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Tornado Import Error: 'No Named Module Singledispatch'

James H. Sterling • • 1 min read
Tornado Import Error: 'No Named Module Singledispatch'

After I installed tornado, upon testing an instance, it shows the error no module named singledispatch.

But when I import tornado it's ok.

Need help.

1

1 Answer

Somehow you installed Tornado without its required dependencies. Install them with:

python -m pip install singledispatch backports_abc

Here's the list of new dependencies in Tornado 4.3.

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James H. Sterling
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James H. Sterling

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.