glob 模块:文件模式匹配
In [1]:
import glob
glob
模块提供了方便的文件模式匹配方法。
例如,找到所有以 .ipynb
结尾的文件名:
In [2]:
glob.glob("*.ipynb")
Out[2]:
['11.03 json.ipynb',
'11.01 pprint.ipynb',
'11.02 pickle and cpickle.ipynb',
'11.04 glob.ipynb']
glob
函数支持三种格式的语法:
*
匹配单个或多个字符?
匹配任意单个字符[]
匹配指定范围内的字符,如:[0-9]匹配数字。
假设我们要匹配第 09 节所有的 .ipynb
文件:
In [3]:
glob.glob("../09*/*.ipynb")
Out[3]:
['../09\. theano/09.05 configuration settings and compiling modes.ipynb',
'../09\. theano/09.03 gpu on windows.ipynb',
'../09\. theano/09.07 loop with scan.ipynb',
'../09\. theano/09.13 modern net on mnist.ipynb',
'../09\. theano/09.11 net on mnist.ipynb',
'../09\. theano/09.09 logistic regression .ipynb',
'../09\. theano/09.10 softmax on mnist.ipynb',
'../09\. theano/09.01 introduction and installation.ipynb',
'../09\. theano/09.02 theano basics.ipynb',
'../09\. theano/09.12 random streams.ipynb',
'../09\. theano/09.04 graph structures.ipynb',
'../09\. theano/09.14 convolutional net on mnist.ipynb',
'../09\. theano/09.08 linear regression.ipynb',
'../09\. theano/09.15 tensor module.ipynb',
'../09\. theano/09.06 conditions in theano.ipynb']
匹配数字开头的文件夹名:
In [4]:
glob.glob("../[0-9]*")
Out[4]:
['../04\. scipy',
'../02\. python essentials',
'../07\. interfacing with other languages',
'../11\. useful tools',
'../05\. advanced python',
'../10\. something interesting',
'../03\. numpy',
'../06\. matplotlib',
'../08\. object-oriented programming',
'../01\. python tools',
'../09\. theano']