how to read text file python code example

Example 1: get text from txt file python

with open ("data.txt", "r") as myfile:
    data = myfile.read().splitlines()

Example 2: python read file line by line

with open("file.txt") as file_in:
    lines = []
    for line in file_in:
        lines.append(line)

Example 3: python read file

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

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 output to text file

$ python my_program.py > output.txt

Example 6: python create unreadable save file

import hmac, pickle

# pickle the data
pickled = pickle.dumps(data)
digest =  hmac.new("some-shared-key", pickled, 
                   digestmod=<my choice of hasher>
                   ).hexdigest()

# now save the hashed digest and the pickled data
with open("some-file", "wb") as f:
    # save these in some way you can distinguish them when you read them
    print(digest, file=f)
    print(pickled, file=f)