Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Need Help working out a word frequencies (lists). I am new to Python and Im having some trouble understanding how to write this program.
![7.8 LAB: Word frequencies (lists)
Write a program that first reads in the name of an input file and then reads the file using the cs.reader() method. The file contains a list of
words separated by commas. Your program should output the words and their frequencies (the number of times each word appears in the
file) without any duplicates.
Ex: If the input is:
inputl.csv
and the contents of input1.csv are:
hello, cat,man, hey,dog, boy, Hello, man, cat,woman, dog, Cat,hey,boy
the output is:
hello 1
cat 2
man 2
hey 2
dog 2
boy 2
Hello 1
woman 1
Cat 1
Note: There is a newline at the end of the output, and input1.csv is available to download.
247772.2000766.qx3zqy7
LAB
АCTIVITY
7.8.1: LAB: Word frequencies (lists)
1/10
Downloadable files
inputl.csv
Download
main.py
Load default template...
1 fileName = "input1.csv"
2 wordFrequency
{}
3
4 with open(fileName, 'r') as csvfile:
csvreader = csv.reader(csvfile)
for row in csvreader:
5
6
for word in wordFrequency:
if word in wordFrequency.keys ():
wordFrequency[word] = wordFrequency.keys () + 1
else:
8
9
10
11
wordFrequency[word] = 1
for key in wordFrequency.keys ():
print(key +
print()
12
+ str(wordFrequency[key]))
13
14
15
Run your program as often as you'd like, before submitting for grading. Below, type any needed
input values in the first box, then click Run program and observe the program's output in the
Develop mode
Submit mode
second box.
Enter program input (optional)
hello, cat, man, hey, dog, boy, Hello, man, cat, woman, dog, Cat, hey, boy](https://content.bartleby.com/qna-images/question/cbd63a55-c040-44a4-adfa-eb1b6be74a75/7cb3b981-f425-4e6c-becf-b5b5344a1e4c/zugg2lj_processed.png)
Transcribed Image Text:7.8 LAB: Word frequencies (lists)
Write a program that first reads in the name of an input file and then reads the file using the cs.reader() method. The file contains a list of
words separated by commas. Your program should output the words and their frequencies (the number of times each word appears in the
file) without any duplicates.
Ex: If the input is:
inputl.csv
and the contents of input1.csv are:
hello, cat,man, hey,dog, boy, Hello, man, cat,woman, dog, Cat,hey,boy
the output is:
hello 1
cat 2
man 2
hey 2
dog 2
boy 2
Hello 1
woman 1
Cat 1
Note: There is a newline at the end of the output, and input1.csv is available to download.
247772.2000766.qx3zqy7
LAB
АCTIVITY
7.8.1: LAB: Word frequencies (lists)
1/10
Downloadable files
inputl.csv
Download
main.py
Load default template...
1 fileName = "input1.csv"
2 wordFrequency
{}
3
4 with open(fileName, 'r') as csvfile:
csvreader = csv.reader(csvfile)
for row in csvreader:
5
6
for word in wordFrequency:
if word in wordFrequency.keys ():
wordFrequency[word] = wordFrequency.keys () + 1
else:
8
9
10
11
wordFrequency[word] = 1
for key in wordFrequency.keys ():
print(key +
print()
12
+ str(wordFrequency[key]))
13
14
15
Run your program as often as you'd like, before submitting for grading. Below, type any needed
input values in the first box, then click Run program and observe the program's output in the
Develop mode
Submit mode
second box.
Enter program input (optional)
hello, cat, man, hey, dog, boy, Hello, man, cat, woman, dog, Cat, hey, boy
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