在python中导入fastparquet时出现snappy错误 [英] error with snappy while importing fastparquet in python

问题描述

我已在EC2服务器中安装了以下模块，该服务器已经具有python(3.6)&安装了anaconda:

I have installed installed the following modules in my EC2 server which already has python (3.6) & anaconda installed :

• 贪婪
• 金字塔
• s3fs
• fastparquet

除了fastparquet以外，其他所有东西都可以导入.当我尝试导入fastparquet时，它将引发以下错误:

except fastparquet everything else works on importing. When I try to import fastparquet it throws the following error :

[username@ip8 ~]$ conda -V
conda 4.2.13
[username@ip-~]$ python
    Python 3.6.0 |Anaconda custom (64-bit)| (default, Dec 23 2016, 12:22:00)
    [GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux
    Type "help", "copyright", "credits" or "license" for more information.
     import fastparquet
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
      File "/home/username/anaconda3/lib/python3.6/site-packages/fastparquet/__init__.py", line 15, in <module>
        from .core import read_thrift
      File "/home/username/anaconda3/lib/python3.6/site-packages/fastparquet/core.py", line 11, in <module>
        from .compression import decompress_data
      File "/home/username/anaconda3/lib/python3.6/site-packages/fastparquet/compression.py", line 43, in <module>
        compressions['SNAPPY'] = snappy.compress
    AttributeError: module 'snappy' has no attribute 'compress'

我该如何解决这个问题?

How do I go about fixing this ?

推荐答案

不幸的是，在python-land中有很多东西叫做"snappy".我相信您输入的可能是错误的，在这种情况下，以下conda命令之一应该可以为您解决此问题:

Unfortunately, there are multiple things in python-land called "snappy". I believe you may have the wrong one, in which case one of the following conda commands should solve this for you:

conda install python-snappy

或

conda install python-snappy -c conda-forge

后者稍晚一些(发布了GIL，该GIL在线程应用程序中可能很重要).

where the latter is slightly more recent (releases the GIL which can be important in threaded applications).

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