Writing a dictionary to a text file?

Question

I have a dictionary and am trying to write it to a file.

exDict = {1:1, 2:2, 3:3}
with open(\'file.txt\', \'r\') as file:
    file.write(exDict)

Answer 1

For list comprehension lovers, this will write all the key : value pairs in new lines in dog.txt

my_dict = {'foo': [1,2], 'bar':[3,4]}

# create list of strings
list_of_strings = [ f'{key} : {my_dict[key]}' for key in my_dict ]

# write string one by one adding newline
with open('dog.txt', 'w') as my_file:
    [ my_file.write(f'{st}\n') for st in list_of_strings ]