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Not compatible with PyHive in Python 3 due to dynamic modify TCLIService

See original GitHub issue

Package versions:

impyla==0.14.0
thrift==0.10.0
thrift-sasl==0.3.0
thriftpy==0.3.9
sasl==0.2.1
PyHive==0.5.0

Reproduce steps:

Python 3.6.3 (default, Oct 24 2017, 14:48:20) 
[GCC 7.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import impala.dbapi
>>> import pyhive.hive
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/guyskk/ym/waimaietl/.venv/lib/python3.6/site-packages/pyhive/hive.py", line 11, in <module>
    from TCLIService import constants
ImportError: cannot import name 'constants'
>>>

It was caused by https://github.com/cloudera/impyla/blob/master/impala/_thrift_api.py#L80,

# dynamically load the HS2 modules
ExecStats = load(os.path.join(thrift_dir, 'ExecStats.thrift'),
                     include_dirs=[thrift_dir])
TCLIService = load(os.path.join(thrift_dir, 'TCLIService.thrift'),
                       include_dirs=[thrift_dir])
ImpalaService = load(os.path.join(thrift_dir, 'ImpalaService.thrift'),
                         include_dirs=[thrift_dir])
sys.modules[ExecStats.__name__] = ExecStats
sys.modules[TCLIService.__name__] = TCLIService   # <-----here!!!
sys.modules[ImpalaService.__name__] = ImpalaService

And PyHive also includes a TCLIService module, they conflict.