timeit: add nsec (nanosecond) unit for format timings
Issue #28240.
diff --git a/Lib/timeit.py b/Lib/timeit.py
index 8bc6a9e..23bdd02 100644
--- a/Lib/timeit.py
+++ b/Lib/timeit.py
@@ -18,7 +18,7 @@
Execution time of this setup statement is NOT timed.
-p/--process: use time.process_time() (default is time.perf_counter())
-v/--verbose: print raw timing results; repeat for more digits precision
- -u/--unit: set the output time unit (usec, msec, or sec)
+ -u/--unit: set the output time unit (nsec, usec, msec, or sec)
-h/--help: print this usage message and exit
--: separate options from statement, use when statement starts with -
statement: statement to be timed (default 'pass')
@@ -272,7 +272,7 @@
repeat = default_repeat
verbose = 0
time_unit = None
- units = {"usec": 1e-6, "msec": 1e-3, "sec": 1.0}
+ units = {"nsec": 1e-9, "usec": 1e-6, "msec": 1e-3, "sec": 1.0}
precision = 3
for o, a in opts:
if o in ("-n", "--number"):
@@ -283,7 +283,7 @@
if a in units:
time_unit = a
else:
- print("Unrecognized unit. Please select usec, msec, or sec.",
+ print("Unrecognized unit. Please select nsec, usec, msec, or sec.",
file=sys.stderr)
return 2
if o in ("-r", "--repeat"):