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find() official link

for doc in db.tasks.find(filter={'state':'successful'},projection=['analysis.bandgap'])‌​: 
    print doc

I tried to set projection as a list or dict, but neither will work for limit the output of find(). How to set projection properly?

styvane
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keliu
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  • How did you do it? show us your code. – styvane Apr 30 '16 at 06:39
  • @user3100115 Thank you. A shorten code is as followed: `for doc in db.tasks.find(filter={'state':'successful'},projection=['analysis.bandgap'])‌​: print doc` – keliu May 01 '16 at 06:53
  • please add sample documents with the expected result using the [edit](https://stackoverflow.com/posts/36943425/edit) link – styvane May 01 '16 at 06:56

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