is file open in system ? - other than lsof

[bvidinli]

is there a way to find out if file open in system ? -
please write if you know a way  other than lsof. because lsof if slow for me.
i need a faster way.
i deal with thousands of files... so, i need a faster / python way for this.
thanks.


-- 
İ.Bahattin Vidinli
Elk-Elektronik Müh.
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