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c_encoding has always been NULL since #36997. This allows removing/simplifying a lot of code in pandas/_libs/parsers.pyx.

@jreback jreback added Clean IO CSV read_csv, to_csv Unicode Unicode strings labels Mar 10, 2021
@jreback jreback added this to the 1.3 milestone Mar 10, 2021
@jreback jreback merged commit c17b84a into pandas-dev:master Mar 10, 2021
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jreback commented Mar 10, 2021

nice @twoertwein

any perf gains from this?

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any perf gains from this?

I didn't check, but I wouldn't expect a significant change as it mostly removes dead code. I can run the benchmarks later today.

jbrockmendel pushed a commit to jbrockmendel/pandas that referenced this pull request Mar 11, 2021
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