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Use os.path.isfile() with os.access():

import os
import os.path
PATH = './file.txt'
if os.path.isfile(PATH) and os.access(PATH, os.R_OK):
 print("File exists and is readable")
else:
 print("Either the file is missing or not readable")

Use os.path.isfile() with os.access():

import os
PATH = './file.txt'
if os.path.isfile(PATH) and os.access(PATH, os.R_OK):
 print("File exists and is readable")
else:
 print("Either the file is missing or not readable")

Use os.path.isfile() with os.access():

import os
import os.path
PATH='./file.txt'
if os.path.isfile(PATH) and os.access(PATH, os.R_OK):
 print"File exists and is readable"
else:
 print"Either the file is missing or not readable"

Use os.path.isfile() with os.access():

import os
import os.path
PATH = './file.txt'
if os.path.isfile(PATH) and os.access(PATH, os.R_OK):
 print("File exists and is readable")
else:
 print("Either the file is missing or not readable")

Use os.path.isfile() with os.access():

import os
import os.path
PATH='./file.txt'
if os.path.isfile(PATH) and os.access(PATH, os.R_OK):
 print "File exists and is readable"
else:
 print "Either file is missing or is not readable"

Use os.path.isfile() with os.access():

import os
import os.path
PATH='./file.txt'
if os.path.isfile(PATH) and os.access(PATH, os.R_OK):
 print "File exists and is readable"
else:
 print "Either the file is missing or not readable"