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fix: add method to close httplib2 connections #1038

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merged 3 commits into from Sep 23, 2020

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busunkim96
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Fixes #618 馃

httplib2 leaves sockets open by default. This can lead to situations where programs run out of available sockets. httplib2 added a method last year to clean up connections. https://github.com/httplib2/httplib2/blob/9bf300cdc372938f4237150d5b9b615879eb51a1/python3/httplib2/__init__.py#L1498-L1506

This PR adds two ways to close http connections. The interface is intentionally similar to the proposed design for GAPIC clients. googleapis/gapic-generator-python#575

explicitly call close:

from googleapiclient import discovery

service = discovery.build("drive", "v3")
service.drives().list()
service.close()

context manager:

from googleapiclient import discovery

with discovery.build("drive", "v3") as service:
    service.drives().list()

# service.__exit__() is called which calls service.close()

@google-cla google-cla bot added the cla: yes This human has signed the Contributor License Agreement. label Sep 22, 2020
@busunkim96 busunkim96 added the automerge Merge the pull request once unit tests and other checks pass. label Sep 22, 2020
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Your PR has attempted to merge for 3 hours. Please check that all required checks have passed, you have an automerge label, and that all your reviewers have approved the PR

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Merge-on-green attempted to merge your PR for 6 hours, but it was not mergeable because either one of your required status checks failed, or one of your required reviews was not approved. Learn more about your required status checks here: https://help.github.com/en/github/administering-a-repository/enabling-required-status-checks. You can remove and reapply the label to re-run the bot.

@gcf-merge-on-green gcf-merge-on-green bot removed the automerge Merge the pull request once unit tests and other checks pass. label Sep 23, 2020
@tswast tswast requested a review from a team as a code owner September 23, 2020 14:51
@busunkim96 busunkim96 merged commit 98888da into googleapis:master Sep 23, 2020
@busunkim96 busunkim96 deleted the context-manager-for-httplib2 branch September 23, 2020 17:10
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discovery.build( ) raises ResourceWarning: unclosed <ssl.SSLSocket fd=13,
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