python Nessun modulo denominato service_identity [duplicate] - python, python-2.7, scrapy

Ho provato ad aggiornare scrapy e quando ho provato a controllare la versione ho ottenuto il seguente errore

C:Windowssystem32>scrapy version -v
:0: UserWarning: You do not have a working installation of the service_identity
module: "No module named service_identity".  Please install it from <https://pyp
i.python.org/pypi/service_identity> and make sure all of its dependencies are sa
tisfied.  Without the service_identity module and a recent enough pyOpenSSL to s
upport it, Twisted can perform only rudimentary TLS client hostname verification
.  Many valid certificate/hostname mappings may be rejected.
Scrapy  : 0.22.2
lxml    : 3.2.3.0
libxml2 : 2.9.0
Twisted : 14.0.0
Python  : 2.7 (r27:82525, Jul  4 2010, 09:01:59) [MSC v.1500 32 bit (Intel)]
Platform: Windows-7-6.1.7601-SP1

cos'è e per favore come risolverlo?

Sto usando Windows 7

risposte:

pip install service_identity

Si lamenta che non hai service_identity. Ulteriori informazioni sul modulo possono essere trovate qui su PyPI