Site Import fails with ModuleNotFoundError: No module named 'urllib2'

Symptoms

• Site Import fails with ModuleNotFoundError: No module named 'urllib2'
  

  CONFIG_TEXT: command: su jdoe --shell /bin/sh -c '/usr/local/psa/admin/plib/modules/site-import/backend/lib/python/parallels/core/extras/web-stream-downloader/web-stream-downloader --config-file -'
  exit code: 1
  stdout:
  stderr: Traceback (most recent call last):
  File "/usr/local/psa/admin/plib/modules/site-import/backend/lib/python/parallels/core/extras/web-stream-downloader/web-stream-downloader", line 3, in [module]
  from web_stream_downloader.main import main
  File "/opt/psa/admin/plib/modules/site-import/backend/lib/python/parallels/core/extras/web-stream-downloader/web_stream_downloader/main.py", line 4, in [module]
  import urllib2
  ModuleNotFoundError: No module named 'urllib2'

Cause

Site Import extension bug: #EXTPLESK-5726

Resolution

Until the bug is resolved, avoid using this beta feature during the Site Import session setup: