成功解决RuntimeError: Decompression ‘SNAPPY‘ not available. Options: [‘GZIP‘, ‘UNCOMPRESSED‘]

怼烎@ 2022-12-20 14:58 132阅读 0赞

成功解决RuntimeError: Decompression 'SNAPPY' not available.  Options: \['GZIP', 'UNCOMPRESSED'\]

**目录**

解决问题

解决思路

解决方法

--------------------

## 解决问题 ##

D:\\ProgramData\\Anaconda3\\python.exe E:/Python\_Program/0925KBQNodel/抗辩期模型\_v01\_1105.py  
Traceback (most recent call last):  
  File "E:/Python\_Program/0925KBQNodel/抗辩期模型\_v01\_1105.py", line 31, in <module>  
    df = pd.read\_parquet('./data\_contest\_20201022\_sample.parquet')  
  File "D:\\ProgramData\\Anaconda3\\lib\\site-packages\\pandas\\io\\parquet.py", line 317, in read\_parquet  
    return impl.read(path, columns=columns, \*\*kwargs)  
  File "D:\\ProgramData\\Anaconda3\\lib\\site-packages\\pandas\\io\\parquet.py", line 212, in read  
    return parquet\_file.to\_pandas(columns=columns, \*\*kwargs)  
  File "D:\\ProgramData\\Anaconda3\\lib\\site-packages\\fastparquet\\api.py", line 399, in to\_pandas  
    index=index, assign=parts)  
  File "D:\\ProgramData\\Anaconda3\\lib\\site-packages\\fastparquet\\api.py", line 228, in read\_row\_group  
    scheme=self.file\_scheme)  
  File "D:\\ProgramData\\Anaconda3\\lib\\site-packages\\fastparquet\\core.py", line 355, in read\_row\_group  
    cats, selfmade, assign=assign)  
  File "D:\\ProgramData\\Anaconda3\\lib\\site-packages\\fastparquet\\core.py", line 332, in read\_row\_group\_arrays  
    catdef=out.get(name+'-catdef', None))  
  File "D:\\ProgramData\\Anaconda3\\lib\\site-packages\\fastparquet\\core.py", line 199, in read\_col  
    dic = read\_dictionary\_page(infile, schema\_helper, ph, cmd)  
  File "D:\\ProgramData\\Anaconda3\\lib\\site-packages\\fastparquet\\core.py", line 157, in read\_dictionary\_page  
    raw\_bytes = \_read\_page(file\_obj, page\_header, column\_metadata)  
  File "D:\\ProgramData\\Anaconda3\\lib\\site-packages\\fastparquet\\core.py", line 25, in \_read\_page  
    column\_metadata.codec,  
  File "D:\\ProgramData\\Anaconda3\\lib\\site-packages\\fastparquet\\compression.py", line 128, in decompress\_data  
    (algorithm.upper(), sorted(decompressions)))  
RuntimeError: Decompression 'SNAPPY' not available.  Options: \['GZIP', 'UNCOMPRESSED'\]

## 解决思路 ##

运行时错误:解压“SNAPPY”不可用。选择:(GZIP,“压缩”)

## 解决方法 ##

pip install python-snappy  
pip install pyarrow  
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple python-snappy  
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple pyarrow

哈哈，大功告成！