Terry J. Reedy <[email protected]> added the comment:
from idlelib.pyparse import Parser
import timeit
code='def f():\n'
print(timeit.timeit("statement", # for example
"p=Parser(4,4)", globals = globals()))
statement microseconds
Parser .1 # test timeit code
Parser() 2.2
p.set_code('') 1.4
p.set_code(code) 1.8
'('.translate(map1) 1.5 or 2.2 depending on ParseMap
Translate time is longer for real code and Parser() instance creation time must
be well less than 1/10, maybe 1/100 of any answer time. If we don't reuse
instances, though, set_code should be part of __init__ (and tests changed).
Either change is low priority.
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<https://bugs.python.org/issue32880>
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