\[ \begin{align}\begin{aligned}\newcommand\blank{~\underline{\hspace{1.2cm}}~}\\% Bold symbols (vectors) \newcommand\bs[1]{\mathbf{#1}}\\% Poor man's siunitx \newcommand\unit[1]{\mathrm{#1}} \newcommand\num[1]{#1} \newcommand\qty[2]{#1~\unit{#2}}\\\newcommand\per{/} \newcommand\squared{{}^2} % % Scale \newcommand\milli{\unit{m}} \newcommand\centi{\unit{c}} \newcommand\kilo{\unit{k}} \newcommand\mega{\unit{M}} % % Angle \newcommand\radian{\unit{rad}} \newcommand\degree{\unit{{}^\circ}} % % Time \newcommand\second{\unit{s}} % % Distance \newcommand\meter{\unit{m}} \newcommand\m{\meter} \newcommand\inch{\unit{in}} \newcommand\feet{\unit{ft}} \newcommand\mile{\unit{mi}} \newcommand\mi{\mile} % % Volume \newcommand\gallon{\unit{gal}} % % Mass \newcommand\gram{\unit{g}} \newcommand\g{\gram} % % Frequency \newcommand\hertz{\unit{Hz}} \newcommand\rpm{\unit{rpm}} % % Voltage \newcommand\volt{\unit{V}} \newcommand\V{\volt} \newcommand\millivolt{\milli\volt} \newcommand\mV{\milli\volt} \newcommand\kilovolt{\kilo\volt} \newcommand\kV{\kilo\volt} % % Current \newcommand\ampere{\unit{A}} \newcommand\A{\ampere} \newcommand\milliampereA{\milli\ampere} \newcommand\mA{\milli\ampere} \newcommand\kiloampereA{\kilo\ampere} \newcommand\kA{\kilo\ampere} % % Resistance \newcommand\ohm{\Omega} \newcommand\milliohm{\milli\ohm} \newcommand\kiloohm{\kilo\ohm} % correct SI spelling \newcommand\kilohm{\kilo\ohm} % "American" spelling used in siunitx \newcommand\megaohm{\mega\ohm} % correct SI spelling \newcommand\megohm{\mega\ohm} % "American" spelling used in siunitx % % Inductance \newcommand\henry{\unit{H}} \newcommand\H{\henry} \newcommand\millihenry{\milli\henry} \newcommand\mH{\milli\henry} % % Temperature \newcommand\celsius{\unit{^{\circ}C}} \newcommand\C{\unit{\celsius}} \newcommand\fahrenheit{\unit{^{\circ}F}} \newcommand\F{\unit{\fahrenheit}} \newcommand\kelvin{\unit{\K}} \newcommand\K{\unit{\kelvin}}\\% Power \newcommand\watt{\unit{W}} \newcommand\W{\watt} \newcommand\milliwatt{\milli\watt} \newcommand\mW{\milli\watt} \newcommand\kilowatt{\kilo\watt} \newcommand\kW{\kilo\watt} % % Torque \newcommand\ozin{\unit{oz}\text{-}\unit{in}} \newcommand\newtonmeter{\unit{N\text{-}m}}\end{aligned}\end{align} \]

Apr 16, 2025 | 356 words | 4 min read

9.2.4. File Analysis

Instructions

Write a program that processes the two provided text files (python_1.txt and python_2.txt) and produces the following output files.

python_1_word_frequency.txt

This file should contain all of the unique words in the file python_1.txt printed one per line in alphabetical order. Each word should be followed by a colon, a space, and the number of times that word appears in python_1.txt.

python_2_word_frequency.txt

This file should contain all of the unique words in the file python_2.txt printed one per line in alphabetical order. Each word should be followed by a colon, a space, and the number of times that word appears in python_2.txt.

common_words.txt

This output file should contain all of the words that appear in both python_1.txt and python_2.txt, printed one per line in alphabetical order.

eitherbutnotboth.txt

This file should contain all of the words that appear in either python_1.txt or python_2.txt but no words that appear in both. The words should be printed one per line in alphabetical order.

For comparison purposes, all the words should be converted to lower case and all leading and trailing punctuation should be removed.

Hints:

• The string module includes a punctuation string which contains all of the ASCII punctuation characters.

• It might be helpful to write a function that accepts a filename as an argument and returns a list of all the words in that file. Then have another function that accepts a list of words as an argument and returns a dictionary with the unique words in the list as keys and the number of times each word appears in the file as values.

• You can use the sorted() function to get a sorted list of the keys and values in a dictionary.

• You can use the set() function to create a set from the keys in a dictionary.

Sample Output

Ensure your program’s output matches the provided samples exactly. This includes all characters, white space, and punctuation. In the samples, user input is highlighted like this for clarity, but your program should not highlight user input in this way.

Listing 9.1 Case__common_words.txt

a
also
an
and
application
applications
are
as
available
be
but
c
can
data
development
easy
even
extension
for
has
have
high-level
in
is
it
its
language
languages
library
many
may
modules
more
new
not
of
on
or
other
programming
programs
python
several
simple
standard
the
to
types
will
with
write
you

Listing 9.2 Case__eitherbutnotboth.txt

1
able
about
additional
after
all
allows
api
appetite
applicable
approach
areas
around
arrays
at
attempt
automate
awk
basic
basis
batch
because
being
best
binary
books
built
bunch
c/c++/java
callable
changing
checking
code
collection
comes
commonly
complicated
comprehensive
computers
concepts
contains
could
cover
covering
custom
customizable
cycle
database
definition
depth
described
description
design
developer
dictionaries
distributed
distributions
do
documentation
does
domain
don't
done
dynamic
easily
effective
efficient
elegant
embedding
error
eventually
every
example
examples
experience
extended
extending
extensions
extensive
feature
features
files
find
first-draft
flavor
flexible
form
formal
free
freely
from
functions
game
games
general
get
give
gives
good
gui
hand
hands-on
handy
help
helps
https://www.python.org
idea
ideal
if
implement
implemented
informally
instead
interpreted
interpreter
into
introduces
job
just
language's
large
larger
learn
least
libraries
like
lot
macos
major
make
manual
maybe
most
moving
much
nature
noteworthy
number
object-oriented
objects
off-line
offer
offering
offers
operating
over
party
perform
perhaps
perl
photo
platforms
pointers
powerful
problem
professional
program
python's
python/c
quickly
rapid
read
reader
reading
ready
real
rearrange
reference
rename
reused
same
script
scripting
scripts
search-and-replace
see
self-contained
shell
simpler
single
site
slow
small
so
software
some
source
specialized
split
structure
structures
style
such
suitable
suite
support
syntax
system
systems
take
task
tasks
tedious
test
testing
text
than
that
there
there's
these
things
third
this
those
time
together
too
tools
tutorial
typing
unix
use
used
usual
various
very-high-level
want
way
web
well
well-suited
whetting
whole
windows
wish
work
write/compile/test/re-compile
writing
written
yet
you'd
you're
you've
your

Listing 9.3 Case__python_1_word_frequency.txt

a: 5
able: 1
about: 1
additional: 1
after: 1
all: 2
also: 3
an: 3
and: 20
api: 1
application: 1
applications: 1
approach: 1
are: 3
areas: 1
as: 2
attempt: 1
available: 1
basic: 1
be: 5
binary: 1
books: 1
but: 2
c: 5
callable: 1
can: 1
commonly: 1
comprehensive: 1
concepts: 1
contains: 1
cover: 1
covering: 1
customizable: 1
data: 2
definition: 1
depth: 1
described: 1
description: 1
development: 1
distributed: 1
distributions: 1
documentation: 1
does: 1
dynamic: 1
easily: 1
easy: 1
effective: 1
efficient: 1
elegant: 1
embedding: 1
even: 1
every: 2
examples: 1
experience: 1
extended: 1
extending: 1
extension: 1
extensions: 1
extensive: 1
feature: 2
features: 2
flavor: 1
for: 5
form: 1
formal: 1
free: 1
freely: 2
from: 2
functions: 1
give: 1
gives: 1
good: 1
hands-on: 1
handy: 1
has: 1
have: 1
helps: 1
high-level: 1
https://www.python.org: 1
idea: 1
ideal: 1
implemented: 1
in: 6
informally: 1
instead: 1
interpreted: 1
interpreter: 4
introduces: 2
is: 3
it: 5
its: 1
language: 6
language's: 1
languages: 1
learn: 2
library: 4
major: 1
make: 1
manual: 1
many: 3
may: 1
modules: 4
more: 2
most: 2
nature: 1
new: 1
not: 1
noteworthy: 1
object-oriented: 1
objects: 1
of: 6
off-line: 1
on: 1
or: 5
other: 1
party: 1
platforms: 2
pointers: 1
powerful: 1
programming: 2
programs: 2
python: 16
python's: 2
python/c: 1
rapid: 1
read: 3
reader: 1
reading: 1
ready: 1
reference: 2
same: 1
scripting: 1
see: 1
self-contained: 1
several: 1
simple: 1
single: 1
site: 2
so: 1
source: 1
standard: 4
structures: 1
style: 1
suitable: 1
syntax: 1
system: 1
the: 17
there: 1
third: 1
this: 2
to: 9
together: 1
tools: 1
tutorial: 4
types: 1
typing: 1
used: 1
various: 1
web: 1
well: 1
will: 3
with: 2
write: 2
you: 3

Listing 9.4 Case__python_2_word_frequency.txt

1: 1
a: 21
allows: 1
also: 1
an: 1
and: 10
appetite: 1
applicable: 1
application: 2
applications: 1
are: 2
around: 1
arrays: 1
as: 4
at: 2
automate: 1
available: 1
awk: 1
basis: 1
batch: 2
be: 1
because: 1
being: 1
best: 1
built: 1
bunch: 1
but: 4
c: 1
c/c++/java: 2
can: 4
changing: 1
checking: 1
code: 1
collection: 1
comes: 1
complicated: 1
computers: 1
could: 3
custom: 1
cycle: 1
data: 3
database: 1
design: 1
developer: 1
development: 1
dictionaries: 1
do: 1
domain: 1
don't: 1
done: 1
easy: 1
error: 1
even: 2
eventually: 1
example: 1
extension: 1
files: 5
find: 3
first-draft: 1
flexible: 1
for: 7
game: 1
games: 1
general: 1
get: 2
gui: 2
hand: 1
has: 1
have: 1
help: 1
high-level: 1
if: 2
implement: 1
in: 5
into: 1
is: 6
it: 4
its: 1
job: 1
just: 1
language: 5
languages: 1
large: 3
larger: 1
least: 1
libraries: 1
library: 1
like: 2
lot: 1
macos: 1
many: 1
may: 2
maybe: 1
modules: 2
more: 4
moving: 1
much: 4
new: 1
not: 1
number: 1
of: 7
offer: 1
offering: 1
offers: 1
on: 3
operating: 1
or: 8
other: 2
over: 1
perform: 1
perhaps: 2
perl: 1
photo: 1
problem: 1
professional: 1
program: 4
programming: 1
programs: 3
python: 8
quickly: 1
real: 1
rearrange: 1
rename: 1
reused: 1
script: 1
scripts: 2
search-and-replace: 1
several: 1
shell: 3
simple: 2
simpler: 1
slow: 1
small: 1
software: 1
some: 2
specialized: 1
split: 1
standard: 1
structure: 1
such: 2
suite: 1
support: 1
systems: 1
take: 1
task: 2
tasks: 1
tedious: 1
test: 1
testing: 1
text: 2
than: 3
that: 4
the: 6
there's: 1
these: 1
things: 1
those: 1
time: 1
to: 10
too: 1
types: 2
unix: 2
use: 4
usual: 1
very-high-level: 1
want: 1
way: 1
well-suited: 1
whetting: 1
whole: 1
will: 1
windows: 2
wish: 1
with: 2
work: 2
write: 3
write/compile/test/re-compile: 1
writing: 2
written: 1
yet: 1
you: 11
you'd: 2
you're: 2
you've: 1
your: 4

Deliverables

Save your finished program as file_analysis_login.py, replacing login with your Purdue login. Then submit it along with all the deliverables listed in Table 9.8 below.

Table 9.8 Deliverables

Deliverable	Description
file_analysis_login.py	Your finished program.
Screenshot(s)	PNG(s) capturing the test case.