Common file operations from the Python os module

20161221_folderOperations.py

import os
myPath = r'W:\FROM_TVC'
# list all objects in the directory
[os.path.join(myPath, x) for x in os.listdir(myPath)][:5]
'''
# Result: ['W:\\FROM_TVC\\.DS_Store',
 'W:\\FROM_TVC\\._.DS_Store',
 'W:\\FROM_TVC\\._9430_Dynamo',
 'W:\\FROM_TVC\\._xxxx_Dig_SkyPlus',
 'W:\\FROM_TVC\\._9451_Duracell'] # 
'''
# get directories
[os.path.join(myPath, x) for x in os.listdir(myPath) if os.path.isdir(os.path.join(myPath,x))==True][:5]
'''
# Result: ['W:\\FROM_TVC\\15125_Sunlight_NaughtyOnes',
 'W:\\FROM_TVC\\9685_Clear',
 'W:\\FROM_TVC\\9764_Clear_Female_Japan',
 'W:\\FROM_TVC\\9794_PAMPERS_FIRST_LEVERAGE_PANTS',
 'W:\\FROM_TVC\\9817_Media Globe'] # 
'''

# get files
[os.path.join(myPath, x) for x in os.listdir(myPath) if os.path.isdir(os.path.join(myPath,x))==False][:5]
'''
# Result: ['W:\\FROM_TVC\\.DS_Store',
 'W:\\FROM_TVC\\._.DS_Store',
 'W:\\FROM_TVC\\._9430_Dynamo',
 'W:\\FROM_TVC\\._xxxx_Dig_SkyPlus',
 'W:\\FROM_TVC\\._9451_Duracell'] # 
'''

# replacing the \\ with /. Most of the time it may not be needed
'W:\\FROM_TVC\\9685_Clear'.replace('\\', '/')
# Result: 'W:/FROM_TVC/9685_Clear' # 

# checks is file or directory exists
os.path.exists('W:\\FROM_TVC\\9685_Clear') # this is a directory on disk
# Result: True #

os.path.exists('W:\\FROM_TVC\\._9430_Dynamo') # this is a file on disk
# Result: True #