Python program startup report: ModuleNotFoundError: No module named '_lzma'

solution:

File "/usr/local/lib/python3.7/lzma.py", line 27, in <module>
    from _lzma import *
ModuleNotFoundError: No module named '_lzma'

yum install xz-devel

yum install python-backports-lzma

pip install backports.lzma

# Then find the lzma.py file, vi command to rewrite it

before fixing
 

 
    from _lzma import *
    from _lzma import _encode_filter_properties, _decode_filter_properties

after modification 

try:
    from _lzma import *
    from _lzma import _encode_filter_properties, _decode_filter_properties
except ImportError:
    from backports.lzma import *
    from backports.lzma import _encode_filter_properties, _decode_filter_properties