PYTHON HOMEWORK! Please help (Count the occurrences of each keyword) Write a pyt

Question

PYTHON HOMEWORK!

Please help

(Count the occurrences of each keyword) Write a python program that reads in a Python source code file and counts the occurrence of each keyword in the file. The program should prompt the user to enter the Python source code filename.

I have the sample code. However, the sample code only count the number of keywords, without breaking the occurence of each keyword.

import os path import sys def main O keywords and ''as'', assert "break" class Continue "def", "del ''elif", else except "False "finally "for "from global "if", import "in", "is", am "None", nonlocal not "or", pass "raise" return "True try while with" yield'' filename input "Enter a Python source code filename: strip if not oss path isfile (filename) Check if file exists print "File filename "does not exist") sys exito infile open filename, "r") open files for input text infile. read (C) split() Read and split words from the file Count 0 for word in text: if word in keywords: count print "The number of keywords in filename "is", count) main()

Explanation / Answer

import os
from counter import Counter

keywords = """
and       del       from      not       while
as        elif      global    or        with
assert    else      if        pass      yield
break     except    import    print
class     exec      in        raise
continue finally   is        return
def       for       lambda    try
"""

if __name__ == "__main__":
    filename = input('Enter filename: ')
    keywords = keywords.split()
    if os.path.isfile(filename):
        with open(filename, 'r') as f:
            data = f.read().split()
            C = Counter(data, keywords)
            matched = C.collection
            f.closed
            for item in matched.items():
                print('Keyword "{}" occur {} times'.format(
                    item[0], item[1]
                ))
    else:
        print('File "{}" does not exist!'.format(filename))
      
      
Counter.py

#!/usr/bin/env python3

class Counter:

    def __init__(self, data, pattern=None):
        self.data = tuple(data)
        self.pattern = [str(i) for i in pattern] if pattern else None
        self.collection = dict()
        if self.pattern:
            self.matching()
        else:
            self.count()

    def count(self):
        # if data is string or list
        for item in self.data:
            item = str(item) # just for consistency
            if item in self.collection:
                self.collection[item] += 1
            else:
                self.collection[item] = 1

    def matching(self):
        # if data is string or list
        for item in self.data:
            item = str(item) # just for consistency
            if item in self.pattern:
                if item in self.collection:
                    self.collection[item] += 1
                else:
                    self.collection[item] = 1

    def duplicates(self):
        c = self.collection
        return {i:c[i] for i in c if c[i] > 1}

    def uniques(self):
        c = self.collection
        return {i:c[i] for i in c if c[i] == 1}

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