[英]How to get Python to look at Sub-Folders?
我正在尝试创建一个Python脚本,该脚本将在一系列子文件夹中查找并删除空的shapefile。 我已经成功创建了脚本部分,该部分将删除一个文件夹中的空文件,但是“项目”文件夹中总共有70个文件夹。 虽然我可以将代码复制和粘贴69次,但我确信这一定是一种方法,可以查看每个子文件夹并为每个子文件夹运行代码。 以下是我到目前为止所拥有的。 有任何想法吗? 我对此很陌生,我只是编辑了一个现有代码就可以做到这一点。 谢谢!
import os
# Set the working directory
os.chdir ("C:/Naview/Platypus/Project")
# Get the list of only files in the current directory
file = filter(os.path.isfile, os.listdir('C:/Naview/Platypus/Project'))
# For each file in directory
for shp in file:
# Get only the files that end in ".shp"
if shp.endswith(".shp"):
# Get the size of the ".shp" file.
# NOTE: The ".dbf" file can vary is size whereas
# the shp & shx are always the same when "empty".
size = os.path.getsize(shp)
print "\nChecking " + shp + "'s file size..."
#If the file size is greater than 100 bytes, leave it alone.
if size > 100:
print "File is " + str(size) + " bytes"
print shp + " will NOT be deleted \n"
#If the file size is equal to 100 bytes, delete it.
if size == 100:
# Convert the int output from (size) to a string.
print "File is " + str(size) + " bytes"
# Get the filename without the extention
base = shp[:-4]
# Remove entire shapefile
print "Removing " + base + ".* \n"
if os.path.exists(base + ".shp"):
os.remove(base + ".shp")
if os.path.exists(base + ".shx"):
os.remove(base + ".shx")
if os.path.exists(base + ".dbf"):
os.remove(base + ".dbf")
if os.path.exists(base + ".prj"):
os.remove(base + ".prj")
if os.path.exists(base + ".sbn"):
os.remove(base + ".sbn")
if os.path.exists(base + ".sbx"):
os.remove(base + ".sbx")
if os.path.exists(base + ".shp.xml"):
os.remove(base + ".shp.xml")
有几种方法可以做到这一点。 我是glob
的粉丝
for shp in glob.glob('C:/Naview/Platypus/Project/**/*.shp'):
size = os.path.getsize(shp)
print "\nChecking " + shp + "'s file size..."
#If the file size is greater than 100 bytes, leave it alone.
if size > 100:
print "File is " + str(size) + " bytes"
print shp + " will NOT be deleted \n"
continue
print "Removing", shp, "files"
for file in glob.glob(shp[:-3] + '*'):
print " removing", file
os.remove(file)
是时候学习过程编程了: 定义函数 。
将您的代码放入带有path参数的函数中,并为70条路径中的每条路径调用它:
def delete_empty_shapefiles(path):
# Get the list of only files in the current directory
file = filter(os.path.isfile, os.listdir(path))
...
paths = ['C:/Naview/Platypus/Project', ...]
for path in paths:
delete_empty_shapefiles(path)
奖励点,用于创建执行os.path.exists()
和os.remove()
调用的函数。
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