Use redis-py has error

[orangle]

I used pip install -r requirements.txt to install python packages, the default redis-py is 3.0.1.
when i start python redis_monitor.py, some error happened

2019-01-31 13:17:39.020112
Traceback (most recent call last):
  File "redis_monitor.py", line 88, in run
    self.LogInfo(redis_info, current_time, self.last)
  File "redis_monitor.py", line 185, in LogInfo
    expired, evicted, hit_rate, commands, used_memory, peak_memory)
  File "/usr/local/redis-monitor/src/dataprovider/redisprovider.py", line 33, in save_keys_Info
    self.conn.zadd(server +':'+ rediskey, score, data)
  File "/usr/lib/python2.7/site-packages/redis/client.py", line 2263, in zadd
    for pair in iteritems(mapping):
  File "/usr/lib/python2.7/site-packages/redis/_compat.py", line 94, in iteritems
    return x.iteritems()
AttributeError: 'int' object has no attribute 'iteritems'

then I found redis-py 3.xx had some changes https://github.com/andymccurdy/redis-py#mset-msetnx-and-zadd

def mset(self, mapping):
def msetnx(self, mapping):
def zadd(self, name, mapping, nx=False, xx=False, ch=False, incr=False):

so, we need do some compatible or prompt user to install redis-py 2.x version?

[LittlePeng]

you can try one of the following

1. fix requirements.txt with special version redis-py 2.x
2. replace zadd(key, field, val) -> zadd(key, {field:val}) in redisprovider.py

PR welcome

[miaocbin]

pip install -r requirements.txt

DEPRECATION: Python 2.7 reached the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 is no longer maintained. A future version of pip will drop support for Python 2.7. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support
Looking in indexes: http://mirrors.cloud.aliyuncs.com/pypi/simple/
Collecting python-dateutil
Downloading http://mirrors.cloud.aliyuncs.com/pypi/packages/d4/70/d60450c3dd48ef87586924207ae8907090de0b306af2bce5d134d78615cb/python_dateutil-2.8.1-py2.py3-none-any.whl (227 kB)
|████████████████████████████████| 227 kB 21.6 MB/s
Collecting redis
Downloading http://mirrors.cloud.aliyuncs.com/pypi/packages/f0/05/1fc7feedc19c123e7a95cfc9e7892eb6cdd2e5df4e9e8af6384349c1cc3d/redis-3.4.1-py2.py3-none-any.whl (71 kB)
|████████████████████████████████| 71 kB 42.2 MB/s
Collecting tornado
Downloading http://mirrors.cloud.aliyuncs.com/pypi/packages/e6/78/6e7b5af12c12bdf38ca9bfe863fcaf53dc10430a312d0324e76c1e5ca426/tornado-5.1.1.tar.gz (516 kB)
|████████████████████████████████| 516 kB 32.5 MB/s
ERROR: Command errored out with exit status 1:
command: /usr/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-zaKVA7/tornado/setup.py'"'"'; file='"'"'/tmp/pip-install-zaKVA7/tornado/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-install-zaKVA7/tornado/pip-egg-info
cwd: /tmp/pip-install-zaKVA7/tornado/
Complete output (17 lines):
Traceback (most recent call last):
File "", line 1, in
File "/tmp/pip-install-zaKVA7/tornado/setup.py", line 195, in
**kwargs
File "/usr/lib64/python2.7/distutils/core.py", line 112, in setup
_setup_distribution = dist = klass(attrs)
File "/usr/lib/python2.7/site-packages/setuptools/dist.py", line 269, in init
_Distribution.init(self,attrs)
File "/usr/lib64/python2.7/distutils/dist.py", line 287, in init
self.finalize_options()
File "/usr/lib/python2.7/site-packages/setuptools/dist.py", line 302, in finalize_options
ep.load()(self, ep.name, value)
File "/usr/lib/python2.7/site-packages/pkg_resources/init.py", line 2341, in load
return self.resolve()
File "/usr/lib/python2.7/site-packages/pkg_resources/init.py", line 2351, in resolve
raise ImportError(str(exc))
ImportError: 'module' object has no attribute 'check_specifier'
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.