在 datalab 中导入 gcsfs 出现错误 [英] Importing gcsfs in datalab is giving an error

问题描述

当我在 datalab 中导入 gcsfs 时，

导入 gcsfs

我有这个与 fsspec 包相关的无效语法错误.是不是跟版本有关

<预><代码>文件/usr/local/envs/py3env/lib/python3.5/site-packages/IPython/core/interactiveshell.py"，第 2961 行，在 run_code 中exec(code_obj，self.user_global_ns，self.user_ns)文件<ipython-input-3-3f25f74e3f1b>"，第 1 行，在 <module>导入 gcsfs文件/usr/local/envs/py3env/lib/python3.5/site-packages/gcsfs/__init__.py"，第5行，在<module>从 .core 导入 GCSFileSystem文件/usr/local/envs/py3env/lib/python3.5/site-packages/gcsfs/core.py"，第7行，在<module>导入 fsspec文件/usr/local/envs/py3env/lib/python3.5/site-packages/fsspec/__init__.py"，第 10 行，在 中从 .mapping 导入 FSMap, get_mapper文件/usr/local/envs/py3env/lib/python3.5/site-packages/fsspec/mapping.py"，第2行，在<module>从 .core 导入 url_to_fs文件/usr/local/envs/py3env/lib/python3.5/site-packages/fsspec/core.py"，第314行out[0] = (f"{out[0][1]}://", out[0][1], out[0][2])^语法错误:无效语法

解决方案

为了扩展 Claros 的答案，潜在的问题是 gcsfs 继承的 fsspec 包.fsspec 最近的 0.8.0 版本实现了 f-strings，这会导致错误.要修复它，只需安装仍支持 Python 3.5 的最新 fsspec 版本，即

!pip install fsspec==0.6.2

https://pypi.org/project/fsspec/0.6.2/

您可能还需要降级 gcsfs.我得到它的工作

!pip install --upgrade gcsfs==0.5.3

When I import gcsfs in datalab,

import gcsfs

I've this invalid syntax error which is related to the package fsspec. Is it something to do with versions

  File "/usr/local/envs/py3env/lib/python3.5/site-packages/IPython/core/interactiveshell.py", line 2961, in run_code
    exec(code_obj, self.user_global_ns, self.user_ns)

  File "<ipython-input-3-3f25f74e3f1b>", line 1, in <module>
    import gcsfs

  File "/usr/local/envs/py3env/lib/python3.5/site-packages/gcsfs/__init__.py", line 5, in <module>
    from .core import GCSFileSystem

  File "/usr/local/envs/py3env/lib/python3.5/site-packages/gcsfs/core.py", line 7, in <module>
    import fsspec

  File "/usr/local/envs/py3env/lib/python3.5/site-packages/fsspec/__init__.py", line 10, in <module>
    from .mapping import FSMap, get_mapper

  File "/usr/local/envs/py3env/lib/python3.5/site-packages/fsspec/mapping.py", line 2, in <module>
    from .core import url_to_fs

  File "/usr/local/envs/py3env/lib/python3.5/site-packages/fsspec/core.py", line 314
    out[0] = (f"{out[0][1]}://", out[0][1], out[0][2])
                              ^
SyntaxError: invalid syntax

解决方案

To expand on Claros answer, the underlying problem is the fsspec package, which gcsfs inherits from. fsspec's recent 0.8.0 version implemented f-strings, which is causing the error. To fix it, simply install the latest fsspec version that still supports Python 3.5, i.e.

!pip install fsspec==0.6.2

https://pypi.org/project/fsspec/0.6.2/

You may also have to downgrade gcsfs. I got it to work with

!pip install  --upgrade gcsfs==0.5.3

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