在这种情况下，最佳代码实践是什么？

Question

I am browsing directory where i saved logs , i am using tmpdir pytest fixture : so which one of the two examples is better written : example 1 :

for root, dirname, files in os.walk(str(tmpdir + '/log/')):
    ....

example 2 :

directory = str(os.path.join(tmpdir, 'log'))
for root, dirname, files in os.walk(directory):
    ....

Which syntax i should use and why ?

Answer 1

In short, if you will need to access that directory variable again then its best to have it as a variable.

If not, having the variable it might be considered more "readable" but it is slightly redundant to have it without a second use.