How to save a dictionary to a file?

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I have problem with changing a dict value and saving the dict to a text file (the format must be same), I only want to change the member_phone field.

My text file is the following format:

memberID:member_name:member_email:member_phone

and I split the text file with:

mdict={}
for line in file:
    x=line.split(':')
    a=x[0]
    b=x[1]
    c=x[2]
    d=x[3]
    e=b+':'+c+':'+d

    mdict[a]=e

When I try change the member_phone stored in d, the value has changed not flow by the key, 

def change(mdict,b,c,d,e):
    a=input('ID')
    if a in mdict:
        d= str(input('phone'))
        mdict[a]=b+':'+c+':'+d
    else:
        print('not')

and how to save the dict to a text file with same format?

12 Answers
12

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