Write a function charHistogram(filename: str) -> None that takes the file name of a text file and prints a text rendering of the histogram of the English letters that appear in that file. Specifically, your function will perform the following steps: Step 1: Calculate the frequency of each letter in the English alphabet, treating everything as lower case. This means, for example, the string "five I" contains 2 i's %3D Step 2: Display a histogram on the console using print to indicate the frequencies of all the letters. The histogram contains one line per letter, ordered from the letter with highest frequency to the letter with the lowest frequency. When multiple letters have the same frequency, the tie breaks by the ASCII values of those letters in which the letter with smaller ASCII value appears before the letter with larger ASCII value. For instance, if the frequencies of a and b are 5, then we display a first then display b on the next line. Only the letters with a nonzero frequency are displayed. The frequency of a letter is represented by the number of +'s. For example, if the letter b has frequency 15, we'll render b +++ single space and 15 +'s. +++, i.e., the letter b followed by a Hint: You are allowed to use sorted(obj) function that returns a sorted list of the iterable object obj (obj could be a list, a set or a tuple, for examples.) Example: Consider the first few words of the fa- mous filler text Lorem ipsum: Your character histogram code should print the following to screen: Lorem ipsum dolor sit amet, consectetur adipiscing e ++++++++++++++++++++++++ elit. Praesent ac sem lorem. Integer elementum t ++++++++++++++++++ ultrices purus, sit amet malesuada tortor S +++++++++++++++++ pharetra ac. Vestibulum sapien nibh, dapibus i ++++++++++++++++ a +++++++++++++++ nec bibendum sit amet, sodales id justo. m ++++++++++++ r ++++++++++++ u ++++++++++++ 1 +++++++++ n +++++++++ o +++++++++ C +++++++ d +++++++ p +++++++ b +++++ g ++ h ++ i + V +
Write a function charHistogram(filename: str) -> None that takes the file name of a text file and prints a text rendering of the histogram of the English letters that appear in that file. Specifically, your function will perform the following steps: Step 1: Calculate the frequency of each letter in the English alphabet, treating everything as lower case. This means, for example, the string "five I" contains 2 i's %3D Step 2: Display a histogram on the console using print to indicate the frequencies of all the letters. The histogram contains one line per letter, ordered from the letter with highest frequency to the letter with the lowest frequency. When multiple letters have the same frequency, the tie breaks by the ASCII values of those letters in which the letter with smaller ASCII value appears before the letter with larger ASCII value. For instance, if the frequencies of a and b are 5, then we display a first then display b on the next line. Only the letters with a nonzero frequency are displayed. The frequency of a letter is represented by the number of +'s. For example, if the letter b has frequency 15, we'll render b +++ single space and 15 +'s. +++, i.e., the letter b followed by a Hint: You are allowed to use sorted(obj) function that returns a sorted list of the iterable object obj (obj could be a list, a set or a tuple, for examples.) Example: Consider the first few words of the fa- mous filler text Lorem ipsum: Your character histogram code should print the following to screen: Lorem ipsum dolor sit amet, consectetur adipiscing e ++++++++++++++++++++++++ elit. Praesent ac sem lorem. Integer elementum t ++++++++++++++++++ ultrices purus, sit amet malesuada tortor S +++++++++++++++++ pharetra ac. Vestibulum sapien nibh, dapibus i ++++++++++++++++ a +++++++++++++++ nec bibendum sit amet, sodales id justo. m ++++++++++++ r ++++++++++++ u ++++++++++++ 1 +++++++++ n +++++++++ o +++++++++ C +++++++ d +++++++ p +++++++ b +++++ g ++ h ++ i + V +
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Python: Character Histogram
Transcribed Image Text:Write a function charHistogram(filename: str) -> None that takes the file name of a text file and
prints a text rendering of the histogram of the English letters that appear in that file. Specifically, your
function will perform the following steps:
Step 1: Calculate the frequency of each letter in the English alphabet, treating everything as lower case.
This means, for example, the string "five I" contains 2 i's
%3D
Step 2: Display a histogram on the console using print to indicate the frequencies of all the letters.
The histogram contains one line per letter, ordered from the letter with highest frequency to
the letter with the lowest frequency. When multiple letters have the same frequency, the tie
breaks by the ASCII values of those letters in which the letter with smaller ASCII value appears
before the letter with larger ASCII value. For instance, if the frequencies of a and b are 5, then
we display a first then display b on the next line. Only the letters with a nonzero frequency
are displayed. The frequency of a letter is represented by the number of +'s. For example, if
the letter b has frequency 15, we'll render b +++
single space and 15 +'s.
+++, i.e., the letter b followed by a
Hint: You are allowed to use sorted(obj) function that returns a sorted list of the iterable object obj
(obj could be a list, a set or a tuple, for examples.)
Example: Consider the first few words of the fa-
mous filler text Lorem ipsum:
Your character histogram code should print the
following to screen:
Lorem ipsum dolor sit amet, consectetur adipiscing
e ++++++++++++++++++++++++
elit.
Praesent ac sem lorem.
Integer elementum
t ++++++++++++++++++
ultrices purus, sit amet malesuada tortor
S +++++++++++++++++
pharetra ac.
Vestibulum sapien nibh, dapibus
i ++++++++++++++++
a +++++++++++++++
nec bibendum sit amet, sodales id justo.
m ++++++++++++
r ++++++++++++
u ++++++++++++
1 +++++++++
n +++++++++
o +++++++++
C +++++++
d +++++++
p +++++++
b +++++
g ++
h ++
i +
V +
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