1 files changed, 0 insertions, 172 deletions
diff --git a/Lib/importlib/test/benchmark.py b/Lib/importlib/test/benchmark.py
deleted file mode 100644
index b5de6c6b01..0000000000
--- a/Lib/importlib/test/benchmark.py
+++ /dev/null
@@ -1,172 +0,0 @@
-"""Benchmark some basic import use-cases.
-
-The assumption is made that this benchmark is run in a fresh interpreter and
-thus has no external changes made to import-related attributes in sys.
-
-"""
-from . import util
-from .source import util as source_util
-import decimal
-import imp
-import importlib
-import os
-import py_compile
-import sys
-import timeit
-
-
-def bench(name, cleanup=lambda: None, *, seconds=1, repeat=3):
-    """Bench the given statement as many times as necessary until total
-    executions take one second."""
-    stmt = "__import__({!r})".format(name)
-    timer = timeit.Timer(stmt)
-    for x in range(repeat):
-        total_time = 0
-        count = 0
-        while total_time < seconds:
-            try:
-                total_time += timer.timeit(1)
-            finally:
-                cleanup()
-            count += 1
-        else:
-            # One execution too far
-            if total_time > seconds:
-                count -= 1
-        yield count // seconds
-
-def from_cache(seconds, repeat):
-    """sys.modules"""
-    name = '<benchmark import>'
-    module = imp.new_module(name)
-    module.__file__ = '<test>'
-    module.__package__ = ''
-    with util.uncache(name):
-        sys.modules[name] = module
-        for result in bench(name, repeat=repeat, seconds=seconds):
-            yield result
-
-
-def builtin_mod(seconds, repeat):
-    """Built-in module"""
-    name = 'errno'
-    if name in sys.modules:
-        del sys.modules[name]
-    # Relying on built-in importer being implicit.
-    for result in bench(name, lambda: sys.modules.pop(name), repeat=repeat,
-                        seconds=seconds):
-        yield result
-
-
-def source_wo_bytecode(seconds, repeat):
-    """Source w/o bytecode: simple"""
-    sys.dont_write_bytecode = True
-    try:
-        name = '__importlib_test_benchmark__'
-        # Clears out sys.modules and puts an entry at the front of sys.path.
-        with source_util.create_modules(name) as mapping:
-            assert not os.path.exists(imp.cache_from_source(mapping[name]))
-            for result in bench(name, lambda: sys.modules.pop(name), repeat=repeat,
-                                seconds=seconds):
-                yield result
-    finally:
-        sys.dont_write_bytecode = False
-
-
-def decimal_wo_bytecode(seconds, repeat):
-    """Source w/o bytecode: decimal"""
-    name = 'decimal'
-    decimal_bytecode = imp.cache_from_source(decimal.__file__)
-    if os.path.exists(decimal_bytecode):
-        os.unlink(decimal_bytecode)
-    sys.dont_write_bytecode = True
-    try:
-        for result in bench(name, lambda: sys.modules.pop(name), repeat=repeat,
-                            seconds=seconds):
-            yield result
-    finally:
-        sys.dont_write_bytecode = False
-
-
-def source_writing_bytecode(seconds, repeat):
-    """Source writing bytecode: simple"""
-    assert not sys.dont_write_bytecode
-    name = '__importlib_test_benchmark__'
-    with source_util.create_modules(name) as mapping:
-        def cleanup():
-            sys.modules.pop(name)
-            os.unlink(imp.cache_from_source(mapping[name]))
-        for result in bench(name, cleanup, repeat=repeat, seconds=seconds):
-            assert not os.path.exists(imp.cache_from_source(mapping[name]))
-            yield result
-
-
-def decimal_writing_bytecode(seconds, repeat):
-    """Source writing bytecode: decimal"""
-    assert not sys.dont_write_bytecode
-    name = 'decimal'
-    def cleanup():
-        sys.modules.pop(name)
-        os.unlink(imp.cache_from_source(decimal.__file__))
-    for result in bench(name, cleanup, repeat=repeat, seconds=seconds):
-        yield result
-
-
-def source_using_bytecode(seconds, repeat):
-    """Bytecode w/ source: simple"""
-    name = '__importlib_test_benchmark__'
-    with source_util.create_modules(name) as mapping:
-        py_compile.compile(mapping[name])
-        assert os.path.exists(imp.cache_from_source(mapping[name]))
-        for result in bench(name, lambda: sys.modules.pop(name), repeat=repeat,
-                            seconds=seconds):
-            yield result
-
-
-def decimal_using_bytecode(seconds, repeat):
-    """Bytecode w/ source: decimal"""
-    name = 'decimal'
-    py_compile.compile(decimal.__file__)
-    for result in bench(name, lambda: sys.modules.pop(name), repeat=repeat,
-                        seconds=seconds):
-        yield result
-
-
-def main(import_):
-    __builtins__.__import__ = import_
-    benchmarks = (from_cache, builtin_mod,
-                  source_using_bytecode, source_wo_bytecode,
-                  source_writing_bytecode,
-                  decimal_using_bytecode, decimal_writing_bytecode,
-                  decimal_wo_bytecode,)
-    seconds = 1
-    seconds_plural = 's' if seconds > 1 else ''
-    repeat = 3
-    header = "Measuring imports/second over {} second{}, best out of {}\n"
-    print(header.format(seconds, seconds_plural, repeat))
-    for benchmark in benchmarks:
-        print(benchmark.__doc__, "[", end=' ')
-        sys.stdout.flush()
-        results = []
-        for result in benchmark(seconds=seconds, repeat=repeat):
-            results.append(result)
-            print(result, end=' ')
-            sys.stdout.flush()
-        assert not sys.dont_write_bytecode
-        print("]", "best is", format(max(results), ',d'))
-
-
-if __name__ == '__main__':
-    import optparse
-
-    parser = optparse.OptionParser()
-    parser.add_option('-b', '--builtin', dest='builtin', action='store_true',
-                        default=False, help="use the built-in __import__")
-    options, args = parser.parse_args()
-    if args:
-        raise RuntimeError("unrecognized args: {}".format(args))
-    import_ = __import__
-    if not options.builtin:
-        import_ = importlib.__import__
-
-    main(import_)