title: OSError when running puppeteer on raspberry pi
body: <p>I am trying to make my RP a server for some web automation tasks so I installed <code>python 3.7</code> and <a href="https://pypi.org/project/pyppeteer/" rel="nofollow noreferrer">pypputeer</a> (Python's version for Googlel's puppeteer). The problem is that my code that run smoothly on my OSX gives me the following error on the PI:</p>
  
  <pre><code>    Traceback (most recent call last):
    File "main.py", line 45, in &lt;module&gt;
      asyncio.get_event_loop().run_until_complete(main())
    File "/usr/local/lib/python3.7/asyncio/base_events.py", line 568, in run_until_complete
      return future.result()
    File "main.py", line 16, in main
      browser = await launch(headless=True)
    File "/usr/local/lib/python3.7/site-packages/pyppeteer/launcher.py", line 311, in launch
      return await Launcher(options, **kwargs).launch()
    File "/usr/local/lib/python3.7/site-packages/pyppeteer/launcher.py", line 169, in launch
      **options,
    File "/usr/local/lib/python3.7/subprocess.py", line 756, in __init__
      restore_signals, start_new_session)
    File "/usr/local/lib/python3.7/subprocess.py", line 1499, in _execute_child
      raise child_exception_type(errno_num, err_msg, err_filename)
  OSError: [Errno 8] Exec format error: '/home/pi/.local/share/pyppeteer/local-chromium/575458/chrome-linux/chrome'
  </code></pre>
  
  <p>The code only starts chromium in headless mode:</p>
  
  <pre><code>async def main():
      browser = await launch(headless=True)
      page = await browser.newPage()
      await page.goto(URL_FOR_SCRAPING)
  
  asyncio.get_event_loop().run_until_complete(main())
  </code></pre>
  
  <p>I tried to install all the Debian dependencies from <a href="https://github.com/GoogleChrome/puppeteer/blob/master/docs/troubleshooting.md#chrome-headless-doesnt-launch" rel="nofollow noreferrer">here</a> and also make <code>pypputeer</code> install chromium again like it does at first time. but nothing seems to solve this error. There is also <a href="https://github.com/GoogleChrome/puppeteer/issues/807" rel="nofollow noreferrer">this Github post</a> that doens't seem to be helpful. Does anyone know what can be done?</p>