python/IntelliLang-python/resources/META-INF/intellilang-python-support.xml

<idea-plugin>
  <extensions defaultExtensionNs="org.intellij.intelliLang">
    <languageSupport implementation="com.jetbrains.python.intelliLang.PyLanguageInjectionSupport"/>
    <injectionConfig config="resources/pyInjections.xml"/>
  </extensions>
  <extensions defaultExtensionNs="com.intellij">
    <patterns.patternClass className="com.jetbrains.python.patterns.PythonPatterns" alias="py"/>
    <multiHostInjector implementation="com.jetbrains.python.intelliLang.PyConfigurationInjector"/>
    <multiHostInjector implementation="com.jetbrains.python.intelliLang.PyTemporaryInjector"/>
  </extensions>
</idea-plugin>