[英]Python loop benchmark with timeit
I would like to benchmark a specific code segment inside a for loop in Python. 我想在Python的for循环中对特定的代码段进行基准测试。 I am using
timeit
as follows: 我正在使用
timeit
,如下所示:
def createTokens():
keypath=('./pickles/key.pickle')
path="./data/"
directory = os.listdir(path)
tok={}
print('create tokens..')
t=[2**4,2**5,2**6,2**7,2**8,2**9,2**10,2**12,2**14,2**16]
files=['pl_10000004','pl_10000002','pl_100000026']
for filename in files:
for i in t:
code='etok=utils.token(filename,keypath,str(i))'
t = timeit.Timer(stmt=code,setup='from __main__ import utils')
print(filename+'_'+str(i)+'.pickle')
print ('%f'%float(t.timeit(10/10)))
However this raises: 但是,这引起了:
NameError: global name 'filename' is not defined
when I include filename in setup variable Python says: 当我在设置变量中包含文件名时,Python表示:
ImportError: cannot import name filename
How is this is solved? 这怎么解决?
filename
isn't defined in the scope of the code in the timeit
block. filename
未在timeit
块的代码范围内定义。 I don't know what utils
is in your code, but assuming it expects filename
and keypath
as strings just replace your 我不知道是什么
utils
是在你的代码,但假设,预计filename
和keypath
为字符串只需更换您的
code='etok=utils.token(filename,keypath,str(i))'
line with: 符合:
code='etok=utils.token("{}","{}",{})'.format(filename, keypath, i)
Try this: 尝试这个:
code='etok=utils.token("%s","%s","%s")' % (filename, keypath, i)
This will allow you to create a code string that has the values you want. 这将允许您创建具有所需值的代码字符串。 Also, by using the
%s
conversion, i
is coerced into a str
type for you. 另外,通过使用
%s
转换, i
被强制转换为str
类型。
Edit: Added double quotes around values. 编辑:在值周围添加了双引号。
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