windows initialization error

[lv123123long]

When I used python-kafka under windows, I found that I did not have kerberos for windows installed locally. However, during initialization, I would look for this configuration and exit with an error.

my codes：

producer = KafkaProducer(bootstrap_servers = SERVER,
                                 security_protocol = 'PLAIN',
                                 sasl_mechanism = 'PLAIN',
                                 value_serializer = lambda m: json.dumps(m).encode(),
                                 api_version = (0, 10, 2)
                                 )

error：

from kafka import KafkaProducer
  File "D:\otherpython\python3810\lib\site-packages\kafka\__init__.py", line 21, in <module>
    from kafka.admin import KafkaAdminClient
  File "D:\otherpython\python3810\lib\site-packages\kafka\admin\__init__.py", line 4, in <module>
    from kafka.admin.client import KafkaAdminClient
  File "D:\otherpython\python3810\lib\site-packages\kafka\admin\client.py", line 13, in <module>
    from kafka.client_async import KafkaClient, selectors
  File "D:\otherpython\python3810\lib\site-packages\kafka\client_async.py", line 21, in <module>
    from kafka.cluster import ClusterMetadata
  File "D:\otherpython\python3810\lib\site-packages\kafka\cluster.py", line 12, in <module>
    from kafka.conn import collect_hosts
  File "D:\otherpython\python3810\lib\site-packages\kafka\conn.py", line 79, in <module>
    import gssapi
  File "D:\otherpython\python3810\lib\site-packages\gssapi\__init__.py", line 29, in <module>
    import gssapi._win_config  # noqa
  File "D:\otherpython\python3810\lib\site-packages\gssapi\_win_config.py", line 90, in <module>
    configure_windows()
  File "D:\otherpython\python3810\lib\site-packages\gssapi\_win_config.py", line 85, in configure_windows
    error_not_found()
  File "D:\otherpython\python3810\lib\site-packages\gssapi\_win_config.py", line 49, in error_not_found
    raise OSError(
OSError: Could not find KfW installation. Please download and install the 64bit Kerberos for Windows MSI from https://web.mit.edu/KERBEROS/dist and ensure the 'bin' folder (C:\Program Files\MIT\Kerberos\bin) is in your PATH.

[lv123123long]

This is very unreasonable. I did not use Kerberos related protocols, but gssapi was introduced in copy.py and an error was thrown.

[wbarnha]

I see your post in pythongssapi/python-gssapi#290, seems like the issue won't be getting fixed anytime soon.

Best I can do is add another exception handle for OSError beside ImportError and disable gssapi usage:

kafka-python/kafka/conn.py

Lines 77 to 84 in 0dbf746

	# needed for SASL_GSSAPI authentication:
	try:
	import gssapi
	from gssapi.raw.misc import GSSError
	except ImportError:
	#no gssapi available, will disable gssapi mechanism
	gssapi = None
	GSSError = None