'> <span class='nam'>msg</span> <span class='op'>=</span> <span class='str'>"Could not import '%s' for API setting '%s'. %s: %s."</span> <span class='op'>%</span> <span class='op'>(</span><span class='nam'>val</span><span class='op'>,</span> <span class='nam'>setting_name</span><span class='op'>,</span> <span class='nam'>e</span><span class='op'>.</span><span class='nam'>__class__</span><span class='op'>.</span><span class='nam'>__name__</span><span class='op'>,</span> <span class='nam'>e</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t147' class='stm run hide_run'> <span class='key'>raise</span> <span class='nam'>ImportError</span><span class='op'>(</span><span class='nam'>msg</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t148' class='pln'><span class='strut'> </span></p>
<p id='t149' class='pln'><span class='strut'> </span></p>
<p id='t150' class='stm run hide_run'><span class='key'>class</span> <span class='nam'>APISettings</span><span class='op'>(</span><span class='nam'>object</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t151' class='pln'> <span class='str'>"""</span><span class='strut'> </span></p>
<p id='t152' class='pln'><span class='str'> A settings object, that allows API settings to be accessed as properties.</span><span class='strut'> </span></p>
<p id='t153' class='pln'><span class='str'> For example:</span><span class='strut'> </span></p>
<p id='t154' class='pln'><span class='strut'> </span></p>
<p id='t155' class='pln'><span class='str'> from rest_framework.settings import api_settings</span><span class='strut'> </span></p>
<p id='t156' class='pln'><span class='str'> print api_settings.DEFAULT_RENDERER_CLASSES</span><span class='strut'> </span></p>
<p id='t157' class='pln'><span class='strut'> </span></p>
<p id='t158' class='pln'><span class='str'> Any setting with string import paths will be automatically resolved</span><span class='strut'> </span></p>
<p id='t159' class='pln'><span class='str'> and return the class, rather than the string literal.</span><span class='strut'> </span></p>
<p id='t160' class='pln'><span class='str'> """</span><span class='strut'> </span></p>
<p id='t161' class='stm run hide_run'> <span class='key'>def</span> <span class='nam'>__init__</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>,</span> <span class='nam'>user_settings</span><span class='op'>=</span><span class='nam'>None</span><span class='op'>,</span> <span class='nam'>defaults</span><span class='op'>=</span><span class='nam'>None</span><span class='op'>,</span> <span class='nam'>import_strings</span><span class='op'>=</span><span class='nam'>None</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t162' class='stm run hide_run'> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>user_settings</span> <span class='op'>=</span> <span class='nam'>user_settings</span> <span class='key'>or</span> <span class='op'>{</span><span class='op'>}</span><span class='strut'> </span></p>
<p id='t163' class='stm run hide_run'> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>defaults</span> <span class='op'>=</span> <span class='nam'>defaults</span> <span class='key'>or</span> <span class='op'>{</span><span class='op'>}</span><span class='strut'> </span></p>
<p id='t164' class='stm run hide_run'> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>import_strings</span> <span class='op'>=</span> <span class='nam'>import_strings</span> <span class='key'>or</span> <span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t165' class='pln'><span class='strut'> </span></p>
<p id='t166' class='stm run hide_run'> <span class='key'>def</span> <span class='nam'>__getattr__</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>,</span> <span class='nam'>attr</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t167' class='stm run hide_run'> <span class='key'>if</span> <span class='nam'>attr</span> <span class='key'>not</span> <span class='key'>in</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>defaults</span><span class='op'>.</span><span class='nam'>keys</span><span class='op'>(</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t168' class='stm run hide_run'> <span class='key'>raise</span> <span class='nam'>AttributeError</span><span class='op'>(</span><span class='str'>"Invalid API setting: '%s'"</span> <span class='op'>%</span> <span class='nam'>attr</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t169' class='pln'><span class='strut'> </span></p>
<p id='t170' class='stm run hide_run'> <span class='key'>try</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t171' class='pln'> <span class='com'># Check if present in user settings</span><span class='strut'> </span></p>
<p id='t172' class='stm run hide_run'> <span class='nam'>val</span> <span class='op'>=</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>user_settings</span><span class='op'>[</span><span class='nam'>attr</span><span class='op'>]</span><span class='strut'> </span></p>
<p id='t173' class='stm run hide_run'> <span class='key'>except</span> <span class='nam'>KeyError</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t174' class='pln'> <span class='com'># Fall back to defaults</span><span class='strut'> </span></p>
<p id='t175' class='stm run hide_run'> <span class='nam'>val</span> <span class='op'>=</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>defaults</span><span class='op'>[</span><span class='nam'>attr</span><span class='op'>]</span><span class='strut'> </span></p>
<p id='t176' class='pln'><span class='strut'> </span></p>
<p id='t177' class='pln'> <span class='com'># Coerce import strings into classes</span><span class='strut'> </span></p>
<p id='t178' class='stm run hide_run'> <span class='key'>if</span> <span class='nam'>val</span> <span class='key'>and</span> <span class='nam'>attr</span> <span class='key'>in</span> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>import_strings</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t179' class='stm run hide_run'> <span class='nam'>val</span> <span class='op'>=</span> <span class='nam'>perform_import</span><span class='op'>(</span><span class='nam'>val</span><span class='op'>,</span> <span class='nam'>attr</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t180' class='pln'><span class='strut'> </span></p>
<p id='t181' class='stm run hide_run'> <span class='nam'>self</span><span class='op'>.</span><span class='nam'>validate_setting</span><span class='op'>(</span><span class='nam'>attr</span><span class='op'>,</span> <span class='nam'>val</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t182' class='pln'><span class='strut'> </span></p>
<p id='t183' class='pln'> <span class='com'># Cache the result</span><span class='strut'> </span></p>
<p id='t184' class='stm run hide_run'> <span class='nam'>setattr</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>,</span> <span class='nam'>attr</span><span class='op'>,</span> <span class='nam'>val</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t185' class='stm run hide_run'> <span class='key'>return</span> <span class='nam'>val</span><span class='strut'> </span></p>
<p id='t186' class='pln'><span class='strut'> </span></p>
<p id='t187' class='stm run hide_run'> <span class='key'>def</span> <span class='nam'>validate_setting</span><span class='op'>(</span><span class='nam'>self</span><span class='op'>,</span> <span class='nam'>attr</span><span class='op'>,</span> <span class='nam'>val</span><span class='op'>)</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t188' class='stm run hide_run'> <span class='key'>if</span> <span class='nam'>attr</span> <span class='op'>==</span> <span class='str'>'FILTER_BACKEND'</span> <span class='key'>and</span> <span class='nam'>val</span> <span class='key'>is</span> <span class='key'>not</span> <span class='nam'>None</span><span class='op'>:</span><span class='strut'> </span></p>
<p id='t189' class='pln'> <span class='com'># Make sure we can initialize the class</span><span class='strut'> </span></p>
<p id='t190' class='stm mis'> <span class='nam'>val</span><span class='op'>(</span><span class='op'>)</span><span class='strut'> </span></p>
<p id='t191' class='pln'><span class='strut'> </span></p>
<p id='t192' class='stm run hide_run'><span class='nam'>api_settings</span> <span class='op'>=</span> <span class='nam'>APISettings</span><span class='op'>(</span><span class='nam'>USER_SETTINGS</span><span class='op'>,</span> <span class='nam'>DEFAULTS</span><span class='op'>,</span> <span class='nam'>IMPORT_STRINGS</span><span class='op'>)</span><span class='strut'> </span></p>
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