SyntaxError: invalid syntax ： if not 0 <= time_low < 1<<32L:

原文鏈接：http://www.one2know.cn/bug5/

• 報錯
  Traceback (most recent call last):
  File "D:/PyCharm 5.0.3/WorkSpace/2.NLP/8.高階實踐/1.PipelineQ.py", line 1, in
  import nltk
  File "D:\Anaconda3\lib\site-packages\nltk_ init_.py", line 143, in
  from nltk.chunk import *
  File "D:\Anaconda3\lib\site-packages\nltk\chunk_ init_.py", line 157, in
  from nltk.chunk.api import ChunkParserI
  File "D:\Anaconda3\lib\site-packages\nltk\chunk\api.py", line 13, in
  from nltk.parse import ParserI
  File "D:\Anaconda3\lib\site-packages\nltk\parse_ init_.py", line 100, in
  from nltk.parse.transitionparser import TransitionParser
  File "D:\Anaconda3\lib\site-packages\nltk\parse\transitionparser.py", line 22, in
  from sklearn.datasets import load_svmlight_file
  File "D:\Python37\Lib\site-packages\sklearn_ init_.py", line 76, in
  from .base import clone
  File "D:\Python37\Lib\site-packages\sklearn\base.py", line 16, in
  from .utils import IS_32BIT
  File "D:\Python37\Lib\site-packages\sklearn\utils_init.py", line 17, in
  from . import joblib
  File "D:\Python37\Lib\site-packages\sklearn\utils_joblib.py", line 8, in
  import joblib
  File "D:\Python37\Lib\site-packages\joblib_ init .py", line 119, in
  from .parallel import Parallel
  File "D:\Python37\Lib\site-packages\joblib\parallel.py", line 28, in
  from ._parallel_backends import (FallbackToBackend, MultiprocessingBackend,
  File "D:\Python37\Lib\site-packages\joblib_parallel_backends.py", line 20, in
  from .pool import MemmappingPool
  File "D:\Python37\Lib\site-packages\joblib\pool.py", line 33, in
  from ._memmapping_reducer import get_memmapping_reducers
  File "D:\Python37\Lib\site-packages\joblib_memmapping_reducer.py", line 17, in
  from uuid import uuid4
  File "D:\Python37\Lib\site-packages\uuid.py", line 138
  if not 0 <= time_low < 1<<32L:

SyntaxError: invalid syntax

• 原因
  uuid版本不對，導致語法錯誤
• 解決
  在系統命令行卸載uuid：
  pip uninstall uuid
  在Anacanda3中重新安裝：
  pip install uuid