Question

Python programming!

Can you redo this program with comment and with clear ident.

Part II - Read student names

Ask the user for a file containing possible first names (for this exercise use firstnames.txt attached to the assignment or download it from here: https://drive.google.com/file/d/1U-eOg8znWEoOcIPOWTT8due-svjNdnPc/view?usp=sharing).

Read the file for all the names. Remember the names are not case sensitive and some may appear a few times.

Calculate and output:

• How many unique names are in the file? Number only
• Which names appeared more than once? Output the names and how many were omitted.
• What is the longest and shortest names (in terms of number of letters)? Display the names and lengths (all the possibilities)
• For each student, assign a first name. What is the most and least common names? How many of each?

Answer 1

Thanks for the question. Below is the code you will be needing. Let me know if you have any doubts or if you need anything to change. 

If you are satisfied with the solution, please rate the answer. Let me know for any help with any other questions.

Thank You !
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def main():
    filename ='F:\\firstnames.txt' # update the file name path here
    name_dict={}
    with open(filename,'r') as infile:
        for line in infile:
            line = line.strip()
            if line in name_dict.keys():
                name_dict[line]+=1
            else:
                name_dict[line]=1

    # uniques names
    counter=0
    for name in name_dict.keys():
        counter+= 1 if name_dict.get(name)==1 else 0
    print('Unique Name Count: {:,}'.format(counter))
    # more than once name:
    print('Names that occured more than once')
    total_names=0
    count_names=0
    for name,count in name_dict.items():
        if count>1:
            print(name)
            count_names+=1
        total_names+=count
    print('There were {:,} names which occured more than once'.format(count_names))
    print('Names omitted count {:,}'.format(total_names-count_names))

    longest=''
    shortest=' '*100
    for name in name_dict.keys():
        if len(name)>len(longest):longest=name
        if len(name)<len(shortest):shortest=name
    print('Longest Name: {} contains {} letters'.format(longest,len(longest)))
    print('Shortest Name: {} contains {} letter(s)'.format(shortest,len(shortest)))
    sorted_names = sorted(name_dict.items(),key=lambda pair:pair[1])
    print('Least Common Name\n====================')
    for name,freq in sorted_names:
        if freq==1: print(name)
    largest_freq = sorted_names[-1][1]
    print('Most Common Name\n====================')
    for name, freq in sorted_names:
        if freq == largest_freq: print(name)

main()

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