[issue35195] Pandas read_csv() is 3.5X Slower on Python 3.7.1 vs Python 3.6.7 & 3.5.2 On Windows 10

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan <tir.karthi at gmail.com> added the comment:

>From the PEP 540

This mode is off by default, but is automatically activated when using the "POSIX" locale.

Add the -X utf8 command line option and PYTHONUTF8 environment variable to control UTF-8 Mode.

https://docs.python.org/3.7/using/cmdline.html#envvar-PYTHONUTF8

I think you can set it to 0 from the docs yo see if it has any effect.

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