python file write and read code example

Example 1: python write file

with open("file.txt", "w") as file:
  for line in ["hello", "world"]:
    file.write(line)

Example 2: 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 3: read and write to file python

file = open(“testfile.txt”, “r+”)

Example 4: how to open a text file in python

f = open("demofile2.txt", "a")
f.write("Now the file has more content!")
f.close()

Example 5: Python File Write

f = open("demofile3.txt", "w")
f.write("Woops! I have deleted the content!")
f.close()

#open and read the file after the appending:
f = open("demofile3.txt", "r")
print(f.read())