python program to read files from code example

Example 1: python read file

with open("file.txt", "r") as txt_file:
  return txt_file.readlines()

Example 2: read file python

document = 'document.txt'
file = open(document, 'r')
# 'r' can be replaced with:
# 'w' to write
# 'a' to append (add to the end)
# 'w+' makes a new file if one does not already exist of that name
# 'a+' is the same as 'w+' but it appends if the file does exist

##go to beginning of document
file.seek(0)

##print all lines in document, except empty lines:
for i in file:
    k = i.strip() 
    print k

##close the file after you are done
file.close()


##this can temporarily open a file:
with open(document) as ur:
    for i in ur:
        k = i.strip() 
        print k

Example 3: how to read files in python

#Read files with loop
#Replace (File path) with your text file's path
file = open("(File path)", "r")

text = ""

for line in file:
  text = "%s\n%s"%(text, line)
  
print(text)

Example 4: how to read a file in python

# when you want to read the file from terminal in python use 
import sys
f = open(sys.argv[1])
line=f.readline()