reading input from a file in python code example

Example 1: python open and reacd file

with open('yourfile.txt','r') as f:
    lines = f.readlines()
    f.close()

Example 2: file input python

# import fileinput 
import fileinput 
  
# Using fileinput.input() method 
for line in fileinput.input(files ='gfg.txt'): 
    print(line)

Example 3: how to write a python variable to a file

#use pickle

import pickle
dict = {'one': 1, 'two': 2}
file = open('dump.txt', 'w')
pickle.dump(dict, file)
file.close()

#and to read it again
file = open('dump.txt', 'r')
dict = pickle.load(file)

Example 4: read file from form input type filepython

>>> secure_filename('../../../../home/username/.bashrc')
'home_username_.bashrc'