data confusion data confusion -4 years ago 207
Python Question

Google Dataflow python quickstart error - GcsIO has no attribute

I have been following the Dataflow Python Quickstart and get an error when running the wordcount example pipeline:


...
File "apache_beam/io/fileio.py", line 281, in glob
return gcsio.GcsIO().glob(path, limit)
AttributeError: 'NoneType' object has no attribute 'GcsIO'


I have tried with my own pipeline with the same result. I am not sure what the problem is here as i thought i had followed the tutorial exactly and this error seems to be related to the read/write transform


Traceback (most recent call last): File
"/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/runpy.py",
line 162, in _run_module_as_main
"main", fname, loader, pkg_name) File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/runpy.py",
line 72, in _run_code
exec code in run_globals File "/Users/Alex/beam/sdks/python/apache_beam/examples/wordcount.py", line
116, in
run() File "/Users/Alex/beam/sdks/python/apache_beam/examples/wordcount.py", line
87, in run
lines = p | 'read' >> ReadFromText(known_args.input) File "apache_beam/io/textio.py", line 378, in init
skip_header_lines=skip_header_lines) File "apache_beam/io/textio.py", line 87, in init
validate=validate) File "apache_beam/io/filebasedsource.py", line 97, in init
self._validate() File "apache_beam/io/filebasedsource.py", line 171, in _validate
if len(fileio.ChannelFactory.glob(self._pattern, limit=1)) <= 0: File "apache_beam/io/fileio.py", line 281, in glob
return gcsio.GcsIO().glob(path, limit) AttributeError: 'NoneType' object has no attribute 'GcsIO'


Any idea what i am doing wrong?

Thanks

Answer Source

Just installing google-apitools did not solve the problem for me. I had to directly install the SDK from source, including its gcp dependencies, defined in the requires.txt found in the SDKs egg-info:

# run this in your virtualenv
SDK_PATH=sdks/python
pip install -e $SDK_PATH[gcp]

Logged in via gcloud auth application-default login, I could then successfully run the wordcount example.

Edit: Answer rewritten, since previous solution was not working as expected.

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