From 6b6f4b25113ec28954bb0f7a8a9ea5d88d40b66c Mon Sep 17 00:00:00 2001 From: David Li Date: Wed, 25 Nov 2020 17:54:24 -0500 Subject: [PATCH] PERF: fix regression in tz_convert_from_utc --- pandas/_libs/tslibs/tzconversion.pyx | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/pandas/_libs/tslibs/tzconversion.pyx b/pandas/_libs/tslibs/tzconversion.pyx index f08a86b1262e6..1049682af08e8 100644 --- a/pandas/_libs/tslibs/tzconversion.pyx +++ b/pandas/_libs/tslibs/tzconversion.pyx @@ -426,7 +426,7 @@ def tz_convert_from_utc(const int64_t[:] vals, tzinfo tz): int64 ndarray of converted """ cdef: - int64_t[:] converted + const int64_t[:] converted if len(vals) == 0: return np.array([], dtype=np.int64) @@ -437,7 +437,7 @@ def tz_convert_from_utc(const int64_t[:] vals, tzinfo tz): @cython.boundscheck(False) @cython.wraparound(False) -cdef int64_t[:] _tz_convert_from_utc(const int64_t[:] vals, tzinfo tz): +cdef const int64_t[:] _tz_convert_from_utc(const int64_t[:] vals, tzinfo tz): """ Convert the given values (in i8) either to UTC or from UTC. @@ -459,7 +459,7 @@ cdef int64_t[:] _tz_convert_from_utc(const int64_t[:] vals, tzinfo tz): str typ if is_utc(tz): - converted = vals.copy() + return vals elif is_tzlocal(tz): converted = np.empty(n, dtype=np.int64) for i in range(n):