Reputation: 93
I am using this code to count the same words in a text file.
filename = input("Enter name of input file: ")
file = open(filename, "r", encoding="utf8")
wordCounter = {}
with open(filename,'r',encoding="utf8") as fh:
for line in fh:
# Replacing punctuation characters. Making the string to lower.
# The split will spit the line into a list.
word_list = line.replace(',','').replace('\'','').replace('.','').replace("'",'').replace('"','').replace('"','').replace('#','').replace('!','').replace('^','').replace('$','').replace('+','').replace('%','').replace('&','').replace('/','').replace('{','').replace('}','').replace('[','').replace(']','').replace('(','').replace(')','').replace('=','').replace('*','').replace('?','').lower().split()
for word in word_list:
# Adding the word into the wordCounter dictionary.
if word not in wordCounter:
wordCounter[word] = 1
else:
# if the word is already in the dictionary update its count.
wordCounter[word] = wordCounter[word] + 1
print('{:15}{:3}'.format('Word','Count'))
print('-' * 18)
# printing the words and its occurrence.
for word,occurance in wordCounter.items():
print(word,occurance)
I need them to be in order in bigger number to smaller number as output. For example:
word 1: 25
word 2: 12
word 3: 5 . . .
I also need to get the input as just ".txt" file. If the user writes anything different the program must get an error as "Write a valid file name".
How can i sort output and make the error code at the same time ?
Upvotes: 2
Views: 182
Reputation: 111
You can try:
if ( filename[-4:0] != '.txt'):
print('Please input a valid file name')
And repeat input command...
Upvotes: 0
Reputation: 5000
For printing in order, you can sort them prior to printing by the occurrence like this:
for word,occurance in sorted(wordCounter.items(), key=lambda x: x[1], reverse=True):
print(word,occurance)
In order to check whether the file is valid in the way that you want, you can consider using:
import os
path1 = "path/to/file1.txt"
path2 = "path/to/file2.png"
if not path1.lower().endswith('.txt'):
print("Write a valid file name")
if not os.path.exists(path1):
print("File does not exists!")
Upvotes: 2