Add requirements.txt

[yihong0618]

Some test failed I don't know why.
e.g.
https://github.com/yihong0618/nebula-python/actions/runs/855718226

close #105

[yihong0618]

#104

[laura-ding]

line 57-61 can be deleted, directly to use requirements.txt is ok.

[yihong0618]

Done

[laura-ding]

Some test failed I don't know why.
e.g.
https://github.com/yihong0618/nebula-python/actions/runs/855718226

Maybe the errorcode change of server, i need to update the thrift file

[yihong0618]

Some test failed I don't know why.
e.g.
https://github.com/yihong0618/nebula-python/actions/runs/855718226

Maybe the errorcode change of server, i need to update the thrift file

Got it

[yihong0618]

Some test failed I don't know why.
e.g.
https://github.com/yihong0618/nebula-python/actions/runs/855718226

Maybe the errorcode change of server, i need to update the thrift file

FYI

Its strange that 3.7 passed sometimes 3.6 failed

[laura-ding]

Some test failed I don't know why.
e.g.
https://github.com/yihong0618/nebula-python/actions/runs/855718226

Maybe the errorcode change of server, i need to update the thrift file

FYI

Its strange that 3.7 passed sometimes 3.6 failed

because the leader of metad is changed. The randomly selected Meta happens to be the leader, so it succeeds

[laura-ding]

Thanks for your contribution!