title: Scrapy Settings with ENV SCRAPY_SETTINGS_MODULE not working
body: <p>I want to split my settings in to <code>production.py</code> and <code>local.py</code>. Different settings are loaded in different environments, which I define in the ENV variable <code>SCRAPY_SETTINGS_MODULE</code> as <code>project.local</code> or <code>project.production</code>.</p>
  
  <p>Problem is, whenever I define the ENV var and run <code>scrapy crawl myspider</code> I get this error:</p>
  
  <blockquote>
    <p>ModuleNotFoundError: No module named 'project'</p>
  </blockquote>
  
  <p>If I don't define <code>SCRAPY_SETTINGS_MODULE</code>, then it is set to its default which is <code>project.settings</code>, and it throws no error. If I set the ENV var to its default value, I still get <code>ModuleNotFoundError</code> above.</p>
  
  <p>So basically, it can import <code>project.settings</code> which is its default value, but if I set <code>SCRAPY_SETTINGS_MODULE=project.settings</code> then it throws an error.</p>