Backport PR #17882 on branch v3.3.x (Fix FFMpegBase.isAvailable with detached terminals.)#17898

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dstansby merged 1 commit intomatplotlib:v3.3.xfrom

meeseeksmachine:auto-backport-of-pr-17882-on-v3.3.x

Jul 12, 2020

Commits on Jul 12, 2020

Backport PR #17882: Fix FFMpegBase.isAvailable with detached terminals.

dstansby
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meeseeksmachine
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