`Traceback (most recent call last):


 "C:\Python27\lib\site-packages\azure_devtools\scenario_tests\base.py", line 140, in setUp

patch(self)


 "f:\projects\ecosystem\azure-cli-fork\src\azure-cli-testsdk\azure\cli\testsdk\patches.py", line 75, in patch_long_run_operation_delay

_shortcut_long_run_operation)


 "C:\Python27\lib\site-packages\azure_devtools\scenario_tests\patches.py", line 36, in mock_in_unit_test

mp.__enter__()


 "C:\Python27\lib\site-packages\mock\mock.py", line 1353, in __enter__

self.target = self.getter()


 "C:\Python27\lib\site-packages\mock\mock.py", line 1523, in <lambda>

getter = lambda: _importer(target)


 "C:\Python27\lib\site-packages\mock\mock.py", line 1210, in _importer

thing = _dot_lookup(thing, comp, import_path)


 "C:\Python27\lib\site-packages\mock\mock.py", line 1199, in _dot_lookup

__import__(import_path)


 "C:\Python27\lib\site-packages\msrestazure\polling\arm_polling.py", line 34, in <module>

from msrest.polling import PollingMethod
ImportError: No module named polling`

Traceback (most recent call last):


 "/usr/lib/python3.6/site-packages/youtube_dl/YoutubeDL.py", line 1859, in process_info

partial_success = dl(fname, new_info)


 "/usr/lib/python3.6/site-packages/youtube_dl/YoutubeDL.py", line 1807, in dl

return fd.download(name, info)


 "/usr/lib/python3.6/site-packages/youtube_dl/downloader/common.py", line 361, in download

return self.real_download(filename, info_dict)


 "/usr/lib/python3.6/site-packages/youtube_dl/downloader/dash.py", line 45, in real_download

success, frag_content = self._download_fragment(ctx, fragment_url, info_dict)


 "/usr/lib/python3.6/site-packages/youtube_dl/downloader/fragment.py", line 97, in _download_fragment

'http_headers': headers or info_dict.get('http_headers'),


 "/usr/lib/python3.6/site-packages/youtube_dl/downloader/common.py", line 361, in download

return self.real_download(filename, info_dict)


 "/usr/lib/python3.6/site-packages/youtube_dl/downloader/http.py", line 238, in real_download

raise ContentTooShortError(byte_counter, int(data_len))
youtube_dl.utils.ContentTooShortError: Downloaded 2583388 bytes, expected 11816025 bytes
