lzma压缩 python2.7 install lzma 出错

解决方案：conda install -c conda-forge backports.lzma

或

pip install backports.lzma

try:import lzma
except ImportError:from backports import lzma
#Then use lzma as normal, for example:
assert b"Hello!" == lzma.decompress(lzma.compress(b"Hello!"))